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An injection seeded narrow bandwidth pulsed optical parametric oscillator and its application to the investigation of hyperfine
 

Summary: An injection seeded narrow bandwidth pulsed optical parametric
oscillator and its application to the investigation of hyperfine
structure in the PF radical
James A. J. Fitzpatrick, Oleg V. Chekhlov,a)
John M. F. Elks, and Colin M. Westernb)
School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, United Kingdom
Stephen H. Ashworth
School of Chemical Sciences, University of East Anglia, Norwich NR4 7TJ, United Kingdom
Received 27 June 2001; accepted 31 July 2001
We describe the construction of an all solid-state, narrow bandwidth, pulsed optical parametric
oscillator OPO based on -barium borate nonlinear crystals. The OPO was injection seeded by an
external cavity diode laser in the range 755855 nm to generate high power narrow bandwidth
tunable light in this range and simultaneously at 606669 nm. The bandwidth of the visible light
was 130 MHz, and after frequency doubling or sum frequency mixing with the second harmonic
of the pump Nd:YAG laser, sub-Doppler spectra with an overall resolution of 450 MHz were taken
in the UV. The system is demonstrated by taking high-resolution spectra of the v 23 and 57
bands of the A 3
X 3
(v ,0) progression and the v 4v 0 band of the d 1
a 1

  

Source: Ashworth, Stephen H. - School of Chemical Sciences and Pharmacy, University of East Anglia

 

Collections: Chemistry