17 May 2016 ALON GRIN optics for visible-MWIR applications
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Abstract
Surmet continuously strives to develop novel, advanced optical ceramics products for current and future defense and commercial systems. Using conventional powder processing techniques, Surmet has made substantial progress in its ability to manufacture large ALON® sensor windows, lenses, domes and transparent armor. In addition to transparency, Surmet has demonstrated the ability to incorporate other capabilities into its optical ceramic components, including: EMI shielding, heating, internal antennas and cooling channels. Working closely with the University of Rochester, Surmet has developed gradient index (GRIN) optics in ALON for use in the visible through the MWIR applications. Surmet has demonstrated the ability to tailor the refractive index of ALON® Optical Ceramic by either varying its composition or through the addition of dopants. Smooth axial and radial gradient profiles with ~0.055 change in refractive index, over depths of 1-8 mm (axial) and over 20 mm radius (radial) have been demonstrated. Initial design studies have shown that such elements provide unique capabilities. Radial gradients in particular, with their optical power contribution, provide additional degrees of freedom for color correction in broadband imaging systems. Surmet continues to mature ALON® GRIN technology along with the associated metrology. Surmet is committed to the development of its ALON® GRIN capability as well as finding insertion opportunities in novel imaging solutions for military and other commercial systems.
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Nagendra Nag, Nagendra Nag, Santosh Jha, Santosh Jha, Suri Sastri, Suri Sastri, Lee M. Goldman, Lee M. Goldman, Peter McCarthy, Peter McCarthy, Greg R. Schmidt, Greg R. Schmidt, Julie L. Bentley, Julie L. Bentley, Duncan T Moore, Duncan T Moore, } "ALON GRIN optics for visible-MWIR applications", Proc. SPIE 9822, Advanced Optics for Defense Applications: UV through LWIR, 98220V (17 May 2016); doi: 10.1117/12.2224961; https://doi.org/10.1117/12.2224961
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