二元光学元件和新型超分辨光盘读写头的设计研究  

A BINARY OPTICAL ELEMENT AND SUPERRESOLUTION IN AN OPTICAL DISK HEAD

作　　者：林敏[1] 黄建军[1] 李景镇[1] 

机构地区：[1]深圳大学光电子系,深圳518060

出　　处：《光子学报》2001年第3期321-324,共4页Acta Photonica Sinica

摘　　要：本文采用杨 -顾相位恢复算法数值模拟设计了一个用于光盘读写头的二元光学元件 ,并构思了一种新型超分辨光盘读写头 ,在现有光盘读写头的激光波长处和数值孔径基础上 ,利用该二元光学元件实现光学超分辨 ,从而提高光盘存储容量 .Binary optical element (BOE) used for an optical disk head is simulated numerically based Yand Gu phase retrieval algorithm.A new optical disk head using an optical superresolution technique is proposed.With the designed BOE,the optical disk head using the currently available laser as a light source and a normal N.A.objective lens can realize optical superresolution.The recording density in an optical disk memory system is improved.

关 键 词：光学超分辨 光盘读写头 相位恢复 二元光学元件 设计 

分 类 号：TN202[电子电信—物理电子学] TP333.4[自动化与计算机技术—计算机系统结构]