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Applied Optics

Applied Optics


  • Vol. 27, Iss. 3 — Feb. 1, 1988
  • pp: 496–499

Gradient-index rod lens made by a double ion-exchange process

S. Ohmi, H. Sakai, Y. Asahara, S. Nakayama, Y. Yoneda, and T. Izumitani  »View Author Affiliations

Applied Optics, Vol. 27, Issue 3, pp. 496-499 (1988)

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Gradient-index rod lenses with a parabolic-index profile have been fabricated by a double Na–Ag ion-exchange process, and their optical characteristics have been evaluated. The numerical aperture and minimum focused spot diameter of the 2-mm diam rod lens were 0.58 and 2.5 μm for λ = 0.63 μm, respectively. Because of the high diffusing rate for Ag ions, this technique offers the possibility of making large-sized (larger than 10 mm-diam) rod lenses for photographic uses.

© 1988 Optical Society of America

Original Manuscript: March 24, 1987
Published: February 1, 1988

S. Ohmi, H. Sakai, Y. Asahara, S. Nakayama, Y. Yoneda, and T. Izumitani, "Gradient-index rod lens made by a double ion-exchange process," Appl. Opt. 27, 496-499 (1988)

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