By Topic

Properties of leaky and degenerate modes in a prism–film coupler with waveguide structure

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

The purchase and pricing options are temporarily unavailable. Please try again later.
9 Author(s)
Zhang, Xi-Jing ; National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, People’s Republic of China ; Fan, Xi-Zhi ; Yan, Jun ; Fei Xu
more authors

Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1063/1.1624485 

A laser beam can be efficiently fed into a planar thin film by means of a prism–film coupler. The properties of the cavity modes, the coupling efficiency, the optimum coupling condition, etc. of the prism–film coupler can be explained using the theory developed by Tien and Ulrich [P. K. Tien and R. Ulrich, J. Opt. Soc. Am. 60, 1325 (1970)]. Based on multiple scattering and multiple wave interference, we propose a theory of the two modes referred to as the leaky and degenerate modes. The properties of the two kinds of modes, such as positions, linewidths, angular spectrum of the leaky mode, and the degenerate mode spectrum are studied in detail. This theory gives an excellent explanation of the underlying origin of light wave propagation in the prism–film coupler. © 2003 American Institute of Physics.

Published in:

Journal of Applied Physics  (Volume:94 ,  Issue: 11 )