中国基础科学
中國基礎科學
중국기출과학
CHINA BASIC SCIENCE
2010年
1期
7-12
,共6页
光的干涉和衍射%干涉全息术%光的相干性%热光的空间场关联
光的榦涉和衍射%榦涉全息術%光的相榦性%熱光的空間場關聯
광적간섭화연사%간섭전식술%광적상간성%열광적공간장관련
interference and diffraction of light%interferometric holography%optical coherence%spatial field correlation of thermal light
自从杨氏双缝干涉实验首次证明光的波动本性以来,人们一直以为实现光的空间干涉需要一个相干光源.我们2009年发表在Physical Review Letters上的实验研究表明[1],这一观念并不完全正确.我们设计了一个类似于Gabor的干涉全息实验方案,不同之处是使用了空间非相干光源.为了实现非相干光的干涉,我们对实验中物光和参考光采取了不同的衍射长度或构型,尽管它们的瞬态干涉图随时间呈现无规则涨落,但这些干涉图的统计平均强度分布记录了物体的全息信息.
自從楊氏雙縫榦涉實驗首次證明光的波動本性以來,人們一直以為實現光的空間榦涉需要一箇相榦光源.我們2009年髮錶在Physical Review Letters上的實驗研究錶明[1],這一觀唸併不完全正確.我們設計瞭一箇類似于Gabor的榦涉全息實驗方案,不同之處是使用瞭空間非相榦光源.為瞭實現非相榦光的榦涉,我們對實驗中物光和參攷光採取瞭不同的衍射長度或構型,儘管它們的瞬態榦涉圖隨時間呈現無規則漲落,但這些榦涉圖的統計平均彊度分佈記錄瞭物體的全息信息.
자종양씨쌍봉간섭실험수차증명광적파동본성이래,인문일직이위실현광적공간간섭수요일개상간광원.아문2009년발표재Physical Review Letters상적실험연구표명[1],저일관념병불완전정학.아문설계료일개유사우Gabor적간섭전식실험방안,불동지처시사용료공간비상간광원.위료실현비상간광적간섭,아문대실험중물광화삼고광채취료불동적연사장도혹구형,진관타문적순태간섭도수시간정현무규칙창락,단저사간섭도적통계평균강도분포기록료물체적전식신식.
It seems well known that the performance of optically spatial interference requires a coherent light source since the Young's double-slit interference experiment which for the first time demonstrated the wave nature of light. Here we report the experimental research which contradicts this common knowledge. Our experimental scheme is very similar to Gabor's original proposal of holography, except that an incoherent source replaces the coherent one. To realize the interference using incoherent light, the object wave and reference wave in our holographic schemes travel through different diffraction lengths or configurations. As a result, the hologram of the object is recorded in the average intensity distribution of the interference plane.
