Spallative ablation of dielectrics by X-ray laser
Abstract
Short laser pulse in wide range of wavelengths, from infrared to X-ray, disturbs electron-ion equilibrium and rises pressure in a heated layer. The case where pulse duration is shorter than acoustic relaxation time is considered in the paper. It is shown that this short pulse may cause thermomechanical phenomena such as spallative ablation regardless to wavelength. While the physics of electron-ion relaxation on wavelength and various electron spectra of substances: there are spectra with an energy gap in semiconductors and dielectrics opposed to gapless continuous spectra in metals. The paper describes entire sequence of thermomechanical processes from expansion, nucleation, foaming, and nanostructuring to spallation with particular attention to spallation by X-ray pulse.
Keywords
Cite
@article{arxiv.0912.3184,
title = {Spallative ablation of dielectrics by X-ray laser},
author = {N. A. Inogamov and V. V. Zhakhovsky and A. Ya. Faenov and V. A. Khokhlov and V. V. Shepelev and I. Yu. Skobelev and Y. Kato and M. Tanaka and T. A. Pikuz and M. Kishimoto and M. Ishino and M. Nishikino and Y. Fukuda and S. V. Bulanov and T. Kawachi and Yu. V. Petrov and S. I. Anisimov and V. E. Fortov},
journal= {arXiv preprint arXiv:0912.3184},
year = {2015}
}