Electric-field-induced second-harmonic generation using high-intensity femtosecond laser pulses over the observable optical breakdown threshold

Fujii Takashi; Sato Masahiro; Nakamura Shin; Kumada Akiko; Miki Megumu; Oishi Yuji

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Electric-field-induced second-harmonic generation using high-intensity femtosecond laser pulses over the observable optical breakdown threshold

机译：使用高强度飞秒激光脉冲在可观察到的光学击穿阈值上使用电场诱导的二次谐波产生

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We investigated the performance of electric-field-induced second-harmonic generation (E-FISHG) by spectroscopic measurement using high-intensity femtosecond laser pulses. The second-harmonic intensity increased quadratically versus the applied electric field, as expected from the theory, up to 15 kV/cm with the laser energy up to 2.5 mJ, which is similar to 5 times higher than the observable optical breakdown threshold. In addition, when the laser energy was 2.8 mJ, similar to 80 times signal intensity at 0.23 mJ was obtained. These results suggest that the electric-field measurement by E-FISHG with high-intensity second harmonics is expected by using high-intensity laser pulses above the observable optical breakdown threshold. Spectroscopic measurement shows no E-FISHG of white light generated by self-phase modulation in laser-induced filament. (C) 2021 Optical Society of America

机译：我们通过高强度飞秒激光脉冲光谱测量研究了电场诱导二次谐波产生（E-FISH）的性能。根据理论，二次谐波强度随着外加电场的增加呈二次曲线增加，高达15 kV/cm，激光能量高达2.5 mJ，这类似于比可观测光学击穿阈值高5倍。此外，当激光能量为2.8mj时，在0.23mj时获得了类似于80倍的信号强度。这些结果表明，使用高于可见光击穿阈值的高强度激光脉冲，可以通过高强度二次谐波的E-FISH进行电场测量。光谱测量表明，在激光诱导的灯丝中，没有自相位调制产生白光的E-FISHG。（2021）美国光学学会

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《Optics Letters》 |2021年第2期|共4页
作者
Fujii Takashi; Sato Masahiro; Nakamura Shin; Kumada Akiko; Miki Megumu; Oishi Yuji;
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Univ Tokyo Sch Engn Dept Elect Engn &

Informat Syst Bunkyo Ku 7-3-1 Hongo Tokyo 1138656 Japan;

Univ Tokyo Sch Engn Dept Elect Engn &

Informat Syst Bunkyo Ku 7-3-1 Hongo Tokyo 1138656 Japan;

Univ Tokyo Sch Engn Dept Elect Engn &

Informat Syst Bunkyo Ku 7-3-1 Hongo Tokyo 1138656 Japan;

Univ Tokyo Sch Engn Dept Elect Engn &

Informat Syst Bunkyo Ku 7-3-1 Hongo Tokyo 1138656 Japan;

Cent Res Inst Elect Power Ind Elect Power Engn Res Lab 2-6-1 Nagasaka Yokosuka Kanagawa 2400196 Japan;

Cent Res Inst Elect Power Ind Elect Power Engn Res Lab 2-6-1 Nagasaka Yokosuka Kanagawa 2400196 Japan;

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正文语种 eng
中图分类计量学;光学;
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2. Optical breakdown and filamentation of femtosecond laser pulses propagating in air at a kHz repetition rate [J] . Duan Zuo-Liang, Chen Jian-Ping, Li Ru-Xin, 中国物理：英文版 . 2004,第003期
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4. Generation of Femtosecond Laser Pulse at 1053 nm with Contrast of 10-11 by Optical-Parametric Amplification [J] . SHEN Zhong-Wei, WANG Zhao-Hua, ZHANG Wei, 中国物理快报：英文版 . 2014,第001期
5. Analysis of Enhanced Laser-Induced Breakdown Spectroscopy with Double Femtosecond Laser Pulses [J] . SHEN Jie, YANG Zhengcai, LIU Xiaoliang, 等离子体科学和技术（英文版） . 2015,第002期
6. Computational modelling of second-harmonic generation by a femtosecond laser pulse of a few optical cycles [J] . Hovhannisyan D, Stepanyan K, Avagyan R Journal of Modern Optics . 2005,第1期

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7. Detection of pre-electrical breakdown of IZO/α-NPD/Alq3/Al light-emitting diodes by electric-field-induced optical second-harmonic generation measurement [J] . Dai Taguchi, Ryo Nakamoto, Takaaki Manaka, Japanese journal of applied physics . 2014,第4S期

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8. Optical breakdown threshold in fused silica with femtosecond laser pulses [J] . Bendib A., Bendib-Kalache K., Deutsch C. Laser and Particle Beams . 2013,第3期

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9. Femtosecond second-harmonic generation in periodically poled lithium niobate waveguides written by femtosecond laser pulses [C] . OptoElectronics and Communications Conference . 2009

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10. Femtosecond time-resolved study of plasma generation and dynamics by blueshifting of high-intensity laser pulses. [D] . Wood, William Monford. 1991

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机译：使用二次谐波产生的频率分辨光学门控测量超短激光脉冲：超短激光脉冲的表征
13. Self-Transformation of a Powerful Femtosecond Laser Pulse into a White- Light Laser Pulse in Bulk Optical Media (or Supercontinuum Generation). [R] . A. Becker I. S. Golubtsov O. G. Kosareva V. P. Kandidov W. Liu 2003

机译：强大的飞秒激光脉冲在大容量光学介质（或超连续谱产生）中自转换为白光激光脉冲。

Electric-field-induced second-harmonic generation using high-intensity femtosecond laser pulses over the observable optical breakdown threshold

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