The development of high power Neodymium glass (Nd:glass) laser allows for application in laser propulsion. The Nd:glass laser is one of a candidate of the driver for the propulsion. However, there is a lack of study with using the solid state laser. Previous studies found that plasma induced using the glass laser absorbs the laser energy during a short laser supported detonation (LSD) regime compared with lasers. To investigate a laser wavelengths dependency of LSD in comparison with the laser, we used plasma emission spectroscopy and measured the electron temperature and electron density. As a result, these parameters of the glass laser appear to be higher value than those for the laser plasma. Besides, the absorption depth behind the shock wave is longer than that one of the laser. The results reveal that the long depth absorbs the energy conversion efficiency at almost same order despite a short LSD duration, as compared with the laser.
Laser Wavelength Dependency of Laser Supported Detonation
BEAMED ENERGY PROPULSION: Seventh International Symposium ; 2011 ; Ludwigsburg, (Germany)
AIP Conference Proceedings ; 1402 , 1 ; 314-325
2011-11-10
12 pages
Conference paper
Electronic Resource
English
Laser wavelength dependency of laser supported detonation
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