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液晶光阀的光吸收层吸收系数的研究
Study of Absorption Coefficient of Light Absorption Layer in Liquid Crystal Light Valve
【摘要】 用射频 等离子体化学汽相沉积法 ,在硼玻璃基片上淀积了厚为 1.8μm的a C∶H光吸收层 ,实验证明这种光吸收层的吸收系数受工艺条件的影响。测得在最佳工艺条件下 ,该吸收层对红光、绿光和蓝光的吸收系数分别为 3.4× 10 4 ,5.4× 10 4 和 9.8× 10 4 cm- 1。讨论了典型的液晶光阀投影机对吸收层光吸收系数的要求。
【Abstract】 The light absorption layer with 1.8 μm thick hydrogenated amorphous carbon(a-C∶H) film is deposited on boride-glass by RF-plasma enhanced chemical vapor deposition (RF-PECVD) technique. Dependence of light absorption coefficients of the a-C∶H film on technology conditions is measured. Absorption coefficients for red, green and blue light are obtained with the optimum technology through experiment. The requirements on light absorption coefficient for classic projection display system in liquid crystal light valve are discussed.
【关键词】 液晶光阀;
光吸收层;
光吸收系数;
a-C∶H薄膜;
射频-等离子体化学汽相沉积;
【Key words】 liquid crystal light valve; light absorption layer; light absorption coefficient; a-C∶H film; RF-PECVD;
【Key words】 liquid crystal light valve; light absorption layer; light absorption coefficient; a-C∶H film; RF-PECVD;
【基金】 安徽省自然科学基金资助项目!(99JL0 191)
- 【文献出处】 半导体光电 ,Semiconductor Optoelectronics , 编辑部邮箱 ,2001年03期
- 【分类号】TN104.3
- 【下载频次】69