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 circul...

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Veröffentlicht in:	Optics letters 2005-03, Vol.30 (5), p.534-536
Hauptverfasser:	Yang, Hui, Zhang, Jie, Zhang, Qiuju, Hao, Zuoqiang, Li, Yutong, Zheng, Zhiyuang, Wang, Zhaohua, Dong, Quanli, Lu, Xin, Wei, Zhiyi, Sheng, Zhengming, Yu, Jin, Yu, Wei
Format:	Artikel
Sprache:	eng
Schlagworte:	Exact sciences and technology Frequency conversion harmonic generation, including high-order harmonic generation Fundamental areas of phenomenology (including applications) Harmonic generation, frequency conversion Laser-plasma interactions Nonlinear optics Optics Physics Physics of gases, plasmas and electric discharges Physics of plasmas and electric discharges Self-focussing, channeling, and filamentation in plasmas
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Zusammenfassung:	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.
ISSN:	0146-9592 1539-4794
DOI:	10.1364/OL.30.000534