Time-resolved emission spectroscopy in shocked PETN single crystals

Dreger, Zbigniew A.; Gruzdkov, Yuri A.; Gupta, Yogendra M.; Dick, Jerry J.
April 2000
AIP Conference Proceedings;2000, Vol. 505 Issue 1, p933
Academic Journal
Time-resolved emission spectroscopy was used to probe molecular changes in pentaerythritol tetranitrate (PETN) single crystals shocked along the [100] and [110] orientations. Temporal and spectral characteristics of emission were determined in thin crystals subjected to stepwise loading to 10 GPa. The emission data were analyzed in conjunction with absorption measurements performed under the same loading conditions. The temporal and spectral features of the emission were found to be dependent on both the final stress and crystal orientation. In addition, the spectra change with time and display the presence of two components. Possible origin of the observed light emission is discussed briefly.


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