Abstract

The dual-beam (pump, probe) time-resolved Z-scan technique is used to study the thermal changes in refractive index that are due to one- and two-photon absorption in organic solvents. The time resolution enabled us to select a pure thermal signal and to measure absolute variations as small as 10⁻⁶ that were due to heating. Gaussian approximation was used for the pump and probe beams to fit experimental and calculated model dependencies.

© 1994 Optical Society of America

Two-photon-absorption-induced accumulated thermal effect on femtosecond Z-scan experiments studied with time-resolved thermal-lens spectrometry and its simulation

Kenji Kamada, Kinu Matsunaga, Akihiro Yoshino, and Koji Ohta
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Time-resolved Z-scan measurements of optical nonlinearities

J. Wang, M. Sheik-Bahae, A. A. Said, D. J. Hagan, and E. W. Van Stryland
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Characterization of dynamic optical nonlinearities by continuous time-resolved Z-scan

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Direct observation of the transient thermal-lensing effect using the phase-object Z-scan technique

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Optical nonlinearities and transient dynamics of 2-(2′-hydroxyphenyl)benzoxazole studied by single-beam and time-resolved two-color Z-scan techniques

Xiaoming Shang, Guoqing Tang, Guilan Zhang, Yunqi Liu, Wenju Chen, Bingzhou Yang, and Xiaoqiu Zhang
J. Opt. Soc. Am. B 15(2) 854-862 (1998)