摘要
提出了两种模式偏振控制的光折变开关，推导了用非常偏振和寻常偏振光读出时的全息光栅的衍射效率比公式，该公式表明全息的衍射效率与偏振有关，衍射效率比可达８０％～９０％。
Two modes polarization controlled photorefractive switches are proposed. Analytical
equation of the diffraction efficiency ratio on readout with extraordinarily polarized and
ordinarily polarized beams is deduced. It is demonstrated that the diffraction efficiency of the
photorefractive hologram is relevant to the polarization of the readout beams, and this
diffraction efficiency ratio can range from 80%￣90%, this property can be used to implement
the switches.
出处
《光学学报》
EI
CAS
CSCD
北大核心
1999年第7期1003-1005,共3页
Acta Optica Sinica
基金
国家自然科学基金
上海市科学技术发展基金
关键词
光折变晶体
时开-时关开关
偏振敏感性
photorefractive crystal, normally on and normally off switch,
polarization sensitivity, diffraction efficiency.
