CAJ | 학술논문

高亮度的辐照热光源一定程度上限制了基于经典热光场的强度关联量子成像技术的实验研究和广泛应用.因为一般热光源相干时间极短,且每个相干元胞内光子数少(亮度低),而采用激光照射旋转毛玻璃形成的动态散斑作为赝热光场可以解决上述问题.当采用的是纳秒脉冲激光时,得到的赝热光场除了能极大程度地模拟真实热光场的热涨落,光场涨落服从真实热光场所具有的高斯统计分布以外,另一个最重要的特性是光场涨落的测量不受光电探测系统有限通频带的限制,即使是慢响应探测电路,也能准确地记录光场抖动,即该光场符合交叉谱纯条件.
고량도적복조열광원일정정도상한제료기우경전열광장적강도관련양자성상기술적실험연구화엄범응용.인위일반열광원상간시간겁단,차매개상간원포내광자수소(량도저),이채용격광조사선전모파리형성적동태산반작위안열광장가이해결상술문제.당채용적시납초맥충격광시,득도적안열광장제료능겁대정도지모의진실열광장적열창락,광장창락복종진실열광장소구유적고사통계분포이외,령일개최중요적특성시광장창락적측량불수광전탐측계통유한통빈대적한제,즉사시만향응탐측전로,야능준학지기록광장두동,즉해광장부합교차보순조건.
The intensity correlated quantum imaging experiment and application with thermal light restricted by the high bright thermal light to some extent.The coherence time is shorter,and the number of photons in a coherent cellular is smaller because of true thermal light,so true thermal light is replaced by pseudo-thermal light,which can be obtained by a laser transmitting through rotary ground glass. When a nanosecond laser is used,the source simulates the intensity fluctuation of true thermal light extremely,and obeys to Gauss statisticaI distribution property.In addition,the important property is that the measurement to intensity fluctuation isn't limited by finite pass band of the photo-detector.Even in the case of slowet response detector,the intensity fluctuation can be recorded accurately,and the light field is cross-spectrally pure.