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Please use this identifier to cite or link to this item: http://eprint.iitd.ac.in/handle/2074/2354

Title: Frequency blueshift during laser-induced breakdown of dielectrics
Authors: Gupta, D N
Viswakarma, Nitikant
Keywords: ultra-fast pulses
electron-hole pair
Issue Date: 2004
Citation: Plasma Science, ICOPS IEEE Conference Record - Abstracts The 31st IEEE International Conference on, 449
Abstract: y form only given. A phenomenological model of frequency blueshift during laser breakdown of dielectrics by ultra-fast pulses is developed. The time scale is too short for heat conduction and diffusion consequently interaction is spatially localized. Laser causes electron-hole pair production via tunneling of valence electrons to conduction band, Joule heating and avalanche production of electron-hole pairs, via collisions. As the free carrier density rises, refractive index decreases, modulating the phase of the laser and causing frequency blueshift.
URI: http://eprint.iitd.ac.in/dspace/handle/2074/2354
Appears in Collections:Energy Studies [CES]

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