Fourier modal method applied to the electric field calculation for groove-only recording media

Kimihiro Saito; Yutaka Kasami; Yuji Kuroda; Osamu Kawakubo; Masanobu Yamamoto

doi:10.1117/12.453379

10 January 2002 Fourier modal method applied to the electric field calculation for groove-only recording media

Kimihiro Saito, Yutaka Kasami, Yuji Kuroda, Osamu Kawakubo, Masanobu Yamamoto

Proceedings Volume 4342, Optical Data Storage 2001; (2002) https://doi.org/10.1117/12.453379
Event: Optical Data Storage, 2001, Santa Fe, NM, United States

Abstract

We describe a FMM (Fourier Modal Method) based rigorous vector diffraction method that can be applied to trapezoidal groove structures. Applying this method to the calculation of the electric field on the surface of the recording layer for DVR groove-only recording media, we found a significant difference of the electric field distributions between two recording schemes, one when the light spot is focused on-groove, the other when it is focused in-groove. These calculation results clearly explained the measured differences of the recording power sensitivities and the cross-writing characteristics between the two schemes.

Citation Download Citation

Kimihiro Saito, Yutaka Kasami, Yuji Kuroda, Osamu Kawakubo, and Masanobu Yamamoto "Fourier modal method applied to the electric field calculation for groove-only recording media", Proc. SPIE 4342, Optical Data Storage 2001, (10 January 2002); https://doi.org/10.1117/12.453379

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