Polarization-dependent supercontinuum generation from light filaments in air.
We investigate polarization-dependent properties of the supercontinuum emission generated from filaments produced by intense femtosecond laser pulses propagating through air over a long distance. The conversion efficiency from the 800-nm fundamental to white light is observed to be higher for circular polarization than for linear polarization when the laser intensity exceeds the threshold of the breakdown of air.
Yang
Hui
H
Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China.
Zhang
Jie
J
Zhang
Qiuju
Q
Hao
Zuoqiang
Z
Li
Yutong
Y
Zheng
Zhiyuang
Z
Wang
Zhaohua
Z
Dong
Quanli
Q
Lu
Xin
X
Wei
Zhiyi
Z
Sheng
Zhengming
Z
Yu
Jin
J
Yu
Wei
W