Generation of high-energy vacuum UV femtosecond pulses by multiple-beam cascaded four-wave mixing in a transparent solid

• Type: Article in International Scientific Journal
• Date: 2011

Authors

Joao L Silva (Author) Other; Helder M Crespo (Author) FCUP; Rosa Weigand (Author) Other

Journal

Title: Applied Optics

Vol. 50 No. 4

Pages: 1968-1973

ISSN: 1559-128X

Publisher: Optical Society of America

Indexing

ISI Web of Knowledge - 13 Citations

Scopus - 14 Citations

Scientific classification

FOS: Natural sciences > Physical sciences

Other information

Authenticus ID: P-002-RGV

DOI: 10.1364/ao.50.001968

Abstract (EN): The generation of ultrashort vacuum UV (VUV) pulses by nondegenerate cascaded four-wave mixing of femtosecond pulses in a thin slide of a large band-gap transparent solid is numerically demonstrated. Using a novel noncollinear multiple-beam configuration, cascaded four-wave mixing of amplified 30 fs Ti:sapphire laser pulses at 800 nm, and their second harmonic in lithium fluoride results in the generation of VUV radiation down to 134nm with energies in the mu J range and durations comparable to those of the pump pulses. The proposed geometry is advantageous in large dispersion scenarios, namely for generating radiation close to absorption bands. Hence these results set this technique as a promising way to efficiently generate ultrashort VUV radiation in solids for several applications in science and technology. (C) 2011 Optical Society of America

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6