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http://hdl.handle.net/2074/2354
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| 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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| guptafre2004.pdf | | 20Kb | Adobe PDF | View/Open |
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