Previous work developed a first-order theory for picking optimal pairs of materials for gradient index (GRIN) achromatic singlets. This work extends that concept to include the addition of a third material to a GRIN blend, to improve performance further. Several ternary-based GRIN lens designs are compared to binary versions. Implications for material development in gradient index optics are discussed.
G. Beadie, J. Mait, R. A. Flynn, and P. Milojkovic, "Ternary versus binary material systems for gradient index optics," Proc. SPIE 10181, Advanced Optics for Defense Applications: UV through LWIR II, 1018108 (Presented at SPIE Defense + Security: April 09, 2017; Published: 11 May 2017); https://doi.org/10.1117/12.2264469.
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