Understanding Optical Phenomena Associated with Defects

Presentations

• Defect Behavior in Hexagonal Boron Nitride (h-BN) under Strain

  Oral-In-person

  March 20, 2026, 8:00 AM – March 20, 2026, 8:12 AM

  Presenters

  • Pragya Agnihotri

    • University of Delaware

  Authors

  • Pragya Agnihotri

    • University of Delaware

  • Anderson Janotti

    • University of Delaware

  • Ramiro dos Santos

    • University of Delaware

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• Trap-assisted nonradiative recombination at Cr impurities in GaN

  Oral-In-person

  March 20, 2026, 8:12 AM – March 20, 2026, 8:24 AM

  Presenters

  • BaiQing Zhao

    • University of California, Santa Barbara

  Authors

  • BaiQing Zhao

    • University of California, Santa Barbara

  • Mark Turiansky

    • United States Naval Research Laboratory

  • Chris Van de Walle

    • University of California, Santa Barbara

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• Majority site enhancement and increased homogeneity of europium emission in delta-doped gallium nitride

  Oral-In-person

  March 20, 2026, 8:24 AM – March 20, 2026, 8:36 AM

  Presenters

  • Amelia Klein

    • University of Pennsylvania

  Authors

  • Amelia Klein

    • University of Pennsylvania

  • Hayley Austin

    • Lehigh University

  • Fumikazu Murakami

  • Jamie Ford

  • Jun Tatebayashi

  • Masayoshi Tonouchi

  • Yasufumi Fujiwara

    • Osaka University

  • Volkmar Dierolf

    • Lehigh University

  • Lee Bassett

    • University of Pennsylvania

  • Brandon Mitchell

    • West Chester University/Physics

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• Persistent optical phenomena in oxide semiconductors

  Invited-In-person · Invited

  March 20, 2026, 8:36 AM – March 20, 2026, 9:12 AM

  Publication: [1] M.M. Santillan, I. Chatratin, A. Janotti, and M.D. McCluskey, Room temperature persistent photoconductivity of KTaO3 single crystals, Phys. Rev. Materials 8, L111601:1-5 (2024).
  [2] J. Jesenovec, C. Pansegrau, M.D. McCluskey, J.S. McCloy, T.D. Gustafson, L.E. Halliburton, and J.B. Varley, Persistent room temperature photodarkening in Cu-doped β-Ga2O3, Phys. Rev. Lett. 128, 077402:1-6 (2022).

  Presenters

  • Matthew McCluskey

    • Washington State University

  Authors

  • Matthew McCluskey

    • Washington State University

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• Room Temperature Photodarkening and Recovery of BaGa₄Se_7 Crystal

  Oral-In-person

  March 20, 2026, 9:12 AM – March 20, 2026, 9:24 AM

  Presenters

  • Abhilipsa Barik

    • Washington State University

  Authors

  • Abhilipsa Barik

    • Washington State University

  • Matthew McCluskey

    • Washington State University

  • Jani Jesenovec

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• Interplay of Dynamic Defects and Ultrafast Carrier Dynamics in Lead-Free Double Oxide Perovskites Toward Stable, High-Performance Photovoltaics

  Oral-In-person

  March 20, 2026, 9:24 AM – March 20, 2026, 9:36 AM

  Presenters

  • Manasa Basavarajappa

    • Harish-Chandra Research Institute

  Authors

  • Manasa Basavarajappa

    • Harish-Chandra Research Institute

  • Arijeet Sarangi

    • Harish-Chandra Research Institute

  • Sudip Chakraborty

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• Hydrogen defects and band alignment in metal-organic frameworks

  Oral-In-person

  March 20, 2026, 9:36 AM – March 20, 2026, 9:48 AM

  Presenters

  • Khang Hoang

    • North Dakota State University

  Authors

  • Khang Hoang

    • North Dakota State University

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• Visualizing the nucleation of InN from arrays of In/In₂O₃ core/shell nanostructures

  Oral-In-person

  March 20, 2026, 9:48 AM – March 20, 2026, 10:00 AM

  Publication: McKenna, H.D.L., Chen, X., Xi, Z., Liu, A., Huang, C., Li, M., Zakharov, D.N., Yang, J. C., Qi, L., Goldman, R. S. Visualizing the nucleation of InN from arrays of In/In2O3 core/shell structures. [Manuscript in preparation]

  Presenters

  • Hailey McKenna

    • University of Michigan

  Authors

  • Hailey McKenna

    • University of Michigan

  • Xiaobo Chen

  • Zhucong Xi

  • Abby Liu

    • University of Michigan

  • Catherine Huang

    • University of Michigan Ann Arbor

  • Meng Li

  • Dmitri Zakharov

  • Judith Yang

    • Brookhaven National Laboratory (BNL)

  • Liang Qi

  • Rachel Goldman

    • University of Michigan

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• Microscopic origins of decoherence in Er³⁺:TiO₂/III–V semiconductor hybrid structures

  Oral-In-person

  March 20, 2026, 10:00 AM – March 20, 2026, 10:12 AM

  Presenters

  • Syed Hassan Abbas Bukhari

    • University of Iowa

  Authors

  • Syed Hassan Abbas Bukhari

    • University of Iowa

  • Henry Hammer

    • University of Iowa

  • Yogendra Limbu

    • University of Iowa

  • Michael Flatté

    • University of Iowa

  • Durga Paudyal

    • University of Iowa

  • Ravitej Uppu

    • University of Iowa

  • Denis Candido

    • University of Iowa

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• Long-lived SiV⁻ center induced by nanosecond high-voltage pulse discharge

  Oral-In-person

  March 20, 2026, 10:12 AM – March 20, 2026, 10:24 AM

  Publication: 1. Helen Highland, Yifan Song, Sina Ilkhani, Emmalyn Song, Sizhe Weng, Stephen B. Cronin,* and Susumu Takahashi, submitted (2025).

  Presenters

  • Helen Highland

    • University of Southern California

  Authors

  • Helen Highland

    • University of Southern California

  • Yifan Song

    • University of Southern California

  • Sina Ilkhani

  • Emmalyn Song

  • Sizhe Weng

    • University of Southern California

  • Susumu Takahashi

    • University of Southern California

  • Stephen Cronin

    • University of Southern California

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• Optical absorption spectra of the T-Center defect in Silicon computed via the BSE@GW@PBE approach

  Oral-In-person

  March 20, 2026, 10:24 AM – March 20, 2026, 10:36 AM

  Presenters

  • Bradford Barker

    • Flo

  Authors

  • Bradford Barker

    • Flo

  • Kevin Nangoi

  • Chris Van de Walle

    • University of California, Santa Barbara

  • David Strubbe

    • University of California, Merced

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• High-Performance Computing Simulations for Optical Multidimensional Coherent Spectroscopy Studies of Strained Silicon-Vacancy Centers in Diamond

  Oral-In-person

  March 20, 2026, 10:36 AM – March 20, 2026, 10:48 AM

  Publication: [1] C. L. Smallwood et al., Phys. Rev. Lett. 126, 213601 (2021).
  [2] K. Narayan, J. M. Villar, C. L. Smallwood, APS March Meeting, Abstract C09.11 (2025).
  [3] C. L. Smallwood, T. W. Chin, and K. M. Bates, APS March Meeting, Abstract M39.01 (2023).

  Presenters

  • IMRAN BASHIR

    • San Jose State University

  Authors

  • IMRAN BASHIR

    • San Jose State University

  • Kesav Narayan

    • San Jose State University

  • Liam Stanton

    • San Jose State University

  • Ehsan Khatami

    • San Jose State University

  • Christopher Smallwood

    • San Jose State University

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• Ab initio study of the internal conversion processes in solid-state spin defects

  Oral-In-person

  March 20, 2026, 10:48 AM – March 20, 2026, 11:00 AM

  Publication: [1] S.P. Villani et al., in preparation

  Presenters

  • Stefano Paolo Villani

    • University of Chicago - PME

  Authors

  • Stefano Paolo Villani

    • University of Chicago - PME

  • Yu Jin

    • Flatiron Institute

  • Giulia Galli

    • University of Chicago

  View abstract →