High-power fifth-harmonic generation of femtosecond pulses in the vacuum ultraviolet using a Ti:sapphire laser | Zendy

Pancho Tzankov | Zendy; O. Steinkellner | Zendy; Jiaan Zheng | Zendy; Mark Mero | Zendy; Wolfgang Freyer | Zendy; A. Husakou | Zendy; И. Бабушкин | Zendy; Joachım Herrmann | Zendy; F. Noack | Zendy

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High-power fifth-harmonic generation of femtosecond pulses in the vacuum ultraviolet using a Ti:sapphire laser

Author(s) -

Pancho Tzankov,

O. Steinkellner,

Jiaan Zheng,

Mark Mero,

Wolfgang Freyer,

A. Husakou,

И. Бабушкин,

Joachım Herrmann,

F. Noack

Publication year - 2007

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.15.006389

Subject(s) - optics , materials science , laser , femtosecond , sapphire , high harmonic generation , ti:sapphire laser , harmonic , pulse (music) , ultrashort pulse , pulse duration , waveguide , argon , optoelectronics , physics , atomic physics , quantum mechanics , detector

We demonstrate the generation of fifth-harmonic pulses at 161 nm, with an energy of up to 600 nJ and 160 fs pulse duration from a Ti:sapphire laser at 1 kHz repetition rate by four-wave difference-frequency mixing in argon-filled waveguides. The efficiency is greatly improved by coupling to higher-order transverse modes, as well as by coating the inner surface of the waveguide. A numerical model of the process yields an understanding of the main effects influencing the harmonic generation.

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