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全息数据存储系统很久已有大存储容量、短存取时间和高数据传输率的希望。诸如铌酸锂(LiNbO3)之类光折变材料可在适中激光功率下用于全息图记录(图1)。图1 数字全息记录光装置。晶体绕垂直轴转180°,可实现相位共轭读出。其中CCD为电荷耦合器件,L为透镜,I为光阑,RS为转台...
Holographic data storage systems have long had the promise of large storage capacity, short access times and high data transfer rates. Photorefractive materials such as lithium niobate (LiNbO3) can be used for hologram recording at moderate laser power (Figure 1). Figure 1 Digital holographic recording light device. The crystal rotates about 180 ° about the vertical axis, enabling phase conjugate readout. Among them CCD is a charge-coupled device, L is a lens, I is a diaphragm, RS is a turntable ...