Abstract
Nonlinear coupling of pumping rates in pump channels can produce effects very similar to the photon avalanche in up-conversion luminescence in the absence of a true avalanche. Stationary luminescence intensity can depend on the pump intensity practically in the same way. Here we show that time-dynamics for true avalanche and for avalanche-like processes are drastically different. Based on measuring the development times of stationary luminescence for several pump intensities, a simple test is proposed to reveal the nonlinear process underlying the observed avalanche-like effect.
© 2020 Optical Society of America
Full Article | PDF ArticleMore Like This
M. V. Korolkov, I. A. Khodasevich, A. S. Grabtchikov, D. Mogilevtsev, and E. V. Kolobkova
Opt. Lett. 44(23) 5880-5883 (2019)
Bo Zhang, Zhen Zhang, Bing Hui Huang, Xiaobo Qian, Jiang Ya Wang, Rongrong Liu, Fengkai Ma, and Liangbi Su
Opt. Express 28(15) 22218-22230 (2020)
Shengyi Liu, Duan Gao, Li Wang, Wenbin Song, Zhiliang Zhang, Shitao Wang, Ying Zhu, and Qi Zhang
J. Opt. Soc. Am. B 41(3) 798-808 (2024)