饱和(图论)
分析化学(期刊)
材料科学
化学
数学
色谱法
组合数学
作者
Azzurra Volpi,Jackson Kock,Alexander R. Albrecht,Markus P. Hehlen,Richard I. Epstein,Mansoor Sheik‐Bahae
出处
期刊:Optics Letters
[The Optical Society]
日期:2021-03-11
卷期号:46 (6): 1421-1421
被引量:7
摘要
Knowledge of saturation intensity of gain or absorption plays a fundamental role in a variety of applications ranging from lasers to many nonlinear optical processes. Here, we present an analytical expression for open-aperture Z-scan transmission for accurately measuring the saturation intensity in the low absorbance samples but at arbitrary pump intensities. We exploit this formalism to investigate the absorption saturation of L i Y F 4 : Y b 3 + (YLF:Yb) in the anti-Stokes excitation region for optical refrigeration at high pump intensities. An absorption saturation intensity of 14.5 ± 1 k W / c m 2 was measured in YLF:Yb at 1020 nm ( E | | c ) at room temperature.
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