Article contents
Time-resolved studies of short pulse laser-produced plasmasin silicon dioxide near breakdown threshold
Published online by Cambridge University Press: 15 February 1999
Abstract
Using the technique of frequency-domain interferometry, we demonstrate a new way of studying laser-induced breakdown at the surface of dielectric materials. A theoretical model based on electron production by multiphoton ionisation, inverse bremsstrahlung heating, and collisional ionisation is in quantitative agreement with both the detailed time variation of the dielectric constant and the pulse width variation of the fluence threshold. From the complex reflection coefficient measured with the two probe pulse polarisations in quadrature, we deduce the time variation of the dielectric constant of silica during breakdown.
- Type
- Research Article
- Information
- The European Physical Journal - Applied Physics , Volume 5 , Issue 2 , February 1999 , pp. 163 - 169
- Copyright
- © EDP Sciences, 1999
References
- 6
- Cited by