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 repe...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-CO_2 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 μs. 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.展开更多
文摘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-CO_2 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 μs. 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.
