Intense broadband THz generation from femtosecond laser filamentation

• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2013,（1）
• 页码范围: 25-30
• 页数: 6页
• 语种: 英文
• DOI: 10.3788/COL201311.011401

摘要

Broadband and energetic terahertz (THz) pulses can be remotely generated in air through filamentation.We review such THz generation and detection in femtosecond Ti-sapphire laser induced remote filaments.New results are presented on the direct relationship between THz generation in a two color filament and induced N2 fluorescence through population trapping during molecular alignment and revival in air.This further supports the new technique of remote THz detection in air through the sensitive measurement of N2 fluorescence.