Fabrication and testing of a GaP SIL with NA=2.64

Jun Zhang; Matt Lang; Tom D. Milster; Tao Chen; Eric Aspnes; Bernard Bell

doi:10.1117/12.738940

11 July 2007 Fabrication and testing of a GaP SIL with NA=2.64

Jun Zhang, Matt Lang, Tom D. Milster, Tao Chen, Eric Aspnes, Bernard Bell

Author Affiliations +

Proceedings Volume 6620, Optical Data Storage 2007; 66201Z (2007) https://doi.org/10.1117/12.738940
Event: Optical Data Storage 2007, 2007, Portland, OR, United States

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.

Citation Download Citation

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

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