Xianli Lang, Desen Liu, Tao Lv, Xiaoping Jiang. Aberration improvement of gradient index rod lens[J]. Chinese Optics Letters, 2005, 3(3): 03152
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The aberration of gradient index (GRIN) rod lenses induced by deviation from the ideal refractive index distribution is decreased by optimized thermal diffusion. The index distribution coefficients are estimated by a novel method. The lenses' heat treatment process and aberration testing system are described.