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Elongation of femtosecond filament by molecular alignment in air

✍ Scribed by Cai, Hua; Wu, Jian; Li, Hao; Bai, Xueshi; Zeng, Heping


Book ID
115412219
Publisher
Optical Society of America
Year
2009
Tongue
English
Weight
190 KB
Volume
17
Category
Article
ISSN
1094-4087

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Molecular alignment control of terahertz
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We demonstrate a method to control the terahertz (THz) emission from a two-color filament in air based on molecular alignment due to rotational Raman excitation. By tuning the delay time between rotational Raman excitation and THz excitation around the air molecule revival time, a significant modula