Modular design approach for large metasurface-based optical concentrators

Alexander Soibel; Tobias Wenger; Richard Muller; Daniel Wilson; Sarath Gunapala

doi:10.1117/12.2609115

5 March 2022 Modular design approach for large metasurface-based optical concentrators

Alexander Soibel, Tobias Wenger, Richard Muller, Daniel Wilson, Sarath Gunapala

Proceedings Volume PC12010, Photonic and Phononic Properties of Engineered Nanostructures XII; PC120100X (2022) https://doi.org/10.1117/12.2609115
Event: SPIE OPTO, 2022, San Francisco, California, United States

Abstract

We demonstrated a modular design approach for large metasurface-based optical concentrators. In this approach each concentrator is split into a collection of sublens modules. Each sublens module has an off-axis focal point, and this point is located between the concentrator center and the intended detector center. This reduces the necessary deflection angle, thus improving the concentrator design. We designed, fabricated and tested 300-μm-diameter metasurface-based optical concentrators operating in the 3-5 μm MWIR range. The optical concentrators enhanced the measured optical intensity at the intended detector position up to a factor of 6.4, in the future this will improve the signal-to-noise ratio of detectors and increase their operating temperature.

Conference Presentation

Citation Download Citation

Alexander Soibel, Tobias Wenger, Richard Muller, Daniel Wilson, and Sarath Gunapala "Modular design approach for large metasurface-based optical concentrators", Proc. SPIE PC12010, Photonic and Phononic Properties of Engineered Nanostructures XII, PC120100X (5 March 2022); https://doi.org/10.1117/12.2609115

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