首页|Nitrogen air lasing induced by multiple filaments array

Nitrogen air lasing induced by multiple filaments array

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Air lasing emission by launching intense ultrafast laser pulses in atmosphere has recently attracted increasing interest in the ultrafast laser science and atmospheric science fields,especially for remote sensing techniques.We demon-strated the fluorescence emissions at 337 nm,357 nm and 391 nm induced by multiple filaments using four kinds of step phase plates.Our results have indicated that the fluorescence signal has been amplified as it propagates along the filament through amplified spontaneous emission(ASE),and the fluorescence intensity is also enhanced in the back-ward direction via multiple filaments.Furthermore,the gain coefficient through ASE is increased with the number of filaments.

ZHU Di、LI Chunhua、GAO Zhongkun、SUN Xiaodong、GAO Hui

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Tianjin Key Laboratory of Optoelectronic Detection Technology and Systems,Tianjin 300387,China

School of Electronics and Information Engineering,Tiangong University,Tianjin 300387,China

School of Life Science,Tiangong University,Tianjin 300387,China

School of Physical Science and Technology,Tiangong University,Tianjin 300387,China

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国家自然科学基金天津市自然科学基金Tianjin Municipal Education Commission ProgramUndergraduate Innovation and Entrepreneurship Training Program of Tiangong University

6160514417JCQNJC020002017KJ099202010058106

2022

10.1007/s11801-022-1182-y

光电子快报(英文版)
天津理工大学

光电子快报(英文版)

EI
影响因子：0.641
ISSN：1673-1905
年,卷(期)：2022.18(6)
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