Propagation invariants of twisted Gaussian Schell-model beams |
| |
| Authors: | Baida Lü Yuanjie Peng |
| |
| Institution: | aCollege of Physics and Communication Electronics, Jiangxi Normal University, Nanchang 330027, China;bInstitute of Laser Physics and Chemistry, Sichuan University, Chengdu 610064, China |
| |
| Abstract: | The second-order moments method is used to study the M2 factor and intrinsic astigmatism of twisted Gaussian Schell-model (GSM) beams. It is shown that the M2 factor of twisted GSM beams defined by the determinate of the 4×4 variance matrix is a propagation invariant and is independent of the beam twist, whereas the twist affects the intrinsic astigmatism of twisted GSM beams. |
| |
| Keywords: | M2 factor Intrinsic astigmatism Twisted Gaussian Schell-model beam Second-order moment Variance matrix |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
