期刊
APPLIED PHYSICS LETTERS
卷 89, 期 17, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.2364880
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- ICREA Funding Source: Custom
The authors report efficient third harmonic generation of microjoule picosecond pulses at 355 nm in the nonlinear optical material BiB3O6. Using two crystals of BiB3O6 cut for type I (e+e -> o) phase matching in optical yz plane for second and third harmonic generation and fundamental pulses from a mode-locked, amplified picosecond Nd:YAG laser at 1.064 mu m, they have achieved conversion efficiencies of as much as 50% at 355 nm. Third harmonic pulse energies of up to 216 mu J in 29 ps pulses at 25 Hz repetition rate have been obtained for 35 ps fundamental pulses. They have also determined the magnitude of two-photon absorption coefficient in BiB3O6 at 355 nm to be 0.71 and 1.37 cm/GW for ordinary and extraordinary polarizations, respectively. (c) 2006 American Institute of Physics.
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