光学学报
光學學報
광학학보
ACTA OPTICA SINICA
2001年
1期
1-3
,共3页
江云坤%史保森%郭光灿%韩正甫%李剑%范晓峰
江雲坤%史保森%郭光燦%韓正甫%李劍%範曉峰
강운곤%사보삼%곽광찬%한정보%리검%범효봉
飞秒超短脉冲%参量下转换%双光子纠缠态
飛秒超短脈遲%參量下轉換%雙光子糾纏態
비초초단맥충%삼량하전환%쌍광자규전태
利用钛宝石飞秒激光超短脉冲抽运BBO晶体，产生Ⅰ型自发光参量下转换的双光子对，在实验上得到双光子对的四阶干涉现象，证明了双光子纠缠态的关联特性。
利用鈦寶石飛秒激光超短脈遲抽運BBO晶體，產生Ⅰ型自髮光參量下轉換的雙光子對，在實驗上得到雙光子對的四階榦涉現象，證明瞭雙光子糾纏態的關聯特性。
이용태보석비초격광초단맥충추운BBO정체，산생Ⅰ형자발광삼량하전환적쌍광자대，재실험상득도쌍광자대적사계간섭현상，증명료쌍광자규전태적관련특성。
A BBO nonlinear crystal was used in the experiment. A pair oflight quanta called signal and idler light quanta is produced through the nonlinear process of type Ⅰ spontaneous parametric down-conversion with Ti∶sapphire femtosecond pulses. The fourth-order interference phenomena was observed and the correlation behavior of the two-photon entangled state was demonstrated.
