Étendue-matched photonic structures for laser and electro-luminescent cooling

Parthiban Santhanam; Aaswath P. Raman; Jae S. Hwang; David Abraham

doi:10.1117/12.2650795

17 March 2023 Étendue-matched photonic structures for laser and electro-luminescent cooling

Parthiban Santhanam, Aaswath P. Raman, Jae S. Hwang, David Abraham

Proceedings Volume PC12437, Photonic Heat Engines: Science and Applications V; PC1243702 (2023) https://doi.org/10.1117/12.2650795
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

Photonic coolers, including both electrically- and laser-driven devices, seek to transport entropy away from a solid body using the photon field. Since more entropy can be carried per unit energy when photon mode occupation is more dilute, cooling is more thermodynamically efficient in this case. We discuss the opportunity for more efficient photonic cooling afforded by the large étendue associated with high index semiconductors and the associated challenge of étendue-matching along the photon extraction optical path. We will discuss both fundamental considerations and constraints imposed by the growth and fabrication of high quantum efficiency light-emitting materials and their substrates.

Conference Presentation

Citation Download Citation

Parthiban Santhanam, Aaswath P. Raman, Jae S. Hwang, and David Abraham "Étendue-matched photonic structures for laser and electro-luminescent cooling", Proc. SPIE PC12437, Photonic Heat Engines: Science and Applications V, PC1243702 (17 March 2023); https://doi.org/10.1117/12.2650795

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