Polarization analyses of readout signals by a solid immersion lens in phase change recording material

Chung-Hao Tien; YinChieh Lai; Han-Ping D. Shieh

doi:10.1117/1.1399284

1 October 2001 Polarization analyses of readout signals by a solid immersion lens in phase change recording material

Chung-Hao Tien, YinChieh Lai, Han-Ping D. Shieh

Optical Engineering, Vol. 40, Issue 10, (October 2001). https://doi.org/10.1117/1.1399284

Comprehensive analyses based on the rigorous vector diffraction theory were used to simulate the polarized readout signals using a solid immersion lens (SIL) in reading phase change (PC) disks. For an x-polarized incident beam, the signal contrast in x and y polarization was a different function of air gap between the bottom surface of the SIL and recording medium. Compared with conventional nonpolarized detection schemes for PC media, the x-polarized contrast is a factor 1.0 to 1.35 higher at different air gaps, at a small cost of total intensity loss.

©(2001) Society of Photo-Optical Instrumentation Engineers (SPIE)

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Chung-Hao Tien, YinChieh Lai, and Han-Ping D. Shieh "Polarization analyses of readout signals by a solid immersion lens in phase change recording material," Optical Engineering 40(10), (1 October 2001). https://doi.org/10.1117/1.1399284

Published: 1 October 2001

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