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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 13, Iss. 12 — Dec. 1, 1988
  • pp: 1141–1143

Formation of negative-index-change waveguide lenses in LiNbO3 by using ion milling

T. Q. Vu, J. A. Norris, and C. S. Tsai  »View Author Affiliations


Optics Letters, Vol. 13, Issue 12, pp. 1141-1143 (1988)
http://dx.doi.org/10.1364/OL.13.001141


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Abstract

We report, for the first time to our knowledge, fabrication of two types of negative-index-change waveguide lens in LiNbO3 by using ion milling. The first type is an analog Fresnel lens formed by grooves milled into the waveguide. The second is a hybrid lens that combines analog Fresnel zones in the central region with chirp gratings on the sides formed by the same means. We have obtained simultaneously high-efficiency and near-diffraction-limited focusing characteristics in both types of lens. The ion-milling technique employed should be capable of producing similar lenses in any other waveguide substrate, such as GaAs.

© 1988 Optical Society of America

History
Original Manuscript: June 21, 1988
Manuscript Accepted: September 15, 1988
Published: December 1, 1988

Citation
T. Q. Vu, J. A. Norris, and C. S. Tsai, "Formation of negative-index-change waveguide lenses in LiNbO3 by using ion milling," Opt. Lett. 13, 1141-1143 (1988)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-13-12-1141

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