Open AccessOFFAXIAL GAUSSIAN WAVE
Author(s) -
Xiaodong Zeng,
Liang Chen,
Yi An
Publication year - 1997
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.46.1932
Subject(s) - gaussian , divergence (linguistics) , physics , helmholtz equation , gaussian beam , helmholtz free energy , amplitude , phase (matter) , beam divergence , gaussian random field , optics , computational physics , gaussian function , beam diameter , quantum mechanics , philosophy , linguistics , boundary value problem , laser , laser beams
Based on a rigorous far field solution of the Helmholtz equation, a new method to describe the propagation of the offaxial Gaussian wave is presented. The amplitude and phase distribution, beam spot size, divergence angle, and the relation of the conservation of energy are discussed. It is found that for any Gaussian source the maximum divergence angle is shown to be 65.5.