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3 results on '"Weiguo Chu"'

1. Gain dynamics and temporal characteristics of nitrogen lasers pumped by circularly-polarized femtosecond laser pulses

Author

Hongqiang Xie, Huailiang Xu, Bin Zeng, G. Li, Ya Cheng, Jielei Ni, Weiguo Chu, Chenrui Jing, Z. Li, and Jinping Yao

Subjects
Materials science, Active laser medium, business.industry, Physics::Optics, Laser pumping, Laser, Round-trip gain, Gain-switching, law.invention, Optics, law, Diode-pumped solid-state laser, Optoelectronics, Physics::Atomic Physics, Laser power scaling, Nitrogen laser, business
Abstract

We experimentally investigate gain dynamics and temporal characteristics of a free-space nitrogen laser pumped by circularly-polarized femtosecond laser pulses based on the pump-probe scheme.

Published
2015

2. Strong-field-ionization induced air lasers

Author

Bin Zeng, Weiguo Chu, Jielei Ni, Chenrui Jing, J. Yao, Hongqiang Xie, Z. Li, G. Li, Ya Cheng, and Huailiang Xu

Subjects
Materials science, business.industry, Strong field, chemistry.chemical_element, Nonlinear spectroscopy, Yttrium, Laser, law.invention, Nickel, chemistry, law, Ionization, Optoelectronics, Energy level, Physics::Atomic Physics, Atomic physics, business, Spectroscopy
Abstract

We report on generation of strong-field-ionization induced free-space air lasers and explore their applications in remote sensing and molecular physics.

Published
2015

3. Remote lasing in air driven by strong laser field: Lasing or nonlinear frequency conversion?

Author

Huailiang Xu, J. Yao, Ya Cheng, Zuyuan Xu, See Leang Chin, Bin Zeng, Weiguo Chu, and Jielei Ni

Subjects
Amplified spontaneous emission, Materials science, Field (physics), business.industry, Physics::Optics, Population inversion, Laser, Gain-switching, law.invention, symbols.namesake, Four-wave mixing, Optics, law, symbols, Optoelectronics, business, Lasing threshold, Raman scattering
Abstract

We demonstrated systematic investigations on the mechanism of remote coherent N2+ emission in air using a pump-probe configuration. Our experimental results suggest lasing action based on instantaneous population inversion is the most likely mechanism.

Published
2013

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