摘要
根据光子晶体带隙对光波长或频率的选择性特征,将一维二元和三元光子晶体用于滤除位置敏感探测器的背景光。通过比较位置敏感探测器感光光谱和背景光的差异,对二元和三元光子晶体的参数进行合理设置,利用特征矩阵法计算了反射率和透射率,结果表明光子晶体可以从根本上解决背景对位置敏感探测器的干扰。
The photonic bandgap is selective for wave length（or frequency）.One dimentional binary and ternary photonic crystal are used to elliminate the background light for position sensitive detector（PSD）.Because PSD is much sensitive to near infare light than background light which is the versible light,the appropriate parameters are selected for the binary and ternary photonic crystal.Used characteristic matrix method the reflectivity and tansmissivity are available.The results are shown the background light is elliminated by the photonic crystal.
出处
《激光杂志》
CAS
CSCD
北大核心
2010年第6期35-36,共2页
Laser Journal
基金
重庆市教委科技项目基金资助(KJ080720)
关键词
光子晶体
位置敏感探测器
背景光
特征矩阵
potonic crystal
position sensitive detector
background light
characteristic matrix
