Cascaded nondegenerate four-wave-mixing technique for high-power single-cycle pulse synthesis in the visible and ultraviolet ranges

• Type: Article in International Scientific Journal
• Date: 2009

Authors

Weigand, R (Author) Other; Mendonca, JT (Author) Other; Crespo, HM (Author) FCUP

Journal

Title: Physical Review A - Atomic, Molecular, and Optical Physics

Vol. 79

ISSN: 1050-2947

Publisher: American Physical Society

Indexing

ISI Web of Knowledge - 46 Citations

Scopus - 45 Citations

Scientific classification

FOS: Natural sciences > Physical sciences

Other information

Authenticus ID: P-003-JWY

DOI: 10.1103/physreva.79.063838

Abstract (EN): We present a technique to synthesize high-power single-cycle pulses in the visible and ultraviolet ranges by coherent superposition of a multiband octave-spanning spectrum obtained by highly nondegenerate cascaded four-wave mixing of femtosecond pulses in bulk isotropic nonresonant media. The generation of coherent spectra spanning over two octaves in bandwidth is experimentally demonstrated using a thin fused silica slide. Full characterization of the intervening multicolored fields using frequency-resolved optical gating, where multiple cascaded orders have been measured simultaneously, supports the possibility of direct synthesis of near-single-cycle 2.2 fs visible-uv pulses without recurring to complex amplitude or phase control, which should enable many applications in science and technology.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 5