| Title | Characterization of waveguide and grating formation in As2S3 |
| Publication Type | Conference Paper |
| Year of Publication | 1994 |
| Authors | JP Guo, S Ramachandran, SG Bishop, and DJ Brady |
| Conference Name | IEEE LEOS Annual Meeting - Proceedings |
| Date Published | 12/1994 |
| Abstract | Photodarkening in the chalcogenide glass As 2 S 3 makes it attractive for applications in integrated optics and data storage Various optical devices can be fabricated using the laser-induced change of refractive index in this material. Waveguides, directional couplers, and holographic gratings have been fabricated on thin films and bulk samples of As 2 S 3 . This paper reports studies of the dynamics of waveguide and grating formation on the surface of bulk As 2 S 3 . Spatial and temporal characteristics of laser-induced refractive index changes are described. Several different material effects are shown to contribute to the index modulation. |