Ultrashort millijoule-level amplification in Ti:sapphire at 1 kHz and third harmonic conversion measurements

Justin Peatross; Sterling John Backus; Kendall Read; Chung-Po Huang; Margaret M. Murnane; Henry C. Kapteyn

doi:10.1117/12.239726

8 May 1996 Ultrashort millijoule-level amplification in Ti:sapphire at 1 kHz and third harmonic conversion measurements

Justin Peatross, Sterling John Backus, Kendall Read, Chung-Po Huang, Margaret M. Murnane, Henry C. Kapteyn

Proceedings Volume 2701, Generation, Amplification, and Measurement of Ultrashort Laser Pulses III; (1996) https://doi.org/10.1117/12.239726
Event: Photonics West '96, 1996, San Jose, CA, United States

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.

Citation Download Citation

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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