Characterization of sub-two-cycle pulses from a hollow-core fiber compressor in the spatiotemporal and spatiospectral domains

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

Authors

Benjamin Alonso (Author) Other; Miguel Miranda (Author) Other; Francisco Silva (Author) Other; Vladimir Pervak (Author) Other; Jens Rauschenberger (Author) Other; Julio San Roman (Author) Other; Inigo J Sola (Author) Other; Helder Crespo (Author) FCUP

Journal

The Journal is awaiting validation by the Administrative Services.

Title: APPLIED PHYSICS B-LASERS AND OPTICS

Vol. 112

Pages: 105-114

ISSN: 0946-2171

Indexing

ISI Web of Knowledge - 26 Citations

Scopus - 28 Citations

Scientific classification

FOS: Natural sciences > Physical sciences

Other information

Authenticus ID: P-006-8P7

DOI: 10.1007/s00340-013-5406-5

Abstract (EN): We have post-compressed 25 fs (Fourier limit) amplified pulses in an argon-filled hollow-core fiber. The output pulses were compressed using a pair of wedges and chirped mirrors down to 4.5 fs (Fourier limit of 4.1 fs), which corresponds to less than two optical cycles. We then performed the characterization of the pulses by combining the d-scan and the STARFISH techniques. The temporal (and spectral) measurement of the pulses is done with d-scan, which is used as the reference to extend the characterization to the spatiotemporal (and spatiospectral) amplitude and phase of the pulses by means of STARFISH. The post-compressed pulses at the output of the hollow-fiber had an energy of 150 mu J. The analysis of the pulses revealed larger spectral broadening and blue-shift, and shorter duration at the center of the beam. For the first time, we demonstrate the complete characterization of intense ultra-broadband pulses in the sub-two-cycle regime, which provides an improved insight into the properties (space-time and space-frequency) of the pulses and is highly relevant for their applications.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 10