Papers Published

1. Ramachandran, S; Bishop, SG; Guo, JP; Brady, DJ, Fabrication of holographic gratings in As2S3 glass by photoexpansion and photodarkening, Ieee Photonics Technology Letters, vol. 8 no. 8 (August, 1996), pp. 1041-1043, Institute of Electrical and Electronics Engineers (IEEE) [68.508731], [doi] .
   (last updated on 2023/06/01)

   Abstract:
   The spatial dynamics of the photo-induced surface relief and phase gratings in As2S3 glass are described. Excursion amplitudes up to 150 nm and grating efficiencies up to 27% are observed. Depth and resolution limits for the effect are measured and a model for the resolution limit is proposed.

   Keywords:
   Optical glass;Arsenic compounds;Photochromism;Mathematical models;Optical variables measurement;Atomic force microscopy;Semiconductor device manufacture;Semiconductor device structures;Laser beams;Interferometers;Helium neon lasers;