Presentations & Posters

Presentations

  1. Thickness-dependent Optical Properties of ZnO Films from the Mid-infrared to the Vacuum-ultraviolet
    • Authors: Nuwanjula Samarasingha, Stefan Zollner, Dipayan Pal, Aakash Mathur, Ajaib Singh, Rinki Singh, Sudeshna Chattopadhyay
      • 8th International Conference on Spectroscopic Ellipsometry, Barcelona, Spain, May 26- May 31, 2019
  2. The Direct Band Gap of α-Sn Investigated by Infrared Ellipsometry
    • Authors: Rigo A. Carrasco, Cesy M. Zamarripa, Stefan Zollner, José Menéndez
      • 8th International Conference on Spectroscopic Ellipsometry, Barcelona, Spain, May 26- May 31, 2019
  3. Temperature Dependence of the Critical Point Parameters of the Direct Band Gap of Germanium
    • Authors: Carola Emminger, Nuwanjula Samarasingha, Farzin Abadizaman, Stefan Zollner
      • 8th International Conference on Spectroscopic Ellipsometry, Barcelona, Spain, May 26- May 31, 2019
  4. Thickness Dependent Optical and Electronic Properties of Semiconductor Thin-films for Energy Research
    • Authors: Aakash Mathur, Dipayan Pal, Ajaib Singh, Rinki Singh, Stefan Zollner, Sudeshna Chattopadhyay
      • 8th International Conference on Spectroscopic Ellipsometry, Barcelona, Spain, May 26- May 31, 2019
  5. Femtosecond transient spectroscopic ellipsometry on semiconductors
    • Authors: Steffen Richter, Shirly Espinoza, Oliver Herrfurth, Mateusz Rebarz, Stefan Zollner, Rüdiger Schmidt-Grund, Jakob Andreasson
      • 8th International Conference on Spectroscopic Ellipsometry, Barcelona, Spain, May 26- May 31, 2019 (Invited)
  6. Time-resolved spectroscopic ellipsometry on Ge and InP
    • Authors: Shirly Espinoza, Steffen Richter, Mateusz Rebarz, Oliver Herrfurth, Nuwanjula Samarasingha, Rüdiger Schmidt-Grund, Jakob Andreasson, Stefan Zollner
      • 8th International Conference on Spectroscopic Ellipsometry, Barcelona, Spain, May 26- May 31, 2019
  7. Subwavelength antimonide infrared detector coupled with dielectric resonator antenna
    • Authors: Alireza Kazemi, Amin Ranjbar, Qingyuan Shu, Vinita Dahiya, Pablo Paradis, Christopher Ball, Theodore Ronningen, Stefan Zollner, Anthony Grbic, and Sanjay Krishna
      • Presented at: SPIE Defense and Commercial Sensing (DCS) conference, Baltimore, MD, 14-18 April 2019 (submitted)
  8. Time-resolved spectroscopic ellipsometry on Ge and Si
    • Authors: Steffen Richter, Shirly Espinoza, Oliver Herrfurth, Mateusz Rebarz, Rüdiger Schmidt-Grund, Jakob Andreasson, and Stefan Zollner
      • Presented at: DPG Spring Meeting, Regensburg, Germany, March 31 – April 5, 2019
  9. Non-equilibrium (Transient) Experiments on Zinc Oxide
    • Authors: Shirly Espinoza, Steffen Richter, Oliver Herrfurth, Mateusz Rebarz, Stefan Zollner, Marius Grundman, Jakob Andreasson, and Rüdiger Schmidt-Grund
      • Presented at: DPG Spring Meeting, Regensburg, Germany, March 31 – April 5, 2019
  10. Investigation of the Temperature Dependence of the Critical Points E0 and E00 of Bulk Ge
    • Authors: C. Emminger, N. Samarasingha, F. Abadizaman, S. Zollner
      • Presented at: DPG Spring Meeting, Regensburg, Germany, March 31 – April 5, 2019
  11. Direct band gap of alpha-tin investigated by infrared ellipsometry
    • Authors: Rigo A. Carrasco, Cesy M. Zamarripa, Stefan Zollner, and Jose Menendez
      • Presented at: DPG Frühjahrstagung, Regensburg, Germany, 31 March to 05 April 2019
  12. Analysis of the Critical Point Parameters of E0 and E00 of Bulk Ge
    • Authors: C. Emminger, N. Samarasingha, F. Abadizaman, S. Zollner
      • Presented at: APS March Meeting, Boston, Massachusetts, March 4-8, 2019
  13. Electrons and Phonons: Precision Measurements of Optical Constants with Spectroscopic Ellipsometry
    • Author: S. Zollner
      • Presented at: Piezo 2019, Špindlerův Mlýn, Czech Republic, 30 January 2019.
  14. Time-resolved spectroscopic ellipsometry experiments on zinc oxide
    • Author: Shirly Espinoza, Steffen Richter, Oliver Herrfurth, Mateusz Rebarz, Stefan Zollner, Jakob Andreasson, and Rüdiger Schmidt-Grund
      • Presented at: Piezo 2019, Špindlerův Mlýn, Czech Republic, 29 January 2019.
  15. The Direct Band Gap of α-Sn Investigated by Infrared Ellipsometry
    • Authors: R. A. Carrasco, C.M. Zamarripa, S. Zollner, José Menéndez
      • Presented at: Physics and Chemistry of Surfaces, and Interfaces 46th Conference (PCSI-46) at Santa Fe NM, Jan 13-Jan 17, 2019
  16. Mid-infrared optical constants of InAsSb alloys and bulk GaSb
    • Authors: Pablo Paradis, Rigo A. Carrasco, Stefan Zollner, Vinita Dahiya, Alireza Kazemi, John Carlin, and Sanjay Krishna
      • Presented at: AVS 65th International Symposium and Exhibition, Long Beach, CA, 21-26 October 2018
  17. Temperature dependent dielectric function and critical point comparison of bulk Ge and α-Sn on InSb
    • Authors: Rigo A. Carrasco, Carola Emminger, Nuwanjula Samarasingha, Farzin Abadizaman, and Stefan Zollner
      • Presented at: AVS 65th International Symposium and Exhibition, Long Beach, CA, 21-26 October 2018
  18. Temperature-dependent ellipsometry and thermal stability of Ge2Sb2Te5C phase change memory alloys
    • Authors: Cesy M. Zamarripa, Nuwanjula Samarasingha, Farzin Abadizaman, Rigo A. Carrasco, and Stefan Zollner
      • Presented at: AVS 65th International Symposium and Exhibition, Long Beach, CA, 21-26 October 2018
  19. Phonon confinement and excitonic absorption in the optical properties of ZnO films
    • Authors: Nuwanjula Samarasingha, Stefan Zollner, Dipayan Pal, Aakash Mathur, Ajaib Singh, Rinki Singh, and Sudeshna Chattopadhyay
      • Presented at: AVS 65th International Symposium and Exhibition, Long Beach, CA, 21-26 October 2018
  20. Anomaly in the Optical Constants of Ni near the Curie Temperature
    • Authors: Farzin Abadizaman and Stefan Zollner
      • Presented at: AVS 65th International Symposium and Exhibition, Long Beach, CA, 21-26 October 2018
  21. Temperature dependent dielectric function and critical points of bulk Ge compared to α-Sn on InSb
    • Authors: C. Emminger, R. Carrasco, N. Samarasingha, F. Abadizaman, and S. Zollner
      • Presented at: IEEE Photonics Society 2018 Summer Topicals Meeting Series, Waikoloa, HI, July 9-11, 2018
  22. Mid-infrared optical constants of InAsSb alloys and bulk GaSb
    • Authors: Pablo Paradis, Rigo A. Carrasco, Stefan Zollner, Vinita Dahiya, Alireza Kazemi, John Carlin, and Sanjay Krishna
      • Presented at: 2018 NMAVS Symposium and Exhibition, Albuquerque, NM, 22 May 2018
  23. Anomaly in the Optical Constants of Ni near the Curie Temperature
    • Authors: Farzin Abadizaman and Stefan Zollner
      • Presented at: 2018 NMAVS Symposium and Exhibition, Albuquerque, NM, 22 May 2018
  24. Analysis of Critical Points in the Dielectric Function of Ge between 10 and 738 K
    • Authors: Carola Emminger, Nuwanjula Samarasingha, Farzin Abadizaman, and Stefan Zollner
      • Presented at: 2018 NMAVS Symposium and Exhibition, Albuquerque, NM, 22 May 2018
  25. Phonon and exciton absorption in the optical properties of ZnO films
    • Authors: Nuwanjula Samarasingha, Stefan Zollner, Dipayan Pal, Aakash Mathur, Ajaib Singh, Rinki Singh, and Sudeshna Chattopadhyay
      • Presented at: 2018 NMAVS Symposium and Exhibition, Albuquerque, NM, 22 May 2018
  26. Temperature dependent ellipsometry and thermal stability of Ge2Sb2Te5C phase change memory alloys
    • Authors: Cesy M. Zamarripa, Nuwanjula Samarasingha, Farzin Abadizaman, Rigo A. Carrasco, and Stefan Zollner
      • Presented at: 2018 NMAVS Symposium and Exhibition, Albuquerque, NM, 22 May 2018
  27. Steffen Richter, Shirly Espinoza, Mateusz Rebarz, Oliver Herrfurth, Miroslav Kloz, Marius Grundmann, Rüdiger Schmidt-Grund, Stefan Zollner, Jakob Andreasson,fs-timeresolved ellipsometry to study the dynamics in the electronic density of states, International Conference on the Physics of Semiconductors 2018 (submitted).
  28. Skills and behaviors for sucessful industrial physicists
    • Author: S. Zollner
      • Presented at: American Physical Society April Meeting, Columbus, OH, 15 April 2018 (invited)
  29. Mid-infrared optical constants of InAsSb alloys and bulk GaSb
    • Authors: P. Paradis, R.A. Carrasco, S. Zollner, V. Dahiya, A. Kazemi, J. Carlin, S. Krishna
      • Presented at: Butler University 30th Annual Undergraduate Research Conference, Indianapolis, IN,13 April 2018
  30. Mueller matrix anomaly near the Curie temperature of Ni
    • Authors: F. Abadizaman and S. Zollner
      • Presented at: Ellipsometry Workshop Chemnitz, Germany, March 19-21, 2018
  31. Influence of temperature, strain, alloy composition, doping, and film thickness on the dielectric function of semiconductors
    • Author: S. Zollner
      • Presented at: Ellipsometry Workshop Chemnitz, Germany, March 19-21, 2018 (invited)
  32. Femtosecond time-resolved spectroscopic ellipsometry
    • Authors: S. Richter, O. Herrfurth, S.J. Espinoza Herrera, M. Rebarz, M. Grundmann, S. Zollner, J. Andreasson, and R. Schmidt-Grund
      • Presented at: Ellipsometry Workshop Chemnitz, Germany, March 19-21, 2018 (invited)
  33. Excitonic absorption and optical properties of ZnO films
    • Authors: Stefan Zollner, Nuwanjula Samarasingha, Zachary Yoder, Dipayan Pal, Aakash Mathur, Ajaib Singh, Rinki Singh, and Sudeshna Chattopadhyay
      • Presented at: DPG Frühjahrstagung, Berlin, 11-16 March 2018
  34. Ellipsometry Analysis of Germanium-on-Insulator Wafers
    • Authors: Rigo A. Carrasco, Nuwanjula Samarasingha, Bich-Yen Nguyen, Dr. Stefan Zollner
      • Presented at: APS March Meeting, Los Angeles, California, March 5 – March 9, 2018
  35. Excitonic absorption and optical properties of ZnO films
    • Authors: N. Samarasingha, Z. Yoder, S. Zollner, D. Pal, A. Mathur, A. Singh, R. Singh, S. Chattopadhyay
      • Presented at: APS March Meeting, Los Angeles, California, March 5 – March 9, 2018
  36. Temperature dependence of the dielectric function and analysis of critical point parameters of bulk Ge
    • Authors: C. Emminger, N. Samarasingha, F. Abadizaman, N. Fernando, S. Zollner
      • Presented at: APS March Meeting, Los Angeles, California, March 5 – March 9, 2018
  37. Temperature dependent Mueller matrix of magnetized Ni near the Curie temperature
    • Authors: F. Abadizaman, P. Paradis, S. Zollner
      • Presented at: APS March Meeting, Los Angeles, California, March 5 – March 9, 2018
  38. Optical and structural characterization of pseudomorphic and relaxed Ge1-ySny alloys (y<18.5%) grown on Ge by MBE
    • Authors: N.S. Fernando, R.A. Carrasco, R. Hickey, J. Hart, R. Hazbun, J. Kolodzey, and S. Zollner
      • Presented at: Lawrence Symposium on Semiconductor Epitaxy, Scottsdale, AZ, February 2018
  39. S. Zollner, Precision measurements of optical constants with spectroscopic ellipsometry, AFOSR Program Review, Dayton, OH, 1/11/2018
  40. Spectroscopic Ellipsometry and Band Structure of α-tin on InSb
    • Authors: R. Carrasco, N. Samarasingha Arachchige, C. Zamarripa, S. Zollner, S. Chastang, G.Grzybowski, J. Duan, B. Claflin, and A. Kiefer
      • Presented at: Dayton, OH, 10 January 2018
  41. Temperature Dependent Mueller Matrix Measurements of Magnetized Ni near the Curie Temperature
    • Authors: Farzin Abadizaman, Pablo Paradis, Stefan Zollner
      • Presented at: AVS 64th International Symposium & Exhibition, Tampa, Florida, October 30 – November 3, 2017
  42. Excitonic effects on the optical properties of thin ZnO films on different substrates
    • Authors: Nuwanjula Samarasingha, Zachary Yoder, Stefan Zollner, Dipayan Pal, Aakash Mathur, Ajaib Singh, Rinki Singh, Sudeshna Chattopadhyay
      • Presented at: AVS 64th International Symposium & Exhibition, Tampa, Florida, October 30 – November 3, 2017
  43. Temperature dependence of the dielectric function and interband critical points of bulk Ge
    • Authors: Carola Emminger, Nuwanjula Samarasingha, Farzin Abadizaman, Nalin Fernando, Stefan Zollner
      • Presented at: AVS 64th International Symposium & Exhibition, Tampa, Florida, October 30 – November 3, 2017
  44. Temperature Dependence of the Dielectric Function of Bulk Ge
    • Authors: Carola Emminger, Nuwanjula Samarasingha, Farzin Abadizaman, Nalin Fernando, Stefan Zollner
      • Presented at: AVS New Mexico Symposium, Albuquerque, NM, May 16th, 2017
  45. Excitonic effect at interfaces in thin oxide films
    • Authors: Nuwanjula Samarasingha, Cesar Rodriguez, Jaime Moya, Nalin Fernando, Stefan Zollner, Patrick Ponath, Kristy J. Kormondy, Alex Demkov, Dipayan Pal, Aakash Mathur, Ajaib Singh, Surjendu Dutta, Jaya Singhal, Sudeshna Chattopadhyay
      • Presented at: AVS New Mexico Symposium, Albuquerque, NM, May 16th, 2017
  46. Temperature Dependent Mueller Matrix Measurements of Magnetised Ni near the Curie Temperature
    • Authors: Farzin Abadizaman, Stefan Zollner
      • Presented at: AVS New Mexico Symposium, Albuquerque, NM, May 16th, 2017
  47. Near-Infrared to Vacuum Ultraviolet (VUV) Dielectric Properties of LaAlO3
    • Authors: Jacqueline Cooke, Tom Tiwald, Nuwanjula Samarasingha, Nalin Fernando, Stefan Zollner
      • Presented at: AVS New Mexico Symposium, Albuquerque, NM, May 16th, 2017
  48. Effects of composition and strain on band gaps of pseudomorphic Ge1-x-ySixSny on Ge
    • Authors: N. Fernando, R. Hickey, J. Hart, R. Hazbun, D. Zhang, J. Kolodezy, and S. Zollner
      • Presented at: AVS 63rd International Symposium & Exhibition, Nashville, TN, 6-11 November 2016
  49. Excitons at interfaces in ellipsometric spectra
    • Authors: Nuwanjula Samarasingha, Cesar Rodriguez, Jaime Moya, Nalin Fernando, Stefan Zollner, Patrick Ponath, Kristy J. Kormondy, Alex Demkov, Dipayan Pal, Aakash Mathur, Ajaib Singh, Surjendu Dutta, Jaya Singhal, Sudeshna Chattopadhyay
      • Presented at: AVS 63rd International Symposium & Exhibition, Nashville, TN, 6-11 November 2016
  50. Infrared and Visible Dielectric Properties of (LaAlO3)0.3(Sr2AlTaO6)0.35
    • Authors: J. A. Cooke, T. N. Nunley, T. Willett-Gies, S. Zollner, P. Marsik and C. Bernhard
      • Presented at: AVS 63rd International Symposium & Exhibition, Nashville, TN, 6-11 November 2016
  51. Band gap engineering of pseudomorphic Ge1-x-ySixSny alloys on Ge for photonic applications
    • Authors: N. Fernando, S. Zollner, R. Hickey, J. Hart, D. Zhang, R. Hazbun, and J. Kolodzey
      • Presented at: APS Four Corners Section Meeting, Las Cruces, NM, 21-22 October 2016
  52. Excitons at interfaces in thin oxide films
    • Authors: Nuwanjula Samarasingha, Cesar Rodriguez, Jaime Moya, Nalin Fernando, Stefan Zollner, Patrick Ponath, Kristy J. Kormondy, Alex Demkov, Dipayan Pal, Aakash Mathur, Ajaib Singh, Surjendu Dutta, Jaya Singhal, Sudeshna Chattopadhyay
      • Presented at: APS Four Corners Section Meeting, Las Cruces, NM, 21-22 October 2016
  53. Infrared and Visible Dielectric Properties of LSAT
    • Authors: J. A. Cooke, T. N. Nunley, T. Willett-Gies, S. Zollner, P. Marsik and C. Bernhard
      • Presented at: APS Four Corners Section Meeting, Las Cruces, NM, 21-22 October 2016
  54. Band structure and optical properties of pseudomorphic Ge1−x−ySixSny on Ge
    • Authors: N.S. Fernando, J. Hart, D. Zhang, R. Hickey, R. Hazbun, J. Kolodzey, and S. Zollner
      • Presented at: IEEE Summer Topicals Conference on Emerging Technology for Integrated Photonics, Newport Beach, CA, 11-13 July 2016
  55. Precise optical constants of Ge and GeO2 from 0.5 to 6.6 eV
    • Authors: T.N. Nunley, N.S. Fernando, N. Samarasingha, J.M. Moya, C.M. Nelson, A.A. Medina, S. Zollner
      • Presented at: IEEE Summer Topicals Conference on Emerging Technology for Integrated Photonics, Newport Beach, CA, 11-13 July 2016
  56. Band structure of pseudomorphic Ge1-x-ySixSny on Ge
    • Authors: N.S. Fernando, R. Hickey, J. Hart, R. Hazbun, D. Zhang, J. Kolodzey, and S. Zollner
      • Presented at: The AVS 2016 New Mexico Symposium, Albuquerque, NM, May 24th, 2016
  57. Infrared and visible dielectric properties of (LaAlO3)0.3(Sr2AlTaO6)0.35
    • Authors: J. Cooke, T.N. Nunley, T. Willett-Gies, and S. Zollner
      • Presented at: AVS 2016 New Mexico Symposium, Albuquerque, NM, May 24th, 2016
  58. Optical properties of Ni and Ni:V alloys
    • Authors: J.M. Moya, T.N. Nunley, D.P. Adams, and S. Zollner
      • Presented at: AVS 2016 New Mexico Symposium, Albuquerque, NM, May 24th, 2016
  59. FTIR ellipsometry study on RF sputtered Ni81Fe19O thin films
    • Authors: A.A. Taludker, Y. Cui, M. Compton, W. Geerts, L. Scolfaro, and S. Zollner
      • Presented at: The Materials Research Society Spring Meeting, Symposium EP11.6.16, 30 March 2016
  60. Electronic band structure and infrared lattice dynamics of single-crystal nickel oxide (NiO)
    • Authors: S. Zollner, C.M. Nelson, T.I. Willett-Gies, A. Ghosh, and L.S. Abdallah
      • Presented at: 80. Jahrestagung der DPG und DPG-Frühjahrstagung, 6-11 March  2016, Regensburg, Germany
  61. Optical constants of Ge and GeO2 from ellipsometry
    • Authors: T.N. Nunley, N. Fernando, J. Moya, and S. Zollner
      • Presented at: 80. Jahrestagung der DPG und DPG-Frühjahrstagung, 6-11 March  2016, Regensburg, Germany
  62. Structural and optical properties of SrTiO3 thin films on different substrates
    • Authors: N. Samarasingha, C. Rodriguez, J. Moya, S. Zollner, N. Fernando, S. Chattopadhyay, P. Ponath, and A.A. Demkov
      • Presented at: 2016 Lawrence Symposium on Epitaxy, 21-24 February 2016, Scottsdale, Az
  63. Structural and optical properties of SrTiO3 thin films on semiconductors
    • Authors: N. Samarasingha, C. Rodriguez, J. Moya, S. Zollner, N. Fernando, S.Chattopadhyay, P. Ponath, and A.A. Demkov
      • Presented at: The 43rd Conference on the Physics and Chemistry of Surfaces and Interfaces, Palm Springs, CA, 17-21 January 2016
  64. Phonon Dispersion and Electronic Band Structure of NiO
    • Authors: A. Ghosh, T. Willett-Gies, C. Nelson, L. Abdallah
      • Presented at: The AVS 62nd International Symposium and Exhibition, San Jose, CA, 22 October 2015
  65. Band Structure and Critical Points of Pseudomorphic Ge1−ySny Alloys on Ge
    • Authors: N. Fernando, T.N. Nunley, S. Zollner, D. Zhang, R. Hickey, J. Kolodzey, AVS 62nd
      • Presented at: The International Symposium and Exhibition, San Jose, CA, 19 October 2015
  66. Strain dependence of the band structure and critical points of pseudomorphic Ge1-ySny alloys on Ge
    • Authors: N. Fernando, J. Moya, S. Zollner, J. Hart, D. Zhang, R. Hickey, R. Hazbun, and J.Kolodzey
      • Presented at: APS Four Corners Section Meeting, 16 October 2015, Tempe, AZ
  67. Structural properties of SrTiO3 thin films on semiconductors
    • Authors: N. Samarasingha, J. Moya, S. Zollner, S. Chattopadhyay, P. Ponath, and A. Demkov
      • Presented at: APS Four Corners Section Meeting, 16 October 2015, Tempe, AZ
  68. Growth and properties of Ge thermal oxides
    • Authors: T.N. Nunley, N. Fernando, J. Moya, C.M. Nelson, and S. Zollner
      • Presented at:  APS Four Corners Section Meeting, 16 October 2015, Tempe, AZ
  69. Comparison of the dielectric function of SrTiO3 on SrTiO3, Si, and Ge substrates
    • Authors: C. Rodriguez, N. Samarasingha, J. Moya, S. Zollner, P. Ponath, and A. Demkov
      • Presented at:  APS Four Corners Section Meeting, 16 October 2015, Tempe, AZ
  70. Comparison of LiF and NiO crystallographic structure using XRD
    • Authors: J. Moya, N. Samarasingha, and S. Zollner
      • Presented at:  APS Four Corners Section Meeting, 16 October 2015, Tempe, AZ
  71. How Thick Is My Film?
    • Authors: S. Zollner
      • Presented at:  APS Four Corners Section Meeting, 16 October 2015, Tempe, AZ (invited)
  72. Optical constants and band structure of NiO
    • Authors: A. Ghosh, C.M. Nelson, L.S. Abdallah, and S. Zollner
      • Presented at:  APS Four Corners Section Meeting, 16 October 2015, Tempe, AZ
  73. Lattice Dynamics and Electronic Structure of NiO
    • Authors: A. Ghosh, C.M. Nelson, T. Willett-Gies, L.S. Abdallah, and S. Zollner
      • Presented at: The CINT Users Meeting, 21 September 2015, Santa Fe, NM
  74. Variable Angle Spectroscopic Ellipsometer Characterization of InAs/GaSb Type-II Strain Layer Superlattice
    • Authors: Lidsky, S. Zollner, M. Zamiri, A. Iurov, B. Klein, S. Krishna
      • Presented at: AVS 2015 New Mexico Symposium, Albuquerque, NM, May 19th, 2015
  75. Comparison of LiF and NiO crystallographic structure using XRD
    • Authors: J. Moya, N.S. Samarasingha, and S. Zollner
      • Presented at: The National Mentoring Community (NMC) Conference, Miami, FL, October 2015
  76. Determination of the Electronic Structure of Nickel Ferrite Thin Films
    • Authors: Luis A. Barrera, Khadijih N. Mitchell, Lina S. Abdallah, Stefan Zollner, N. Pachauri, Arunava Gupta
      • Presented at: AVS 2015 New Mexico Symposium, Albuquerque, NM, May 19th, 2015
  77. Compositional and strain dependence of the band gaps of pseudomorphic Ge1-ySny alloys on Ge
    • Authors: Nalin Fernando, Timothy Nunley, Stefan Zollner, Dainan Zhang, Ryan Hickey, James Kolodzey
      • Presented at: AVS 2015 New Mexico Symposium, Albuquerque, NM, May 19th, 2015
  78. Temperature Dependence of the Dielectric Function of Ni near the Curie Temperature
    • Authors: Dennis P. Trujillo, Laura Pineda, Lina Abdallah, and Stefan Zollner
      • Presented at: AVS 2015 New Mexico Symposium, Albuquerque, NM, May 19th, 2015
  79. Growth and electronic properties of epitaxial NbO2
    • Authors: A.A. Demkov, A.B. Posadas, T. Hadamek, A. O’Hara, T.N. Nunley, S. Rangan, S. Zollner, R.A. Bartynski
      • Presented at: The 18th European Molecular Beam Epitacy Workshop, Canazei, TN, Italy, March 15-18 2015
  80. Investigation of the Band Gap in Co3O4
    • Authors: M. Sholte, C. Lin, K. Kormondy, T.N. Nunley, A. Posadas, S. Zollner, A.A. Demkov
      • Presented at: The American Physical Society March meeting, San Antonio, TX, March 2-6, 2015
  81. Temperature Dependence of the dielectric function of Ni near the Curie Temperature
    • Authors: S. Zollner, D. Trujillo, L. Pineda, L. Abdullah
      • Presented at: The American Physical Society March meeting, San Antonio, TX, March 2-6, 2015
  82. Temperature Dependent band gaps of GeSiSn alloys grown on Ge buffered Si substrates
    • Authors: N. Fernando, T.N. Nunley, S. Zollner, S. Xu, J. Menendez, J. Kouvetakis
      • Presented at: The American Physical Society March meeting, San Antonio, TX, March 2-6, 2015
  83. Ellipsometric Study of NbO2 Grown by MBE on LSAT from 77 to 800 K
    • Authors: T.N. Nunley, S. Zollner, T. Hadamek, A.B. Posadas, A. O’Hara, A.A. Demkov
      • Presented at: The American Physical Society March meeting, San Antonio, TX, March 2-6, 2015
  84. Doping and strain dependence of the electronic band structure in Ge and GeSn allows
    • Authors: C. Xu, J. Gallagher, C. Senaratne, C. Brown, S. Zollner, J. Kouvetakis, J. Menedez
      • Presented at:  The American Physical Society March meeting, San Antonio, TX, March 2-6, 2015
  85. Optical properties of transition metal oxide quantum wells
    • Authors: A.A. Demkov, M. Choi, M. Butcher, C. Rodriguez, Q. He, A. Posadas, A. Borisevich, S. Zollner, C. Lin, E. Ortmann
      • Presented at:  The American Physical Society March meeting, San Antonio, TX, March 2-6, 2015
  86. IR Ellipsometry on RF sputtered Permalloy Oxide thin films
    • Authors: Y. Chui, W. Geerts, F. Twagirayezu, S. Zollner
      • Presented at: The American Physical Society March meeting, San Antonio, TX, March 2-6, 2015
  87. Temperature dependence of the dielectric function and band gap of Co3O4 thin films from the mid-infrared to the near-UV
    • Authors: K.N. Mitchell, T.I. Willett-Gies, S. Zollner, K.J. Kormondy, A.B. Posadas, A. Slepkoi, A.A. Demkov
      • Presented at: The Electronic Materials and Applications 2015, Orlando Fl. January 21-23 2015
  88. Temperature Dependence of the dielectric function of Ni near the Curie Temperature
    • Authors: D. Trujillo, L.G. Pineda, S. Zollner
      • Presented at: The Rio Grande Symposium on Advanced Materials, Albuquerque, NM, October 6, 2014
  89. Optical Constants of NbO2 on LSAT grown by MBE from 0.2 to 6.5 eV
    • Authors: T.N. Nunley, S. Zollner, A.B. Posadas, A. O’Hara, A.A. Demkov
      • Presented at: The Rio Grande Symposium on Advanced Materials, Albuquerque, NM, October 6, 2014
  90. Infrared Optical Conductivity of Ni1-xPtxSi Monosilicides
    • Authors: L.S. Abdallah, T.I. Willett-Gies, E. Delong, S. Zollner
      • Presented at: The Rio Grande Symposium on Advanced Materials, Albuquerque, NM, October 6, 2014
  91. Dielectric Function of Nickel-Ferrite Thin Films from 0.8 to 6.5 eV
    • Authors: L.A. Barrera, K.N. Mitchell, L.S. Abdallah, S. Zollner, N. Pachauri, A. Gupta
      • Presented at: The Rio Grande Symposium on Advanced Materials, Albuquerque, NM, October 6, 2014
  92. Designing Conductive Layers for Fully Integrated Oxide Electronics
    • Authors: A. O’Hara, M. Choi, A.B. Posadas, C.A. Rodriguez, H. Seinige, A.J. Kellock, M.M. Frank, M. Tsoi, S. Zollner, V. Narayanan, A.A. Demkov
      • Presented at: The 45th IEEE Semiconductor Interface Specialists Conference, San Diego, CA, Dec. 10-13, 2014
  93. Epitaxy of polar Semiconductor CoO3 (110): growth, structure, and characterization
    • Authors: K. Kormondy, A. Posadas, A. Slepko, A. Dhamdhere, D. Smith, K. Mitchell, T.I. Willett-Gies, S. Zollner, L. Marshall, J. Zhou, A. Demkov
      • Presented at: The International Conference on the Physics of Semiconductors, Austin TX, August 10-15, 2014
  94. Dielectric Function of NiO from 25 meV to 6eV: Comparison with Silicon
    • Authors: S. Zollner, C.M. Nelson, T.I. Willett-Gies, A. Ghosh
      • Presented at: The International Conference on the Physics of Semiconductors, Austin TX, August 10-15, 2014
  95. Infrared optical conductivity for Ni1-xPtx alloys and Ni1-x>PtxSi monosilicides
    • Authors: L.S. Abdallah, S. Zollner, C. Lavoie, A. Ozcan, M. Raymond
      • Presented at: The 36th Symposium on Applied Surface Analysis, Albuquerque, NM, June 2-6, 2014
  96. Band structure and phonons of bulk NiO
    • Authors: S. Zollner, C.M. Nelson, A. Ghosh, T.I. Willet-Gies, L.S. Abdallah
      • Presented at: The Ninth International Multifunctional Materials Workshop (MFM- 9) Shimala, India, June 1-5, 2014
  97. Bandgap engineering of SrTiO3 via Al-substitution
    • Authors: A. Posadas, C. Lin, S. Zollner, A.A. Demkov
      • Presented at:  The American Physical Society March meeting, Denver, CO 3-7 March 2014
  98. Epitaxy of polar Semiconductor CoO3 (110): growth, structure, and characterization
    • Authors: K. Kormondy, A. Posadas, A. Slepko, A. Dhamdhere, D. Smith, K. Mitchell, S.Zollner, L. Marshall, J. Zhou, A. Demkov
      • Presented at:  The American Physical Society March meeting, Denver, CO 3-7 March 2014
  99. Thermal Strain Effects in Germaniun Thin Films on Silicon
    • Authors: N.Fernando, A. Ghosh, T. Willett-Gies, C. Nelson, A. Medina, S.C. Xu, J.Menendez, J. Kouvetakis, S. Zollner
      • Presented at: The American Institute of Aeronautics and Astronautics Region IV Student Conference, Albuquerque, NM April 24-26, 2014
  100. Optical Constants of Ni1-xPtx Alloys and Ni1-xPtx -Si Intermetallics
    • Authors: Lina S. Abdallah, Tarek Tawalbeh, Igor Vasiliev, Stefan Zollner
      • Presented at: The ICSE IV 2013 in Kyoto, Japan
  101. Experimental and Theoretical Investigation of Critical Point Energy Shift of Ge Films Grown on Si (100) Substrate due to Strain
    • Authors: Nalin Fernando, Ayana Ghosh, Cayla Nelson, Amber Medina, Seth Chi Xu, Jose Menendez, John Kouvetakis, Stefan Zollner
      • Presented at: American Physical Society Four Corners Section Meeting, Denver, CO, October 18-19 2013
  102. Dynamic Strain Measurements of Ge on Si using Spectroscopic Ellipsometry
    • Authors: N. Fernando, A. Ghosh, C.M. Nelson, A.A. Medina, S.C. Xu, J. Menendez, J. Kouvetakis, and S. Zollner
      • Presented at: Rio Grande Symposium, Albuquerque, NM, 07 October 2013
  103. Infrared Lattice Dynamics of LaAlO3
    • Authors: Travis Willett-Gies, Eric Delong, Stefan Zollner
      • Presented at: The New Mexico Chapter AVS Symposium 2013 in Albuquerque, NM
  104. Optical Properties of Ni1-xPtx Alloys and Ni1-xPtxSi
    • Authors: Lina S. Abdallah, Stefan Zollner, C.Lavoie, A. Ozcan, M. Raymond
      • Presented at: The New Mexico Chapter AVS Symposium 2013 in Albuquerque, NM
  105. Preparation of Abrupt LaAlO3 Surfaces Monitored by Spectroscopic Ellipsometry
    • Authors: Cayla M. Nelson, Maria Spies, Lina S. Abdallah, Travis Willett-Gies, Eric Delong, Stefan Zollner, Yun Xu, Hongmei Luo
      • Presented at: The New Mexico Chapter AVS Symposium 2013 in Albuquerque, NM
  106. Composition Dependence of the Optical Conductivity of NiPt Alloys Determined by Spectroscopic Ellipsometry
    • Authors: Lina S. Abdallah, Tarek Tawalbeh, Igor Vasiliev, Stefan Zollner
      • Presented at: The 2012 AVS 59th International Symposium & Exhibition, Tampa, Florida
  107. Composition Dependence of the Optical Constants of NiPt Alloys Determined by Spectroscopic Ellipsometry
    • Authors: Lina S. Abdallah, Tarek Tawalbeh, Igor Vasiliev, Stefan Zollner
      • Presented at: The Conference for Undergraduate Women in Physical Sciences 2012, University of Nebraska-Lincoln
  108. Temperature Dependence of the Dielectric Function of Germanium by Spectroscopic Ellipsometry
    • Authors: Amber A. Medina, Lina S. Abdallah, Stefan Zollner
      • Presented at:  New Mexico State University, Society of Physics students meeting, 2012

 

Posters

 

  1. Factorized Broad-Band Description of the Dielectric Function Using a Modified Kukharskii Model
    • Authors: Stefan Zollner, Pablo P. Paradis, Farzin Abadizaman, Nuwanjula S. Samarasingha
      • 8th International Conference on Spectroscopic Ellipsometry, Barcelona, Spain, May 26- May 31, 2019
  2. Temperature Dependent Optical and Magneto-Optical Properties and Critical Points of Nickel
    • Authors: Farzin Abadizaman, Stefan Zollner
      • 8th International Conference on Spectroscopic Ellipsometry, Barcelona, Spain, May 26- May 31, 2019
  3. Optical Hall Effect in Te-doped GaSb and undoped InAs
    • Authors: Farzin Abadizaman, Carola Emminger, Sean Knight, Mathias Schubert, Stefan Zollner
      • 8th International Conference on Spectroscopic Ellipsometry, Barcelona, Spain, May 26- May 31, 2019
  4. Ellipsometric characterization of epitaxial metallic oxide SrRuO3 in a wide spectral range
    • Authors: D. Chvostova, T. Kocourek, M. Jelinek, S. Zollner, A. Dejneka, M. Tyunina
      • 8th International Conference on Spectroscopic Ellipsometry, Barcelona, Spain, May 26- May 31, 2019
  5. The Direct Band Gap of α-Sn Investigated by Infrared Ellipsometry
    • Authors: R. A. Carrasco, C.M. Zamarripa, S. Zollner, José Menéndez
      • Presented at: Physics and Chemistry of Surfaces, and Interfaces 46th Conference (PCSI-46) at Santa Fe NM, Jan 13-Jan 17, 2019
  6. Ellipsometry analysis of a germanium-on-insulator wafer
    • Authors: Rigo Carrasco, Nuwanjula Samarasingha, Bich-Yen Nguyen, Stefan Zollner
      • Presented at: AVS 64th International Symposium & Exhibition, Tampa, Florida, October 30 – November 3, 2017
  7. FTIR Ellipsometry Studies of Thermally Grown GeO2 on Ge
    • Authors: Jaime M. Moya, T Nathaniel Nunley, Nuwanjula Samarasingha, and Stefan Zollner
      • Presented at: AVS 63rd International Symposium & Exhibition, Nashville, TN, 6-11 November 2016
  8. Experimental Errors in Mueller Matrix Elements of Isotropic Samples
    • Authors: Farzin Abadizaman, Jaime M. Moya, and Stefan Zollner
      • Presented at: APS Four Corners Section Meeting, Las Cruces, NM, 21-22 October 2016
  9. Band Gap and Infrared-Active Phonons of LSAT
    • Authors: T. N. Nunley, J. A. Cooke, T. Willett-Gies, P. Marsik, C. Bernhard and S. Zollner
      • Presented at: American Vacuum Society NM Chapter, Albuquerque, 2016
  10. Comparison of LiF and NiO crystallographic structure using XRD
    • Authors: J. Moya, N.S. Samarasingha, and S. Zollner
      • Presented at: The National Mentoring Community (NMC) Conference, Miami, FL, October 2015
  11. Determination of the Electronic Structure of Nickel Ferrite Thin Films
    • Authors: Luis A. Barrera, Khadijih N. Mitchell, Lina S. Abdallah, Stefan Zollner, N. Pachauri, Arunava Gupta
      • Presented at: The AVS 2015 New Mexico Symposium, Albuquerque, NM, May 19th, 2015
  12. Dielectric Function of Co3O4 Thin Films from the mid-infrared to the near-UV
    • Authors: S. Zollner, K.N. Mitchell, T.I. Willett-Gies,K.J. Kormondy, A.B. Posadas, A. Slepko, A.A. Demkov
      • Presented at: The Rio Grande Symposium on Advanced Materials, Albuquerque, NM, October 6, 2014
  13. Infrared Lattice Dynamics of Lanthanum Aluminate
    • Authors: Travis Willett-Gies, Eric Delong, Stefan Zollner
      • Presented at: the ICSE IV 2013 in Kyoto, Japan
  14. Determination of the Dielectric Function of Germanium as a Function of Temperature
    • Authors: A.A. Medina, C.M. Nelson, C.A. Acheampong, L.S. Abdallah, S. Zollner
      • Presented at: the ICSE IV 2013 in Kyoto, Japan
  15. Optical Constants of Thin Film Metal Oxides
    • Authors: Cesar A. Rodriguez, Khadijih Mitchell, Stefan Zollner, Travis Willett-Gies, Lina Abdallah
      • Presented at: the New Mexico Chapter AVS Symposium 2013 in Albuquerque, NM
  16. Determination of the dielectric function of germanium as a function of temperature
    • Authors: Amber Medina, Lina S. Abdallah, Stefan Zollner
      • Presented at: the 2012 AVS 59th International Symposium & Exhibition, Tampa, Florida
  17. Compositional dependence of the Optical Conductivity of Ni1-xPtx Alloys (0 < x < 0.25) Determined by Spectroscopic Ellipsometry
    • Authors: Lina S. Abdallah, Tarek Tawalbeh, Igor Vasiliev, Stefan Zollner
      • Presented at: the 2012 APS 4-Corners Section Regional Meeting at New Mexico Tech: Socorro, NM
  18. Infrared Lattice Dynamics of Lanthanum Aluminate
    • Authors: Travis Willett-Gies, Eric Delong, Stefan Zollner, Igal Brener
      • Presented at: the 2012 APS 4-Corners Section Regional Meeting at New Mexico Tech: Socorro, NM
  19. Determination Of RGB Color Coordinates From Spectroscopic Reflectance Measurements
    • Authors: Cesar A. Rodriguez, Cayla Nelson, Lina S. Abdallah, Stefan Zollner
      • Presented at: the 2012 APS 4-Corners Section Regional Meeting at New Mexico Tech: Socorro, NM