Ultrasensitive femtosecond two-photon detector with resonantly enhanced nonlinear absorption

Harald Schneider; Thomas Maier; H. C. Liu; Martin Walther; Peter Koidl

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Ultrasensitive femtosecond two-photon detector with resonantly enhanced nonlinear absorption

机译：飞秒双光子超灵敏探测器，具有共振增强的非线性吸收

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We report on two-photon detection based on nonlinear absorption between subbands in quantum wells. Resonantly enhanced nonlinear absorption, 6 orders of magnitude higher than that of typical bulk semiconductors, leads to a threshold power density for quadratic detection as low as 0.1 W/cm~(2) and to femtosecond time resolution. The approach facilitates dynamic characterization of the optical light field of infrared emitters with unprecedented sensitivity. We also present a new method for determining the intersubband and intrasubband scattering times by means of autocorrelation measurements.

机译：我们报告了基于量子阱子带之间非线性吸收的双光子检测。与典型的体半导体相比，共振吸收的非线性吸收增强了6个数量级，从而导致用于二次检测的阈值功率密度低至0.1 W / cm〜（2），并导致了飞秒的时间分辨率。该方法有助于以前所未有的灵敏度动态表征红外发射器的光场。我们还提出了一种通过自相关测量确定子带间和子带内散射时间的新方法。

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《Optics Letters》 |2005年第3期|共3页
作者
Harald Schneider; Thomas Maier; H. C. Liu; Martin Walther; Peter Koidl;
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正文语种 eng
中图分类光学;
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1. Ultrasensitive femtosecond two-photon detector with resonantly enhanced nonlinear absorption [J] . Harald Schneider, Thomas Maier, H. C. Liu, Optics Letters . 2005,第3期

机译：飞秒双光子超灵敏探测器，具有共振增强的非线性吸收
2. Femtosecond-laser induced two-photon absorption of GaN and AlxGa1-xN thin films: Tuning the nonlinear optical response by alloying and doping [J] . Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics . 2020,第期

机译：Femtosecond-Laser诱导GaN和Alxga1-XN薄膜的双光子吸收：通过合金和掺杂调节非线性光学响应
3. Highly efficient flexible piezoelectric rianogerierator and femtosecond two-photon absorption properties of nonlinear lithium niobate nanowires [J] . Manoj Kumar Gupta, Janardhanakurup Aneesh, Rajesh Yadav, Journal of Applied Physics . 2017,第17期

机译：非线性铌酸锂纳米线的高效柔性压电反射仪和飞秒二光子吸收特性
4. Novel Ultrasensitive Plasmonic Detector of Terahertz Pulses Enhanced by Femtosecond Optical Pulses [C] . M. Shur, S. Rudin, G. Rupper, Terahertz emitters, receivers, and applications VII . 2016

机译：飞秒光脉冲增强的太赫兹脉冲新型超灵敏等离子体探测器
5. Ultrasensitive technique for measurement of two-photon absorption. [D] . Miller, Steven Alan. 1991

机译：测量双光子吸收的超灵敏技术。
6. Off-Resonant Two-Photon Absorption Cross-Section Enhancement of an Organic Chromophore on Gold Nanorods [O] . Sean T. Sivapalan, Jarrett H. Vella, Timothy K. Yang, -1

机译：脱谐双光子吸收横截面在金纳米棒上有机发色团的增强
7. Nonlinear-optical processes in the near-resonant two-photon excitation of xenon by femtosecond KrF-excimer-laser pulses [O] . Tünnermann, A., Mossavi, K., Wellegehausen, B. 1992

机译：飞秒KrF-准分子激光脉冲近红外双光子激发氙的非线性光学过程
8. Suppression of Two-Photon Resonantly Enhanced Nonlinear Processes in Extended Media [R] . Garrett, W. R. , Moore, M. A. , Payne, M. G. , 1988

机译：扩展介质中双光子共振增强非线性过程的抑制

Ultrasensitive femtosecond two-photon detector with resonantly enhanced nonlinear absorption

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