Anomalous spectral behavior of vectorial apertured ultrashort pulsed beams beyond the paraxial approximation

• Published in: Optics communications Vol. 281; no. 4; pp. 521 - 526
• Main Authors: Yang, Yuanjie, Duan, Kailiang, Li, Yude
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 15.02.2008; Elsevier Science
• Subjects: Circular aperture; Diffraction and scattering; Exact sciences and technology; f-Parameter; Fundamental areas of phenomenology (including applications); Optics; Physics; Spectral switch; Vector Rayleigh diffraction integrals; Vectorial nonparaxial ultrashort pulse; Wave optics; Vector Rayleigh diffraction integrals; Circular aperture; f-Parameter; Spectral switch; Vectorial nonparaxial ultrashort pulse; Electromagnetic wave diffraction; Singular optics; Theoretical study; Geometrical optics; Diffraction integral; Gaussian beam; Ultrashort pulse; Pulsed beam; Analytical solution; Phase singularity

Based on the vectorial Rayleigh diffraction integrals, the analytical expression for the spectral intensity of a vectorial nonparaxial ultrashort pulsed Gaussian beam diffracted at a circular hard-aperture is derived. The effect of f-parameter ( f = 1/ k 0 w 0) on the spectral anomalies near phase s...