3-D Light Distribution Within The Focused Spot By Large Aperture Objectives For Optical Data Storage

Ruan Yu; Wang Congjun; Lu Naiguang

doi:10.1117/12.967341

1 January 1987 3-D Light Distribution Within The Focused Spot By Large Aperture Objectives For Optical Data Storage

Ruan Yu, Wang Congjun, Lu Naiguang

Proceedings Volume 0813, Optics and the Information Age; (1987) https://doi.org/10.1117/12.967341
Event: 14th Congress of the International Commission for Optics, 1987, Quebec, Canada

Abstract

Since its emergence in early 1970s, optical disk has been playing a main role in data storage. The most attractive features of the optical disk such as high information density and large storage capacity are all made possible by the large aperture recording objective. As the aperture of the objective increases, however, one problem arises in studying the exact light distribution within the focused spot--the conventional scalar diffraction theory would introduce intolerable error to the results. Therefore, the vectorial properties of light must be taken into consideration. For this purpose, we developed 3-D optical diffraction integrals for focusing optical systems with a different method from those used by H. Hopkinsl) AND B. Richards and E. Wolf2). This method is simple and has proved effective in dealing with systems with and without aberrations.

Citation Download Citation

Ruan Yu, Wang Congjun, and Lu Naiguang "3-D Light Distribution Within The Focused Spot By Large Aperture Objectives For Optical Data Storage", Proc. SPIE 0813, Optics and the Information Age, (1 January 1987); https://doi.org/10.1117/12.967341

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