OPTICS & PHOTONICS International Congress 2024

Presentation information

LSC2024 » Oral Presentation

New materials, techniques, and theory (1)

Thu. Apr 25, 2024 3:25 PM - 5:25 PM 421 (Pacifico Yokohama Conference Center)

Session Chair: Kosuke Fujiwara (National Institutes for Quantum Science and Technology)

4:25 PM - 4:45 PM

[LSC6-04(Invited)] Band structure modification through high pressure application for tunable luminescence in fluoride crystals

*Marilou Cadatal Raduban1,2, Luong Viet Mui3, Masahiro Yamashita2, Yuki Shibazaki4, Nobuhiko Sarukura2,5, Kohei Yamanoi2 (1. Centre for Theoretical Chemistry and Physics, Massey University, 2. Institute of Laser Engineering, Osaka University, 3. Graduate School of Engineering, Osaka University, 4. Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), 5. New Industry Creation Hatchery Center (NICHe), Tohoku University)

Fast decay emission from cross-luminescence (CL) in wide band gap fluoride crystals are in the vacuum ultraviolet (VUV) wavelength region. The ability to shift VUV luminescence to UV will enable easier detection of the fast emission. Uniform volume compression through hydrostatic high-pressure applications decreases the energy gap between the valence and core bands of KMgF and BaF crystals, potentially shifting their CL emission from 200nm (VUV) to 300nm (UV).

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