Abstract
        The emission of radiation by application of different types of stress on certain crystals and phosphors is called mechanoluminescence (ML). There are certain crystals which exhibit repetitive emission of radiation at the release and pressing of the crystal. The present paper reports that the emission of light by the repetitive application of stress on the camphor crystal. The emission takes place by the application of static stress as well as impulsive stress. In the case of both stresses, the emission is observed a number of times but with decreasing intensity. The emission was studied by the static and impulsive devices being used in our own laboratory.
        Keywords
        Luminescence, Mechanoluminescence, Luminescent centre in camphor crystal.
        Citation
        JAGJEET KAUR, N. S. SURYANARAYANA, MEGHA DEWANGAN, VIKAS DUBEY, Mechanical bleaching / quenching of luminescent centres in camphor crystals, Optoelectronics and Advanced Materials - Rapid Communications, 4, 11, November 2010, pp.1697-1700 (2010).
        Submitted at: Oct. 22, 2010
 
        Accepted at: Nov. 10, 2010