Solid immersion holographic recording in amorphous chalcogenide thin films

Abstract

A solid immersion holographic method for the recording of refractive-index and surface-relief modulated gratings with a period of 0.2-1 lm in amorphous films of chalcogenide semiconductors As 2 S 3 and As-SSe has been developed and studied. The angular selectivity of holographic recording in amorphous chalcogenide thin films can be improved significantly by a decrease of grating period. The possibility to use the amorphous chalcogenide films as a media for holographic recording and storage of information with high density is discussed.

Luminescence Study of Detergent Optical Brighteners in the Context of Developing Optical Environmental Sensors for Water Quality Control

“…The reason we follow the transmisivity sensitivity experiments when an efficient luminescence method has been demonstrated, is that apart from a specific single problem of effluent anthropogenic load comparing an opportunity to use the Optical Recording Laboratory experimental experience to record subwavelength-period gratings in amorphous chalcogenide thin films [7][8][9] might prove perspective for lattice tunable environmental and evanescent-wave sensors. As the ability to fabricate low-loss photoinduced channel waveguides in chalcogenide glasses have been demonstrated [10], advances towards online distributed environmental monitoring sensor networks may prove attainable with continued investigations.…”