Generation of pulsed Bessel-Gauss beams using passive axicon-theoretical and experimental studies

We studied the conditions for generating passive Bessel-Gauss beams by using an axicon. We designed an appropriate Gaussian resonator and extracted a quasi-fundamental Gaussian mode from a pulsed Nd:YAG laser pumped by a Xenon flash lamp and measured its parameters, such as propagation factor, diver...

Full description

Saved in:
Bibliographic Details
Published in:Applied optics (2004) 2012-10, Vol.51 (30), p.7339-7344
Main Authors: Parsa, Shahrzad, Fallah, Hamid Reza, Ramezani, Mohsen, Soltanolkotabi, Mahmood
Format: Article
Language:English
Subjects:
Apexes
Beams (radiation)
Flash lamps
Gaussian
Resonators
Semiconductor lasers
Xenon
YAG lasers
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We studied the conditions for generating passive Bessel-Gauss beams by using an axicon. We designed an appropriate Gaussian resonator and extracted a quasi-fundamental Gaussian mode from a pulsed Nd:YAG laser pumped by a Xenon flash lamp and measured its parameters, such as propagation factor, divergence angle, and Rayleigh range. Then we generated passive Bessel-Gauss beams using an axicon and investigated their propagation properties, theoretically and experimentally. For example, for the axicon of 1°, the output energy and the Rayleigh range of the generated Bessel-Gauss beams were measured to be 58 mJ and 229.3 mm, respectively. We compared these properties with our results of the Gaussian mode. Finally, by using axicons with different apex angles, and also by changing the beam spot size on the axicon, we generated Bessel-Gauss beams and studied their properties theoretically and experimentally.
ISSN:1559-128X
2155-3165
DOI:10.1364/AO.51.007339