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Proceedings Article

Fabrication and testing of a GaP SIL with NA=2.64

[+] Author Affiliations
Jun Zhang, Matt Lang, Tom D. Milster, Tao Chen, Eric Aspnes

College of Optical Science, The Univ. of Arizona

Bernard Bell

InPhase Technologies

Proc. SPIE 6620, Optical Data Storage 2007, 66201Z (July 11, 2007); doi:10.1117/12.738940
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From Conference Volume 6620

  • Optical Data Storage 2007
  • Bernard Bell; Takeshi Shimano
  • Portland, OR | May 20, 2007

abstract

A solid immersion lens (SIL) is described with NA = 2.64 that is fabricated from a two-step process using a large BK7 glass hemisphere and a small GaP hemisphere. The Gallium Phosphide (GaP) hemisphere has a radius 114μm, and is cemented in the center of BK7 SIL with index-matching epoxy. The BK7 SIL thickness is accommodated to have both BK7 SIL and GaP SIL in an image centric configuration. The two-step GaP SIL is tested on an induced polarization imaging system. Induced polarization pupil images, the native polarization image and induced polarization image of a DVD RW sample are given in this paper.

© (2007) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Jun Zhang ; Matt Lang ; Tom D. Milster ; Tao Chen ; Eric Aspnes, et al.
"Fabrication and testing of a GaP SIL with NA=2.64", Proc. SPIE 6620, Optical Data Storage 2007, 66201Z (July 11, 2007); doi:10.1117/12.738940; http://dx.doi.org/10.1117/12.738940


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