Influence of thickness and polarization on diffraction efficiency of direct patterned diffraction gratings in carbazole-based azopolymer films
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LOSHMANSKY, Constantin; MESHALKIN, Alexei; ACHIMOVA, Elena; ABASHKIN, Vladimir; PRISACAR, Alexandr; CAZAC, Veronica; POGREBNOI, Serghei; MACAEV, Fliur. Influence of thickness and polarization on diffraction efficiency of direct patterned diffraction gratings in carbazole-based azopolymer films. In: Microelectronics and Computer Science. Ediția 9, 19-21 octombrie 2017, Chisinau. Chișinău, Republica Moldova: Universitatea Tehnică a Moldovei, 2017, pp. 84-87. ISBN 978-9975-4264-8-0.
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Microelectronics and Computer Science
Ediția 9, 2017
Conferința "Microelectronics and Computer Science"
Chisinau, Moldova, 19-21 octombrie 2017

Influence of thickness and polarization on diffraction efficiency of direct patterned diffraction gratings in carbazole-based azopolymer films

Pag. 84-87

Loshmansky Constantin1, Meshalkin Alexei1, Achimova Elena1, Abashkin Vladimir1, Prisacar Alexandr1, Cazac Veronica1, Pogrebnoi Serghei2, Macaev Fliur2
 
1 Institute of Applied Physics, Academy of Sciences of Moldova,
2 Institute of Chemistry of the Academy of Sciences of Moldova
 
Disponibil în IBN: 23 octombrie 2017


Rezumat

In this paper we report on direct holographic recording of surface relief gratings in carbazole-based azopolymers. Azo dye Disperse Orange 3 was chemically bonded to oligomer poly-N-(epoxypropyl carbazole) making surface deformation efficient in the presence of optical field gradient. Optimal of the film thickness were determined. Holographic recording at different polarization configurations showed that the P:P polarization of recording beams provides the maximum of diffraction efficiency about 33%. Investigation of the obtained gratings revealed that this value of diffraction efficiency is caused by surface relief modulation (up to 440 nm) during holographic recording. Measured surface profile depth may be the evidence that the main contribution in the value of diffraction efficiency of recorded holographic grating brings the surface relief grating.

Cuvinte-cheie
optical recording materials, azopolymer, holographic recording, surface relief grating, diffraction efficiency,

photo-isomerization