Published July 2014 | Version v1
Journal article Metadata-only

Backward angular distribution of air lasing induced by femtosecond laser filamentation

Creators

  • 1. Institute of Modern Optics, Nankai University, Key Laboratory of Optical Information Science and Technology, Ministry of Education, Tianjin 300071 (China)
  • 2. Département de physique, de genie physique et d'optique, Centre d'optique, Photonique et Laser (COPL), Université Laval, Québec, QC G1V 0A6 (Canada)

Description

Angular distribution of the backscattered nitrogen fluorescence induced by femtosecond laser filamentation in air has been studied. The experimental results demonstrate that the fluorescence intensity forms multiple rings and is amplified in the backward direction through amplified spontaneous emission (ASE). More importantly, the ASE signal features an angular dependent gain coefficient. The results are valuable for the optimization of the remote-sensing setup by the filamentation in air. (letters)

Availability note (English)

Available from http://dx.doi.org/10.1088/1612-2011/11/7/075401

Additional details

Identifiers

DOI
10.1088/1612-2011/11/7/075401;

Publishing Information

Journal Title
Laser physics letters (Internet)
Journal Volume
11
Journal Issue
7
Journal Page Range
[05 p.]
ISSN
1612-202X

INIS

Country of Publication
Germany
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
46053969
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Descriptors DEI
AIR; ANGULAR DISTRIBUTION; FLUORESCENCE; GAIN; LASER RADIATION; NITROGEN; OPTIMIZATION; REMOTE SENSING; SIGNALS
Descriptors DEC
AMPLIFICATION; DISTRIBUTION; ELECTROMAGNETIC RADIATION; ELEMENTS; EMISSION; FLUIDS; GASES; LUMINESCENCE; NONMETALS; PHOTON EMISSION; RADIATIONS