All pseudo-Schell model sources have been shown to possess the same continuous set of circularly symmetric modes, all of them presenting a conical wavefront. For keeping energy at a finite level, the mode amplitude along the radial coordinate is modulated by a decreasing exponential function. A peculiar property of such modes is that they exist in the Laplace transform’s realm. After a brief discussion of the near-zone, we pass to the far-zone, where the field can be evaluated in closed form. The corresponding features of the intensity distribution are discussed.
Santarsiero, M., Martinez-Herrero, R., Piquero, G., de Sande, J.C.G., & Gori, F. (2021). Modal analysis of pseudo-schell model sources. PHOTONICS, 8(10), 449 [10.3390/photonics8100449].