| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 734678 | Optics & Laser Technology | 2008 | 5 Pages |
Abstract
The propagation of flat-topped beams passing through paraxial ABCD optical system is investigated based on the propagation formulas of Gaussian beam. The focal shift of focused coherent flat-topped beam is also studied in detail. Analytical expressions of the M2M2 factor and the far-field intensity distribution for flat-topped beams are derived on the basis of second-order moments.
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Authors
Guohua Wu, Qihong Lou, Jun Zhou, Jingxing Dong, Yunrong Wei, Zhouping Su,