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 CO 2 lasers. To investigate a laser wavelengths dependency of LSD in comparison with the CO 2 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 CO 2 laser plasma. Besides, the absorption depth behind the shock wave is longer than that one of the CO 2 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 CO 2 laser.


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    Title :

    Laser Wavelength Dependency of Laser Supported Detonation



    Conference:

    BEAMED ENERGY PROPULSION: Seventh International Symposium ; 2011 ; Ludwigsburg, (Germany)


    Published in:

    AIP Conference Proceedings ; 1402 , 1 ; 314-325


    Publication date :

    2011-11-10


    Size :

    12 pages





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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