External cavity lasers based on wide-angle multifunctional metasurfaces

Christina Spaegele; Michele Tamagnone; Dmitry Kazakov; Marcus Ossiander; Marco Piccardo; Federico Capasso

doi:10.1117/12.2594753

1 August 2021 External cavity lasers based on wide-angle multifunctional metasurfaces

Christina Spaegele, Michele Tamagnone, Dmitry Kazakov, Marcus Ossiander, Marco Piccardo, Federico Capasso

Proceedings Volume 11795, Metamaterials, Metadevices, and Metasystems 2021; 1179519 (2021) https://doi.org/10.1117/12.2594753
Event: SPIE Nanoscience + Engineering, 2021, San Diego, California, United States

Abstract

Metasurfaces are a promising platform to exceed their traditional counterparts not only in compactness but also for functionality. However, current designs are limited when trying to implement multiple, non-paraxial functions with a single metasurface as they are bound to either a small angular range or to low efficiencies. Here, we present a new non-local metasurface design that enables the implementation of multiple, independent functions with a large difference in deflection angle. We further demonstrate the capabilities of this approach for advanced control of light emission systems by creating a wavelength-tunable external cavity laser with holographic output based on such metasurface.

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Citation Download Citation

Christina Spaegele, Michele Tamagnone, Dmitry Kazakov, Marcus Ossiander, Marco Piccardo, and Federico Capasso "External cavity lasers based on wide-angle multifunctional metasurfaces", Proc. SPIE 11795, Metamaterials, Metadevices, and Metasystems 2021, 1179519 (1 August 2021); https://doi.org/10.1117/12.2594753

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KEYWORDS

Paraxial approximations

Fourier optics

Holography

Optical design

Semiconductor lasers

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