Open AccessGeneralized M 2 factor of truncated beams
Author(s) -
Luo Shi-rong,
Lyu Bai-Da,
Nan Sun
Publication year - 2004
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.53.2145
Subject(s) - beam (structure) , physics , factor (programming language) , order (exchange) , mathematical analysis , mathematics , optics , computer science , finance , economics , programming language
The generalized M2 factor of rotationally symmetric truncated beams is studied in detail by using the asymptotic analysis, generalized truncated second-order moments method and self-convergent beam width approach. The physical relation between the three methods and how to determine the generalized M2 factor in a unified way are analyzed and illustrated with numerical results.