14 October 2005 Modelling pulse propagation through homogeneous and inhomogeneous dielectrics
Author Affiliations +
Abstract
A general concept based on harmonic decomposition of pulses has been introduced to model ultra short pulse propagation through homogeneous and inhomogeneous dielectrics. This include propagation through free space, apertures and lens systems. This approach permits us to consider pulses of any arbitrary spatial and temporal characteristics. The pulse characteristics are found to be affected by angular and material dispersion. A computationally efficient method for the proper sampling of spectral phase has been introduced which requires only a minimum number of harmonic fields for the simulation. In the case of free space propagation, pulses maintains their shape but experience temporal and spectral shifts whose magnitudes depends on angular dispersion (diffraction angle). The pulse broadens, becomes asymmetric and chirped in dispersive media because of group velocity dispersion and higher order dispersion in the media. The pulse broadens due to radially varying group delay and group delay dispersion on propagation through focusing elements. The pulse energy at the focus is affected by the interplay of spherical and chromatic aberration by distributing the pulse energy over a large region on the axis.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Suhas Poyyil Veetil, Suhas Poyyil Veetil, Hagen Schimmel, Hagen Schimmel, Frank Wyrowski, Frank Wyrowski, } "Modelling pulse propagation through homogeneous and inhomogeneous dielectrics", Proc. SPIE 5962, Optical Design and Engineering II, 596208 (14 October 2005); doi: 10.1117/12.625129; https://doi.org/10.1117/12.625129
PROCEEDINGS
12 PAGES


SHARE
RELATED CONTENT

Diffraction operators in paraxial approach
Proceedings of SPIE (July 16 2014)
Wave propagation through complex wall structures
Proceedings of SPIE (June 21 2011)
Inhomogeneous Field MSFVW-Optical Interaction
Proceedings of SPIE (March 09 1987)
Teaching Fourier optics for engineers
Proceedings of SPIE (October 12 1995)
Far-field characteristics of pulsed spherical beams
Proceedings of SPIE (April 29 2003)

Back to Top