Radiation produced by femtosecond laser-plasma interaction during dielectric breakdown

C. W. Carr, M. D. Feit, A. M. Rubenchik, P. De Mange, S. O. Kucheyev, M. D. Shirk, H. B. Radousky, S. G. Demos

Research output: Contribution to journalArticlepeer-review

23 Scopus citations


Optical breakdown by femtosecond and nanosecond laser pulses in transparent dielectrics produces an ionized region of dense plasma confined within the bulk of the material. This ionized region is responsible for broadband radiation that accompanies the breakdown process. Spectroscopic measurements of the accompanying light have been used to show that, depending on the laser parameters, the spectra may originate from plasma-induced second-harmonic generation, supercontinuum generation, or thermal emission by the plasma. By monitoring the emission from the ionized region, one can ascertain the predominant breakdown mechanism and the morphology of the damage region.

Original languageEnglish (US)
Pages (from-to)661-663
Number of pages3
JournalOptics Letters
Issue number6
StatePublished - Mar 15 2005
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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