Deep ultraviolet diamond Raman laser

Eduardo Granados*, David J. Spence, Richard P. Mildren

*Corresponding author for this work

Research output: Contribution to journalArticle

60 Citations (Scopus)

Abstract

We present a synchronously pumped diamond Raman laser operating at 275.7 nm pumped by the 4th harmonic of a mode locked Nd:YVO4 laser. The laser had a threshold pump pulse energy of 5.8 nJ and generated up to 0.96 nJ pulses at 10.3% conversion efficiency. The results agree well with a numerical model that includes two-photon absorption of the pump and Stokes beams and uses a Raman gain coefficient of diamond of 100 cm/GW. We also report on the observation of nanometer scale two-photon assisted etching of the diamond crystal surfaces.

Original languageEnglish
Pages (from-to)10857-10863
Number of pages7
JournalOptics Express
Volume19
Issue number11
DOIs
Publication statusPublished - 23 May 2011

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