MG2 factor of truncated Laguerre-Gaussian beams
-
1.
Institute of Laser Physics & Chemistry, Sichuan University, Chengdu 610064, China;
-
2.
College of Physics & Communication Electronics, Jiangxi Normal University, Nanchang 330027, China
-
Received Date:
2003-05-26
Accepted Date:
2003-07-09
-
Abstract
The generalized beam propagation factor(MG2 factor) of circularly symmetric truncated Laguerre-Gaussian beams is studied using the generalized truncated second-order moments method. A closed-form expression for the MG2 factor is derived and illustrated with numerical example. It is found that the MG2 factor of circularly symmetric truncated Laguerre-Gaussian beams depends on the truncation parameter and beam order,and asymptotically approaches the value of circularly symmetric untruncated Laguerre-Gaissain beams as the truncated parameter increases.
-
-
References
[1]
|
SIEGMAN A E.Lasers.California: Univeristy Science Books Mill Valley,1986.647. |
[2]
|
吕百达.激光光学--激光束的传输变换和光束质量控制.成都:四川大学出版社,1992.67.
|
[3]
|
卿与三,吕百达. 激光技术,2002,26(3):174~176.
|
[4]
|
ISO/TC 172/SC 91 WG1N80,ISO/DIS,1995: 11146. |
[5]
|
MARTINEZ-HERRERO R,MEJIAS P M.Opt Lett,1993,18:1669~1671. |
[6]
|
PARE C,BELANGER P A.Opt Commun,1996,123:679~693. |
[7]
|
AMARANDE S,GIESEN A,HGEL H.Appl Opt,2000,39: 3914~3924. |
[8]
|
COLLINS S A. J O S A,1970,60:1168~1177. |
[9]
|
ERDELYI A.Tables of integral transforms. New York: McGraw-Hill,1954.431. |
[10]
|
LU B D,LUO S R.Opt Commun,2000,178: 275~281. |
-
-
Proportional views
-