Focusing properties of Gaussian Schell-model beams by an astigmatic aperture lens

This paper studies the focusing properties of Gaussian Schell-model(GSM) beams by an astigmatic aperture lens. It is shown that theaxial irradiance distribution, the maximum axial irradiance and itsposition of focused GSM beams by an astigmatic aperture lens dependupon the astigmatism of the lens, the coherence of partiallycoherent light, the truncation parameter of the aperture and Fresnelnumber. The numerical calculation results are given to illustratehow these parameters affect the focusing property.