3 April 2000 Vector analysis of fast focusing by hyperbolic and spherical lenses
Author Affiliations +
Proceedings Volume 3889, Advanced High-Power Lasers; (2000) https://doi.org/10.1117/12.380869
Event: Advanced High-Power Lasers and Applications, 1999, Osaka, Japan
Abstract
The delivery of a high-power laser beam to the target area, either via fiber systems or free-space optical trains, requires an effective focusing optical element at the end of the delivering system. It can be derived that a hyperbolic lens has the optimal surface to achieve the best focusing effect. Using this type of lens, the rays representing the beam can make a large angle with respect to the axis and the incidence angle on the lens surface is far from normal. As a result, the ordinary scalar field theory with paraxial approximation is not valid in this case. In order to understand the performance of a hyperbolic lens, it is necessary to use the vector field theory and apply the Huygen's principle directly in the model. Using this method, we were able to show the performance of a hyperbolic lens is much better than that of a spherical lens.
© (2000) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Albert Y. Shih, Albert Y. Shih, Chun-Ching Shih, Chun-Ching Shih, } "Vector analysis of fast focusing by hyperbolic and spherical lenses", Proc. SPIE 3889, Advanced High-Power Lasers, (3 April 2000); doi: 10.1117/12.380869; https://doi.org/10.1117/12.380869
PROCEEDINGS
7 PAGES


SHARE
RELATED CONTENT

Specialty optical fibers: revisited
Proceedings of SPIE (October 06 2011)
The properties of polarization fibers
Proceedings of SPIE (December 28 2007)
The manufacturing of polarization optical fibres
Proceedings of SPIE (December 28 2007)
Gradients And Their Applications
Proceedings of SPIE (April 08 1988)

Back to Top