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Conferences > CLEO_SI > 2017 > SW1C > SW1C.1

Focusing Metasurface Quantum-Cascade VECSEL

Luyao Xu, Christopher A. Curwen, Daguan Chen, Tatsuo Itoh, John L. Reno, and Benjamin S. Williams

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Abstract

A terahertz quantum-cascade vertical-external-cavity surface-emitting laser (VECSEL) is demonstrated using an active focusing metasurface. This enables a hemispherical cavity with flat optics, which exhibits an excellent beam pattern and higher stability than a plano-plano cavity.

© 2017 Optical Society of America

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