Strong coupling between exciton and superscar mode in ultraviolet emitting GaN triangular structure

Yong-Hoon Cho; Chang Young Sung

doi:10.1117/12.2680603

5 October 2023 Strong coupling between exciton and superscar mode in ultraviolet emitting GaN triangular structure

Yong-Hoon Cho, Chang Young Sung

Proceedings Volume PC12652, UV and Higher Energy Photonics: From Materials to Applications 2023; PC1265203 (2023) https://doi.org/10.1117/12.2680603
Event: SPIE Nanoscience + Engineering, 2023, San Diego, California, United States

Abstract

GaN is a promising material for studying exciton-polaritons at room temperature due to its large exciton binding energy and high oscillator strength. In this study, we present a new approach to fabricating triangular GaN structures by selective area growth method using metal organic chemical vapor deposition that enables the observation of superscar mode polaritons. The superscar mode is an optical cavity mode found in polygonal structures that has a longer optical path and higher quality factors compared to the whispering gallery mode. We conducted angle-resolved micro-photoluminescence with varying excitation power to investigate the processes of polariton formation and condensation.

Conference Presentation

Citation Download Citation

Yong-Hoon Cho and Chang Young Sung "Strong coupling between exciton and superscar mode in ultraviolet emitting GaN triangular structure", Proc. SPIE PC12652, UV and Higher Energy Photonics: From Materials to Applications 2023, PC1265203 (5 October 2023); https://doi.org/10.1117/12.2680603

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