Title :
Dynamic grating formation in As/sub 2/S/sub 3/
Author :
Ramachandran, Siddharth ; Bishop, S.G. ; Brady, David J.
Author_Institution :
Dept. of Electr. & Comput. Eng., Illinois Univ., Urbana, IL, USA
Abstract :
Summary form only given. This work focuses on using the photoexpansion effect to fabricate surface-grating structures and studying their applicability in photonic circuitry. Surface gratings with periods ranging from 2.95 /spl mu/m to 0.377 /spl mu/m were written holographically using 514.5-nm light from an argon ion laser. Gratings with 2.95 /spl mu/m period were also written for different exposure times to study the dose effect on surface-relief structures. Atomic force microscope (AFM) images of the irradiated surfaces were obtained. A He-Ne laser operating at 632.8 nm was used to measure diffraction efficiencies.
Keywords :
arsenic compounds; atomic force microscopy; chalcogenide glasses; holographic gratings; optical fabrication; optical glass; optical microscopy; 514.5 nm; 632.8 nm; Ar; As/sub 2/S/sub 3/; He-Ne; He-Ne laser; atomic force microscopy; diffraction efficiencies; dose effect; dynamic grating formation; fabrication; holography; irradiated surfaces; photoexpansion effect; photonic circuitry; surface gratings; surface-grating structures; surface-relief structures; Absorption; Crystals; Diffraction gratings; Electrons; Holography; Laser beams; Laser tuning; Optimized production technology; Photorefractive materials; Writing;
Conference_Titel :
Lasers and Electro-Optics, 1996. CLEO '96., Summaries of papers presented at the Conference on
Conference_Location :
Anaheim, CA, USA
Print_ISBN :
1-55752-443-2
