迈克尔逊干涉仪与光源的时间相干性研究.pdf

2011 澶у鐢熺墿鐞嗗疄楠岀爺绌惰鏂 杩堝厠灏旈€婂共娑変华涓庡厜婧愮殑鏃堕棿鐩稿共鎬х爺绌 鏈辨睙娉 锛堜笢鍗楀ぇ瀛︽暟瀛︾郴锛屽崡浜 210096锛 鎽樿锛氳繄鍏嬪皵閫婂共娑変华鏄疄楠屽鍜屽厜瀛﹁閲忎腑鏈€甯哥敤鐨勪华鍣紝瀹冨吀鍨嬩綋鐜板嚭鍏夌殑鏃堕棿鐩稿共鎬э紝 渚嬪鐢ㄩ挔鍏夌収鏄庢墍鐪嬪埌鐨勫共娑夌幇璞°€傛湰鏂囩潃閲嶄粙缁嶄簡杩堝厠灏旈€婂共娑変华宸ヤ綔鐨勫熀鏈師鐞嗭紝鏃堕棿 鐩稿共鎬х殑鍩烘湰姒傚康浠ュ強鐢ㄤ笉鍚屽厜婧愪负渚嬶紝绠€鍗曠殑璇存槑鍏夋簮鐨勬椂闂寸浉骞叉€х殑闂銆 鍏抽敭璇嶏細杩堝厠灏旈€婂共娑変华銆佹椂闂寸浉骞叉€с€佸厜鎷 Michelson interferometer and the study of the temporal coherence of the light source Abstract 锛歁ichelson interferometer is the most commonly used instruments in laboratory and optical metrology, which typically reflects the temporal coherence of light, for example, see sodium lighting interference. This article introduces the Michelson interferometer鈥檚 basic work principle, the basic concept of temporal coherence and using the different light sources to give a simple description of the light source temporal coherence problems. Keywords 锛歁ichelson interferometer銆乀emporal coherence銆乴ight shot 涓€銆 杩堝厠灏旈€婂共娑変华 澶氱涓撶敤骞叉秹浠€ 2. 杩堝厠灏旈€婂共娑変华鐨勭粨鏋勫拰宸ヤ綔鍘熺悊 1. 杩堝厠灏旈€婂共娑変华绠€浠 G 鏄竴闈㈤晙涓婂崐閫忓崐鍙嶈啘锛孧 銆丮 涓 1 1 2 杩堝厠灏旈€婂共娑変华,鏄?883骞寸編鍥界墿鐞嗗 骞抽潰鍙嶅皠闀滐紝M1 鏄浐瀹氱殑锛孧2 鍜岀簿瀵嗕笣鐩 瀹惰繄鍏嬪皵閫婂拰鑾浄鍚堜綔锛屼负鐮旂┒ 鈥滀互澶€濇紓 杩烇紝浣垮叾鍙墠鍚庣Щ鍔紝鏈€灏忚鏁颁负10-4mm锛 绉昏€岃璁″埗閫犲嚭鏉ョ殑绮惧瘑鍏夊浠櫒銆傚畠鏄埄 鍙及璁″埌10-5mm, M1 鍜孧2 鍚庡悇鏈夊嚑涓皬 鐢ㄥ垎鎸箙娉曚骇鐢熷弻鍏夋潫浠ュ疄鐜板共娑夈€傞€氳繃璋 铻轰笣鍙皟鑺傚叾鏂逛綅銆傚綋M2 鍜孧1 涓ユ牸骞宠鏃讹紝 鏁磋骞叉秹浠紝鍙互浜х敓绛夊帤骞叉秹鏉＄汗锛屼篃鍙 M2 绉诲姩锛岃〃鐜颁负绛夊€惧共娑夌殑鍦嗙幆褰㈡潯绾逛笉 浠ヤ骇鐢熺瓑鍊惧共娑夋潯绾广€備富瑕佺敤浜庨暱搴﹀拰鎶樺皠 鏂粠涓績鈥滃悙鍑衡€濇垨鍚戜腑蹇 鈥滄秷澶扁€濄€備袱骞 鐜囩殑娴嬮噺锛岃嫢瑙傚療鍒板共娑夋潯绾圭Щ鍔ㄤ竴鏉★紝渚 闈㈤暅涔嬮棿鐨勨€滅┖姘旈棿闅欌€濊窛绂诲澶ф椂锛屼腑蹇 鏄疢2 鐨勫姩鑷傜Щ鍔ㄩ噺涓何?2锛岀瓑鏁堜簬M1 涓 灏变細 鈥滃悙鍑衡€濅竴涓釜鏉＄汗锛涘弽涔嬪垯 鈥滃悶杩涒€ M2 涔嬮棿鐨勭┖姘旇啘鍘氬害鏀瑰彉位/2銆傚湪杩戜唬鐗╃悊 涓€涓釜鏉＄汗銆侻2 鍜孧1 涓嶄弗鏍煎钩琛屾椂锛屽垯琛 鍜岃繎浠ｈ閲忔妧鏈腑锛屽鍦ㄥ厜璋辩嚎