Research on the Distribution of Broad-Band Correlated Photon Spectra and the Measurement of Time-Correlation
GAO Dong-yang1, 2, LI Jian-jun1, XIAO Mao-peng1, ZHENG Xiao-bing1, 2*
1. Key Laboratory of Optical Calibration and Characterization, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China 2. University of Science and Technology of China, Hefei 230031, China
Abstract：The correlated photon technique makes it possible to achieve a radiation calibration processing without chain transferring. The study of the spectral radiation character and time correlation of the photon is of great significance for broad-band radiometric calibration. To absolutely calibrate quantum efficiency of photoelectric detector, it is necessary to extend calibration band from single band to more bands. According to the phase-matching condition of the spontaneous parametric down-conversion, non-collinear angle formula of correlated photon in the crystal is derived. The distribution of the photon spectrum is simulated. Meanwhile, the phase-matching angle of the crystal is optimized. The photon generated by the spontaneous parameters down-conversion has a broad spectral distribution and the correlated photon wavelength is corresponding to its emission angle. Based on the result of the simulation, the experimental measurement system of the spectral distribution and time-correlation of the correlated photon is established. The spectral distribution, the time-correlation and the polarization properties of the four pair photon were measured by using this system. The experimental results show that, (1) the spectral distribution of the measurements is 633~808 nm, where the maximum spectral distribution measurement bias is 1.51 mm. The experiment result is highly consistent with theoretical ones; (2) the correlation time of four pairs correlated photon is measured, during which “three coincidence-peaks” is observed and the minimum correlation time was 0.32 ns; (3) single photon count rate along with coincidence count rate of correlated photon vary with the polarization direction of the pump as sine function. The experimental result is shown that the correlated photon pairs are ranging from the visible to near infrared band distribution, and that the spectrum has time-correlation and polarization characteristic. The research result is firstly reported at home and abroad, and the results are promising for the application of the photoelectric detector in the multi-band radiometric calibration.
Key words：Correlated photon;Broad-band;Time correlation;Polarization character
高冬阳1, 2，李健军1，夏茂鹏1，郑小兵1, 2*. 多波段相关光子光谱分布与时间相关性测量实验研究[J]. 光谱学与光谱分析, 2016, 36(05): 1300-1307.
GAO Dong-yang1, 2, LI Jian-jun1, XIAO Mao-peng1, ZHENG Xiao-bing1, 2*. Research on the Distribution of Broad-Band Correlated Photon Spectra and the Measurement of Time-Correlation. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2016, 36(05): 1300-1307.
[1] Sergey V Polyakov，Alan L Migdall. Optics Express, 2007, 15(4): 1390. [2] Li Jianjun, Zheng Xiaobing, Lu Yunjun, et al. Chinese Optics Letters, 2008, 6(7): 472. [3] Louisell W H, Yariv A，Siegman A E. Physical Review, 1961, 124(6): 1646. [4] David C Burnham，Donald L Weinberg. Physical Review Letters, 1970, 25(2): 84. [5] Migdall A L, Datla R U, Sergienko A, et al. Metrologia, 1995, 32: 479. [6] Hong C K, Ou Z Y, Mandel L. Physical Review Letters, 1987, 59(18): 2044. [7] Baek So-Young，Kim Yoon-Ho. Physical Review A, 2008, 77: 043807. [8] Lü Liang, ZHANG Yin-chao, LIN Yan-dong(吕 亮，张寅超，林延东). Actra Optica Sinica(光学学报), 2012, 32(1): 0112004. [9] Wu Ling’an, Chen Xihao, Zhai Yanhua, et al. Proc. of SPIE, 2006, 6305(630505): 1. [10] Lu Shulong, Liu Bo, Sun Baoquan, et al. Measurement Science and Technology, 2002, 13: 186. [11] LI Ping-fu, LI Jian-jun, XIA Mao-peng, et al(李平付，李健军，夏茂鹏，等). Journal of Atmosheric and Environmental Optics(大气与环境光学学报), 2013, 8(3): 203. [12] Sergey V Polyakov，Alan L Migdalla. Journal of Modern Optics, 2009, 56(9): 1045.
