Photoinduced mass transport in low molecular organic glasses and its practical application in holography

• The synthesis of low molecular amorphous diazocompound KRJ-8 was described.
• Optically homogeneous films were prepared, and their transmission spectra were presented.
• Relief holograms without chemical etching operation were recorded on the films.
• Comparison with other previously published amorphous light-sensitive media was made.

In this paper we present the synthesis and optical properties of amorphous low molecular compound 4-((4-(bis(5,5,5-Triphenylpentyl)amino)phenyl)diazenyl)benzoic acid. The surface relief gratings formation by polarization holography method on these thin films (thicknesses are 200–1700 nm) was shown. The dependence of the surface relief modulation on various parameters: recording exposure dose, the polarization state of the recording beams, the grating period and the film thickness of the material was demonstrated. Values of surface tension at the air-film before and after irradiation of the substance by polarized radiation were measured.The efficiency of surface relief formation in different medium was compared. The possibility of practical application of 4-((4-(bis(5,5,5-Triphenylpentyl)amino)phenyl)diazenyl)benzoic acid in the holography as a non-etching photoresist was showed.