Paper
8 May 1996 Ultrashort millijoule-level amplification in Ti:sapphire at 1 kHz and third harmonic conversion measurements
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Abstract
We report on a Ti:sapphire amplifier system which produces 21 fs, 1 mJ pulses at 1 kHz. A nanojoule-level seed pulse makes 8 passes through a highly doped Ti:sapphire crystal for a total gain of approximately 106. The crystal is pumped with 12 mJ of 527 nm light which is converted into amplified pulse energy with an efficiency exceeding 10%. We have used this laser system to generate ultra-short UV light pulses through third harmonic generation. By focusing the 21 fs pulses in argon and other gases (including air), we obtain UV pulses with energy 1 (mu) J and wavelength 267 nm. The duration of the UV pulses was measured to be approximately 16 fs, representing the shortest pulses in this wavelength range measured to date.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Justin Peatross, Sterling John Backus, Kendall Read, Chung-Po Huang, Margaret M. Murnane, and Henry C. Kapteyn "Ultrashort millijoule-level amplification in Ti:sapphire at 1 kHz and third harmonic conversion measurements", Proc. SPIE 2701, Generation, Amplification, and Measurement of Ultrashort Laser Pulses III, (8 May 1996); https://doi.org/10.1117/12.239726
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KEYWORDS
Mirrors

Ultraviolet radiation

Crystals

Argon

Pulsed laser operation

Amplifiers

Laser systems engineering

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