Paper
25 August 2005 Infrared hybrid optics with high broadband efficiency
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Abstract
Hybrid refractive-diffractive optics are widely used in infrared systems, but their performance is limited by reduced diffraction efficiency away from the design wavelength. Two techniques are currently being investigated to improve broadband efficiency; dual-layer blaze structures and blazed-binary optics. This paper discusses the design of dual-layer blaze structures in detail, and presents some athermalised lenses which benefit from this approach. A brief summary of using blazed-binary structures to improve efficiency is presented.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Andrew Wood, Mane-Si Laure Lee, and Simone Cassette "Infrared hybrid optics with high broadband efficiency", Proc. SPIE 5874, Current Developments in Lens Design and Optical Engineering VI, 58740G (25 August 2005); https://doi.org/10.1117/12.614568
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Cited by 15 scholarly publications.
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KEYWORDS
Diffraction

Germanium

Long wavelength infrared

Refractive index

Modulation transfer functions

Infrared radiation

Manufacturing

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