Abstract
We have calculated the radiation emitted from free electrons in an ultrashort pulsed laser focus. For low electron densities, where space charge is negligible, we find that ponderomotive forces limit the effective volume where the radiation is emitted to a region much smaller than the waist at the focus. For typical focal parameters, the emitting region is significantly smaller than the fundamental wavelength. Nonetheless, constructive inteference plays a significant role in the collective radiation spectrum. Phase mismatch becomes important only for the higher harmonics. These studies are intended as a prelude to experiments with high intensity ultrashort laser pulses.
© 1991 Optical Society of America
PDF ArticleMore Like This
Wenchao Yan, Grigory Golovin, Daniel Haden, Colton Fruhling, Ping Zhang, Jun Zhang, Baozhen Zhao, Cheng Liu, Shouyuan Chen, Sudeep Banerjee, and Donald Umstadter
HM3B.3 High Intensity Lasers and High Field Phenomena (HILAS) 2016
Koji Matsukado, Ichita Endo, Tohru Takahashi, Masataka Iinuma, Shuji Sakabe, Shin-ichiro Okihara, Yasukazu Izawa, and Toshiaki Tauchi
TuC3_3 Conference on Lasers and Electro-Optics/Pacific Rim (CLEO/PR) 2001
Kitae Lee, Seong Hee Park, Young Uk Jeong, Sang Young Chung, and Dong-Eon Kim
MB1_5 Conference on Lasers and Electro-Optics/Pacific Rim (CLEO/PR) 2007