Efficient generation of 200–230-nm radiation in beta barium borate by noncollinear sum-frequency mixing
- 20 November 1998
- journal article
- Published by Optica Publishing Group in Applied Optics
- Vol. 37 (33) , 7827-7831
- https://doi.org/10.1364/ao.37.007827
Abstract
Tunable ultraviolet radiation in the 200–230-nm region has been generated with beta barium borate crystals by type I sum-frequency mixing of the second harmonic with the fundamental beam from a dye laser pumped by the second harmonic of the same Nd:YAG laser. A noncollinear phase-matching configuration has made it possible to realize conversion efficiency of 21% at 208.3 nm with input power densities as low as 28 MW/cm2 for the fundamental and 2.4 MW/cm2 for its second-harmonic radiation. The absorption characteristic of a standard DNA sample has been studied with the generated tunable ultraviolet source, revealing additional features compared with those obtained with a spectrophotometer.Keywords
This publication has 11 references indexed in Scilit:
- Collinear and non-collinear sum-frequency mixing in?-BBO for a tunable 195?198 nm all-solid-state laser systemApplied Physics B Laser and Optics, 1995
- β-BaB2O4 single crystal growth by Czochralski method using α-BaB2O4 and β-BaB2O4 single crystals as starting materialJournal of Crystal Growth, 1993
- β-BaB2O4 single crystal growth by Czochralski method. IIJournal of Crystal Growth, 1991
- Beta barium borate (BBO)Applied Physics A, 1991
- A technique for the calculation of phase-matching angle for type-II noncollinear sum-frequency generation in negative uniaxial crystalsOptics Communications, 1991
- Analyses of Phase-Matching for Noncollinear Three-Wave Mixing in Uniaxial CrystalsJapanese Journal of Applied Physics, 1990
- Optical, mechanical, and thermal properties of barium borateJournal of Applied Physics, 1987
- Efficient generation of 200-nm light in β-BaB_2O_4Applied Optics, 1987
- Efficient deep-ultraviolet generation by frequency doubling in β-BaB_2O_4 crystalsOptics Letters, 1986
- Second-harmonic generation to 2048 Å in Β-Ba2O4IEEE Journal of Quantum Electronics, 1986