Dependence of Signals from Embossed Recording Fields and Grooves on Filling of Aperture of Objective Lens

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Copyright (c) 1996 The Japan Society of Applied Physics
, , Citation Hideharu Takeshima Hideharu Takeshima and Hidemi Yoshida Hidemi Yoshida 1996 Jpn. J. Appl. Phys. 35 384 DOI 10.1143/JJAP.35.384

1347-4065/35/1S/384

Abstract

The dependence of signals from embossed recording fields and grooves on the filling of the aperture of the objective lens was studied using a simulation based on a scalar diffraction method. The results indicated that this dependence is too large to ignore and consequently, the difference in the filling D/W between testers should be considered for the correlation between testers.

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10.1143/JJAP.35.384