Fully transparent gallium nitride/indium gallium nitride LED as a position sensitive detector

Christine McGinn; Qingyuan Zeng; Keith Behrman; Vikrant Kumar; Ioannis Kymissis

doi:10.1117/12.2692143

9 March 2024 Fully transparent gallium nitride/indium gallium nitride LED as a position sensitive detector

Christine McGinn, Qingyuan Zeng, Keith Behrman, Vikrant Kumar, Ioannis Kymissis

Proceedings Volume PC12886, Gallium Nitride Materials and Devices XIX; PC128861B (2024) https://doi.org/10.1117/12.2692143
Event: SPIE OPTO, 2024, San Francisco, California, United States

Abstract

There is a need in commercial imaging technologies for an accurate, solar blind, in-situ beam locator to ensure laser alignment during operation. In this work, fully transparent gallium nitride LED is fabricated and characterized as a two-dimensional position sensitive detector (PSD). Fabricated devices are shown to successfully and repeatably locate 405 nm laser light in two dimensions in the PSD area. These devices then can provide real time spatial light information in advanced imaging technologies for ensuring accurate laser alignment without affecting the system’s operation.

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Citation Download Citation

Christine McGinn, Qingyuan Zeng, Keith Behrman, Vikrant Kumar, and Ioannis Kymissis "Fully transparent gallium nitride/indium gallium nitride LED as a position sensitive detector", Proc. SPIE PC12886, Gallium Nitride Materials and Devices XIX, PC128861B (9 March 2024); https://doi.org/10.1117/12.2692143

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KEYWORDS

Gallium nitride

Light emitting diodes

Gallium

Anodes

Imaging technologies

Equipment

Industrial applications

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