反射型LCOS器件纯相位调制特性的研究  

Characteristics of phase-only modulation using a reflective liquid crystal on silicon device

作　　者：葛爱明[1] 隋展[1] 徐克璹[1] 

机构地区：[1]复旦大学信息科学与工程学院,光科学与工程系,先进光子学材料与器件国家重点实验室,上海200433

出　　处：《物理学报》2003年第10期2481-2485,共5页Acta Physica Sinica

基　　金：国家高技术研究发展计划 ( 86 3计划 ) (批准号 :2 0 0 2AA84TS11);国家自然科学基金与中物院联合基金 (批准号 :10 176 0 0 7)资助的课题~~

摘　　要：研究了反射型的LCOS显示器件的相位调制特性 .采用 2× 2的Jones矩阵计算仿真 ,从理论上分析了它的相位调制特性 ,建立了一套测量振幅和相位特性的测试系统 .它采用He Ne激光为光源 ,用干涉仪观察波前相位 ,将LCOS显示器件作为液晶空间光调制器 ,用计算机和相关的电路系统驱动控制 ,并用CCD采样数据 ,测试了 1 0 2 4×768LCOS显示器件的相位调制特性 .理论和实验的一致性说明了在特定的入射、出射偏振光配制下 。This paper discusses the characteristics of phase-only modulation using a reflective liquid crystal on silicon(LCOS). The 2 x 2 Jones matrix method is used as a computational tool to theoretically analyze phase modulation characteristics. The system has been constructed for testing of amplitude and phase, in which a He-Ne laser as the light source, testing the wave front phase using an interferometer. The LCOS displays as a liquid crystal spatial light modulator and its driving circuit is controlled by a computer, digital data are sampled by CCD. We have tested the phase modulation of 1024 x 768 LCOS displays. Given the state of input and output polarizations the result of testing our theories by experiment show consistency so LCOS displays can be used as phase-only modulator.

关 键 词：反射型LCOS器件 纯相位调制特性 反射型液晶显示器 空间光调制器 

分 类 号：TN761[电子电信—电路与系统]