Journal of East China Normal University(Natural Science) ›› 2023, Vol. 2023 ›› Issue (4): 119-126.doi: 10.3969/j.issn.1000-5641.2023.04.013

• Physics and Electronics • Previous Articles     Next Articles

Time-resolved second-order correlation function of ultrafast evolutionary light field

Zhenyu WANG, Wei XIE*()   

  1. State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200241, China
  • Received:2022-05-21 Online:2023-07-25 Published:2023-07-25
  • Contact: Wei XIE


Based on the Monte Carlo algorithm, photon detection during ultrafast evolutionary light emission was simulated and analyzed in this study. In addition, a method for calculating the time-resolved photon second-order correlation function was developed, and the effects of various errors on the photon second-order correlation function were investigated. The results show that the synchronous time jitter (initial time drift) significantly increases the time-resolved second-order correlation function when the light intensity sharply increases at the initial time, and the value of the time-integrated second-order correlation function is high at any delay. The existence of background photon counts causes the value of the zero-delay second-order correlation function of thermal light to approach unity. This study proposes a simplified simulation method for the theoretical study of photon second-order correlation functions in complicated light fields. Furthermore, this study provides theoretical support and numerical analysis methods for the subsequent experimental measurements of second-order correlation functions with ultrahigh time resolution.

Key words: photon second-order correlation function, time dynamics, Monte Carlo algorithm

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