Generation of high-energy broadband femtosecond deep-ultraviolet pulses by highly nondegenerate noncollinear four-wave mixing in a thin transparent solid

• Type: Article in International Scientific Journal
• Date: 2013

Authors

Rosa Weigand (Author) Other; Helder M Crespo (Author) FCUP

Journal

Title: Applied Physics B: Lasers and Optics

Vol. 111

Pages: 559-565

ISSN: 0946-2171

Publisher: Springer Nature

Indexing

ISI Web of Knowledge - 5 Citations

Scopus - 5 Citations

Scientific classification

FOS: Natural sciences > Physical sciences

Other information

Authenticus ID: P-006-A8R

DOI: 10.1007/s00340-013-5373-x

Abstract (EN): We present a simple and efficient technique for the generation of ultrashort deep-ultraviolet pulses based on four-wave mixing of noncollinear laser pulses in a thin solid. Sub-30-fs pulses (Fourier-limit of 13 fs) centered at 270 nm, with energies up to 6 mu J, were obtained by mixing the fundamental and the second harmonic of a Ti:sapphire amplifier in fused silica. Temporal characterization was performed with a dispersionless self-diffraction FROG setup. Spectra as broad as 20 nm were also obtained that can in principle support sub-4-fs deep-ultraviolet pulses.The results are well described by two-dimensional numerical simulations.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 7