Efficient second Stokes Raman conversion in hydrogen

Journal Article · Fri Mar 01 04:00:00 EST 1991 · Journal of the Optical Society of America, Part B: Optical Physics; (USA)

DOI:https://doi.org/10.1364/JOSAB.8.000562· OSTI ID:5731327

Reiser, C; Raymond, T D ^[1]; Michie, R B ^[2]

---

1. Sandia National Laboratories, Albuquerque, New Mexico 87185 (US)
2. Mission Research Corporation, Albuquerque, New Mexico 87106 (USA)

We report cascade Raman generation of 313-nm radiation by second Stokes Raman shifting 248-nm pulses in H{sub 2}. A single seed generator was used to produce the first and second Stokes seed beams. Both collinear- and crossed-beam amplifier configurations were investigated. A peak conversion efficiency of 43% was obtained in a 2-m amplifier cell containing 16 atm of hydrogen. Under optimized conditions, the phase front of the second Stokes beam exhibited only a fraction of a wave of aberration. We find that a trade-off between high beam quality and high conversion efficiency exists in a system that relies on a single seed generator.

• DOE Contract Number: AC04-76DP00789
• OSTI ID: 5731327
• Journal Information: Journal of the Optical Society of America, Part B: Optical Physics; (USA), Journal Name: Journal of the Optical Society of America, Part B: Optical Physics; (USA) Vol. 8:3; ISSN JOBPD; ISSN 0740-3224
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
426002* -- Engineering-- Lasers & Masers-- (1990-)
CONVERSION
ELEMENTS
ENERGY CONVERSION
EXCIMER LASERS
FREQUENCY MIXING
GAS LASERS
HARMONIC GENERATION
HYDROGEN
LASERS
NONMETALS
OPTICAL PUMPING
PHASE SHIFT
PUMPING
RAMAN EFFECT