Optical characteristics of micro Fresnel lens for high-density memory system

Tetsuo Maeda; Shiro Ogata; Koichi Imanaka

doi:10.1117/12.22018

1 August 1990 Optical characteristics of micro Fresnel lens for high-density memory system

Tetsuo Maeda, Shiro Ogata, Koichi Imanaka

Proceedings Volume 1316, Optical Data Storage; (1990) https://doi.org/10.1117/12.22018
Event: Optical Data Storage, 1990, Vancouver, Canada

Abstract

We have proposed a novel optical memory system, that is, multilayered optical storage system utilizing a micro Fresnel lens (MFL). The multiwavelength laser light through the MFL is focused on the point where the surface of each layer is laid, since the MFL focal length depends on the incident laser wavelength. We discussed and demonstrated the dependences of MFL's characteristics such as wavefront aberration, focal length, and focused beam spot size on the incident laser wavelength.

Citation Download Citation

Tetsuo Maeda, Shiro Ogata, and Koichi Imanaka "Optical characteristics of micro Fresnel lens for high-density memory system", Proc. SPIE 1316, Optical Data Storage, (1 August 1990); https://doi.org/10.1117/12.22018

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