Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
734672 | Optics & Laser Technology | 2008 | 6 Pages |
Abstract
Starting from the propagation law of partially coherent light, the focusing properties of twisted Gaussian Schell-model (TGSM) beams passing through an optical system consisting of an aperture lens or through a system consisting of a separated aperture and lens are studied. The propagation expressions for focused TGSM beams have been derived. Our main attention is focused on the effect of the coherence of partially coherent light, the twist parameter and the distance between the aperture and lens on the focusing properties of TGSM beams. Numerical calculation results are given to illustrate how the coherence of partially coherent light, the twist parameter and the distance between the aperture and lens affect the axial irradiance in the focused field.
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Authors
Liuzhan Pan, Chaoliang Ding, Baida Lü,