Determination of the refractive index profile of a polymer waveguide by photobleaching

Authors
Shan, JX Shen, QS Zhang, AH Cao, ZQ Chen, YL
Citation
Jx. Shan et al., Determination of the refractive index profile of a polymer waveguide by photobleaching, CHIN PHYS L, 17(6), 2000, pp. 433-434
Citations number
8
Categorie Soggetti
Physics
Journal title
CHINESE PHYSICS LETTERS
ISSN journal
0256307X → ACNP
Volume
17
Issue
6
Year of publication
2000
Pages
433 - 434
Database
ISI
SICI code
0256-307X(2000)17:6<433:DOTRIP>2.0.ZU;2-L
Abstract
The shrinkage effect of polymer films, which was demonstrated in our photob leaching experiment, can be fitted approximately by an exponentially decayi ng function. After taking the shrinkage effect into account, the index prof ile of the polymer waveguide was determined to be a Fermi function with the help of the m-line method and the exact transfer matrix theory.