基于自发参量下转换的宽光谱分布实验研究
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摘要
研究相关光子光场的光谱分布对基于自发参量下转换的光电探测器的宽波段辐射定标具有重要意义。建立了相关光子宽光谱分布测量实验系统。利用355 nm连续波(CW)激光抽运BBO晶体产生I类非共线自发参量下转换,使用光子计数系统测量了相关光子在晶体后端的光谱分布,测量的相关光子光谱分布带宽为259 nm(550~808 nm)。相关光子的光谱角分布测量结果与理论模拟结果近似,相对误差小于2%。实验结果表明相关光子存在着可见-近红外宽波段光谱分布,有望应用于光电探测器的宽光谱定标。
Research on spectrum distribution of correlated photon optics-field has great significance in terms of the calibration for photoelectric detector in broadband spectrum based on spontaneous parametric down-conversion.An experiment is set up to measure the distribution of correlated photon broadband spectrum. A continuous wave355 nm laser and a photon counting system are used to pump the β-barium borate(BBO) crystal to product type I spontaneous parametric down-conversion in the regime of nonlinear and the spectrum distribution of correlated photon outside the BBO crystal is measured, respectively. The bandwidth of correlated photon spectrum in experiment is 259 nm(550~808 nm). The angle distribution result in experiment is in accordance with the theory prediction, with the angle distribution difference less than 2%. It is turned out that a broad band spectrum distribution from visible to near infrared exists with respect to correlated photon. It is promising to be applied to calibration for photoelectric detector in broadband spectrum.
Research on spectrum distribution of correlated photon optics-field has great significance in terms of the calibration for photoelectric detector in broadband spectrum based on spontaneous parametric down-conversion.An experiment is set up to measure the distribution of correlated photon broadband spectrum. A continuous wave355 nm laser and a photon counting system are used to pump the β-barium borate(BBO) crystal to product type I spontaneous parametric down-conversion in the regime of nonlinear and the spectrum distribution of correlated photon outside the BBO crystal is measured, respectively. The bandwidth of correlated photon spectrum in experiment is 259 nm(550~808 nm). The angle distribution result in experiment is in accordance with the theory prediction, with the angle distribution difference less than 2%. It is turned out that a broad band spectrum distribution from visible to near infrared exists with respect to correlated photon. It is promising to be applied to calibration for photoelectric detector in broadband spectrum.
引文
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15 Li Pingfu,Li Jianjun,Xia Maopeng,et al..Numercial simulation and experiment of spectral distribution of type-I noncollinear spontaneous parametric down-conversion[J].Jouranal of Atmospheric and Environment Optics,2013,8(3):203-211.李平付,李健军,夏茂鹏,等.I类非共线SPDC光谱分布数值模拟及实验研究[J].大气与环境光学学报,2013,8(3):203-211.
16 C K Hong,L Mandel.Theory of parametric frequency down conversion of light[J].Physical Review A,1985,31(4):2409-2418.
17 Lu Zonggui,Liu Hongjun,Jing Feng,et al..Theoretical analysis of spectral properteies of parametric fluorescence via spontaneous parametric downconversion[J].Acta Physics Sinica,2009,58(7):4689-4696.卢宗贵,刘红军,景峰,等.基于自发参量下转换产生参量荧光的光谱分布特性理论分析[J].物理学报,2009,58(7):4689-4696.
18 F Devaux,E Lantz.Spatial and temporal properties of parametric fluorescence around degeneracy in type I LBO crystal[J].Eur Phys J D,2000,8(1):117-124.
2 Li Jianjun,Zheng Xiaobing,Lu Yunjun,et al..Accurate calibration of the spectral responsivity of silicon trap detectors between 350 nm and 1064 nm[J].Acta Physica Sinica,2009,58(9):6273-6278.李健军,郑小兵,卢云君,等.硅陷阱探测器在350 nm~1064 nm波段的绝对光谱响应度定标[J].物理学报,2009,58(9):6273-6278.
3 Li Jianjun,Zheng Xiaobing,Feng Yu,et al..The research of spontaneous parametric down-conversion and its application in the pptics metrology[J].Laser&Optoelectronics Progress,2005,42(7):1-11.李健军,郑小兵,冯瑜,等.自发参量下转换的研究及其在光学计量中的应用[J].激光与光电子学进展,2005,42(7):1-11.
4 Yu Feng,Xiaobing Zheng,Jianjun Li,et al..Research in absolute calibration of single photon detectors by means of correlated photons[J].Chin Opt Lett,2006,4(6):315-317.
5 Jianjun Li,Xiaobing Zheng,Yunjun Lu,et al..Quantum efficiency calibration of opto-electronic detector by means of correlated photons method[J].Chin Opt Lett,2008,6(7):472-475.
6 Li Jianjun,Zheng Xiaobing,Lu Yunjun,et al..Optical radiometric calibration based on parametric down-conversion effect[J].Acta Optica Sinica,2008,28(12):2325-2329.李健军,郑小兵,卢云君,等.基于参变下转换效应的光辐射定标方法[J].光学学报,2008,28(12):2325-2329.
7 LüLiang,Zhang Yinchao,Lin Yandong.Research on absolute calibration of photondetector quantum-efficiency using entangled photons[J].Acta Optica Sinica,2012,32(1):0112004.吕亮,张寅超,林延东.纠缠光子法绝对定标光电探测器量子效率的研究[J].光学学报,2012,32(1):0112004.
8 Wu Ling′an,Chen Xihao,Zhai Yanhua,et al..Absolute self-calibration of single-photon detectors with cw and pulsed spontaneous parametric down-conversion[C].SPIE,2006,6305:630505.
9 Lu Shulong,Liu Bo,Sun Baoquan,et al..Absolute measurement of detector quantum efficiency using optical parametric down-conversion pumped by femtosecond laser pulses[J].Measurement Science and Technology,2002,13(12):186-189.
10 A Ghazi-Bellouati,A Razeta,J Bastie,et al..Detector calibration at INM using a correlated photons source[J].Eur Phys J Appl Phys,2006,35(3):211-216.
11 G Brida,S Castelletto,C Novro.Measurement of quantum efficiency of photodetectors by parametric fluorescence[J].Metrologia,1998,35(4):379-401.
12 J Y Cheung,C J Chunnilall,P J Thomas,et al..Photon-counting measurement challenges[C].SPIE,2007,6583:65830G.
13 S V Polyakov,A L Migdall.High accuracy verification of a correlated photon-based method for determining photoncounting detection efficiency[J].Opt Express,2007,15(4):1390-1404.
14 A L Migdall,R U Datla,A Sergienko,et al..Absolute detector quantum-efficiency measurements using correlated photons[J].Metrologia,1995,32(6):479-483.
15 Li Pingfu,Li Jianjun,Xia Maopeng,et al..Numercial simulation and experiment of spectral distribution of type-I noncollinear spontaneous parametric down-conversion[J].Jouranal of Atmospheric and Environment Optics,2013,8(3):203-211.李平付,李健军,夏茂鹏,等.I类非共线SPDC光谱分布数值模拟及实验研究[J].大气与环境光学学报,2013,8(3):203-211.
16 C K Hong,L Mandel.Theory of parametric frequency down conversion of light[J].Physical Review A,1985,31(4):2409-2418.
17 Lu Zonggui,Liu Hongjun,Jing Feng,et al..Theoretical analysis of spectral properteies of parametric fluorescence via spontaneous parametric downconversion[J].Acta Physics Sinica,2009,58(7):4689-4696.卢宗贵,刘红军,景峰,等.基于自发参量下转换产生参量荧光的光谱分布特性理论分析[J].物理学报,2009,58(7):4689-4696.
18 F Devaux,E Lantz.Spatial and temporal properties of parametric fluorescence around degeneracy in type I LBO crystal[J].Eur Phys J D,2000,8(1):117-124.