The effects of main laser parameters, such as pulse energy, pulse duration, frequency, and work time on laser propulsion of "air-breathing mode", are investigated experimentally with a high power and high repetition frequency TEA-CO2 pulsed laser. The results show that the momentum coupling coefficient C_(m) decreases with increasing the pulse energy for single pulse tests and pulse duration of about 1 ?s. Either higher or lower frequency will reduce C_(m) in multi-pulse tests, which suggests an optimal frequency for the maximum C_(m). As to the work time, the longer the work time is, the less the C_(m) will be.
© 2005 Chinese Optics Letters
Ping Gong, Rongqing Tan, Zhiping Tang, Yijun Zheng, Jian Cai, Changjun Ke, Xiaojun Hu, Chongyi Wan, Yanning Yu, Shiming Liu, Jin Wu, Jinwen Zhou, Yan Lv, and Guang Zheng, "Experimental investigation of the effects of laser parameters on laser propulsion," Chin. Opt. Lett. 2, 538-540 (2005)