Temperature-dependent optical properties of materials for light-sail applications (Conference Presentation)

Demeng Feng; Shenwei Yin; Gabriel R Jaffe; Gregory R. Holdman; Tanuj Kumar; Joel F. Siegel; Merlin Mah; Phyo Lin; Min Seok Jang; Joseph Talghader; Victor W. Brar; Mikhail A. Kats

doi:10.1117/12.2632417

3 October 2022 Temperature-dependent optical properties of materials for light-sail applications (Conference Presentation)

Demeng Feng, Shenwei Yin, Gabriel R Jaffe, Gregory R. Holdman, Tanuj Kumar, Joel F. Siegel, Merlin Mah, Phyo Lin, Min Seok Jang, Joseph Talghader, Victor W. Brar, Mikhail A. Kats

Author Affiliations +

Proceedings Volume PC12195, Metamaterials, Metadevices, and Metasystems 2022; PC1219515 (2022) https://doi.org/10.1117/12.2632417
Event: SPIE Nanoscience + Engineering, 2022, San Diego, California, United States

Abstract

Laser-driven light sails need to withstand very high intensities of incident light, and therefore must comprise low-loss materials that remain low loss with increasing temperatures. We will describe our measurements of temperature-dependent optical properties of materials (oxides, nitrides, semiconductors) for the development of metasurfaces for laser-driven light sails. We use oscillator-based models to fit ellipsometry data at different temperatures in the wavelength region where a precise measurement can be made, and revise these models with datapoints in the low-absorption region measured using photo-thermal common-path interferometry. We also demonstrate how metasurface performance is affected by the temperature-dependent properties of constituent materials.

Conference Presentation

Citation Download Citation

Demeng Feng, Shenwei Yin, Gabriel R Jaffe, Gregory R. Holdman, Tanuj Kumar, Joel F. Siegel, Merlin Mah, Phyo Lin, Min Seok Jang, Joseph Talghader, Victor W. Brar, and Mikhail A. Kats "Temperature-dependent optical properties of materials for light-sail applications (Conference Presentation)", Proc. SPIE PC12195, Metamaterials, Metadevices, and Metasystems 2022, PC1219515 (3 October 2022); https://doi.org/10.1117/12.2632417

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