Single-shot implementation of dispersion-scan for the characterization of ultrashort laser pulses

• Type: Article in International Scientific Journal
• Date: 2015

Authors

Fabris, D (Author) Other; Holgado, W (Author) Other; Silva, F (Author) Other; Witting, T (Author) Other; Tisch, JWG (Author) Other; Crespo, H (Author) FCUP

Journal

Title: Optics Express

Vol. 23

Pages: 32803-32808

ISSN: 1094-4087

Publisher: Optical Society of America

Indexing

ISI Web of Knowledge - 17 Citations

Scopus - 22 Citations

Scientific classification

FOS: Natural sciences > Physical sciences

Other information

Authenticus ID: P-00J-YWR

DOI: 10.1364/oe.23.032803

Abstract (EN): We demonstrate a single-shot ultrafast diagnostic, based on the dispersion-scan (d-scan) technique. In this implementation, rather than translating wedges to vary the dispersion as in scanning d-scan, the pulse to be measured experiences a spatially varying amount of dispersion in a prism. The resulting beam is then imaged into a second-harmonic generation crystal and an imaging spectrometer is used to measure the two-dimensional trace, which is analyzed using the d-scan retrieval algorithm. We compare the single-shot implementation with the scanning d-scan for the measurement of sub-3.5-fs pulses from a hollow core fiber pulse compressor. We show that the retrieval algorithm used to extract amplitude and phase of the pulse provides comparable results, proving the validity of the new single-shot implementation in the near single-cycle regime. (C)2015 Optical Society of America

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6