Surface relief grating recording with different period on chalcogenide nanomultilayers

Abstract

Chalcogenide glasses nanomultilayer structures based on As2S3-Se were used for direct surface relief grating formation by polarization holographic recording. The SRG depth in dependence of grating period was investigated. Analyses of diffraction efficiency kinetics and AFM images of recorded SRG showed that grating period increasing led to the SRG depth increasing in linear way. It is revealed that SRG recording rate is much more for gratings with greater periods, while the modulation depth remains approximately the same for all gratings and consists about 0.22.