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

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

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