Ultrabroadband phase-matched optical parametric generation in the ultraviolet by use of guided waves
- Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, Michigan 48109-2099 (United States)
We present what is believed to be the first experimental demonstration of guided-wave phase-matched frequency mixing and harmonic conversion in gases. Broad-bandwidth ultrafast pulses, tunable around 270 nm, were generated from an ultrafast Ti:sapphire amplifier system using 2{omega}+2{omega}{minus}{omega} parametric wave mixing in a capillary waveguide. We achieved nonresonant phase matching by coupling both the fundamental and the second-harmonic light into the lowest-order mode. The output 3{omega} pulses have an energy of {gt}4 {mu}J at a 1-kHz repetition rate. Simple extensions of this method can generate higher-energy 10{endash}20-fs pulses tunable throughout the vacuum ultraviolet. {copyright} {ital 1997} {ital Optical Society of America}
- OSTI ID:
- 633978
- Journal Information:
- Optics Letters, Journal Name: Optics Letters Journal Issue: 20 Vol. 22; ISSN 0146-9592; ISSN OPLEDP
- Country of Publication:
- United States
- Language:
- English
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