New GRIN lens with high N.A.

T. Yamagishi; K. Fujii; I. Kitano

doi:10.1364/CLEO.1982.WN3

Conference on Lasers and Electro-Optics
OSA Technical Digest (Optica Publishing Group, 1982),
paper WN3
•https://doi.org/10.1364/CLEO.1982.WN3

New GRIN lens with high N.A.

T. Yamagishi, K. Fujii, and I. Kitano

Conference on Lasers and Electro-Optics 1982

Phoenix, Arizona United States
14–16 April 1982
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Optical Storage: 2 (WN)

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T. Yamagishi, K. Fujii, and I. Kitano, "New GRIN lens with high N.A.," in Conference on Lasers and Electro-Optics, R. Abrams and A. Guenther, eds., OSA Technical Digest (Optica Publishing Group, 1982), paper WN3.

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Abstract

A gradient-index rod lens (Selfoc) with high N.A. has been fabricated by means of a new ion-exchange technique. In the conventional ion-exchange method, a nearly parabolic distribution of the refractive index is formed by exchanging highly polarizable ions doped in the glass for the alkali ions in the fused salt.

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