Publications [#280295] of David J. Brady
- Ramachandran, S; Bishop, SG; Brady, DJ, Dynamic grating formation in As2S3,
Conference Proceedings Lasers and Electro Optics Society Annual Meeting Leos
pp. 259-260, Anaheim, CA, USA
(last updated on 2019/11/21)
This work focuses on using the photoexpansion effect to fabricate surface-grating structures and studying the applicability in photonic circuitry. Surface gratings with periods ranging from 2.95 μm to 0.377 μm were written holographically using 514.5-nm light from an Argon ion laser. Gratings with 2.95-μm period were also written for different exposure times to study the dose effect on surface-relief structures. AFM images of the irradiated surfaces were obtained. A He-Ne laser operating at 632.8 nm enabled to measure diffraction efficiencies.
arsenic compounds;atomic force microscopy;chalcogenide glasses;holographic gratings;optical fabrication;optical glass;optical microscopy;