High-efficiency all-dielectric strip-coated beam splitters for the equipartition of infrared input power

Aed M. El-Saba; Rasheed M. A. Azzam

doi:10.1117/12.406631

15 November 2000 High-efficiency all-dielectric strip-coated beam splitters for the equipartition of infrared input power

Aed M. El-Saba, Rasheed M. A. Azzam

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Proceedings Volume 4133, Polarization Analysis, Measurement, and Remote Sensing III; (2000) https://doi.org/10.1117/12.406631
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

Abstract

We describe efficient beam splitters for the equi-partition of infrared input power using combined reflection and transmission by a strip-coated all-dielectric slab. Because no metal coating is used, high efficiency is achieved. The beam splitters use a fused silica parallel-slab that is strip coated with germanium on the front and back sides. Specific designs for operation at 1.55, 2.02 and 5.0 µm wavelengths are presented.

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Aed M. El-Saba and Rasheed M. A. Azzam "High-efficiency all-dielectric strip-coated beam splitters for the equipartition of infrared input power", Proc. SPIE 4133, Polarization Analysis, Measurement, and Remote Sensing III, (15 November 2000); https://doi.org/10.1117/12.406631

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KEYWORDS

Reflectivity

Beam splitters

Coating

Germanium

Infrared radiation

Refraction

Metals

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