Broadband beam steering using chalcogenide-based Risley prisms

Catalin Florea; Jasbinder S. Sanghera; Ishwar D. Aggarwal

doi:10.1117/1.3551503

1 March 2011 Broadband beam steering using chalcogenide-based Risley prisms

Catalin Florea, Jasbinder S. Sanghera, Ishwar D. Aggarwal

Author Affiliations +

Optical Engineering, Vol. 50, Issue 3, 033001 (March 2011). https://doi.org/10.1117/1.3551503

Abstract

In this paper, we propose using chalcogenide glasses for improved, large-angle, beam steering of infrared radiation, with minimal spectral dispersion and improved thermal performance over wavelength intervals covering the 2 to 12-μm range. For example, we evaluate that full-angle dispersion in the 2 to 5 μm region for LiF/As₂S₃ combination should be three times smaller than in the case of LiF/ZnS combination. We also evaluate that using the ZnSe/As₂Se₃ combination will provide twice as small thermal walk-off than a similar ZnS/Ge system in the 8 to 12-μm region.

©(2011) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Catalin Florea, Jasbinder S. Sanghera, and Ishwar D. Aggarwal "Broadband beam steering using chalcogenide-based Risley prisms," Optical Engineering 50(3), 033001 (1 March 2011). https://doi.org/10.1117/1.3551503

Published: 1 March 2011

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