New material based on polyurethane doped with azobenzene dyes in recording media for dynamic polarization holography
On the basis of a new polyurethane with azobenzene dopants, recording media for polarization holography have been created, and their information properties have been studied when recording holograms of a plane wavefront. It has been found that the recording and relaxation times of holograms are shor...
Saved in:
| Published in: | Semiconductor Physics Quantum Electronics & Optoelectronics |
|---|---|
| Date: | 2020 |
| Main Authors: | , , , , , , , , , |
| Format: | Article |
| Language: | English |
| Published: |
Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України
2020
|
| Subjects: | |
| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/215657 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | New material based on polyurethane doped with azobenzene dyes in recording media for dynamic polarization holography / N.A. Davidenko, I.I. Davidenko, M.Yu. Sokolov, A.N. Gonchar, E.V. Mokrinskaya, S.L. Studzinsky, V.A. Pavlov, V.V. Tarasenko, L.S. Tonkopieva, N.G. Chuprina // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2020. — Т. 23, № 1. — С. 81-84. — Бібліогр.: 22 назв. — англ. |
Institution
Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1860753263102525440 |
|---|---|
| author | Davidenko, N.A. Davidenko, I.I. Sokolov, M.Yu. Gonchar, A.N. Mokrinskaya, E.V. Studzinsky, S.L. Pavlov, V.A. Tarasenko, V.V. Tonkopieva, L.S. Chuprina, N.G. |
| author_facet | Davidenko, N.A. Davidenko, I.I. Sokolov, M.Yu. Gonchar, A.N. Mokrinskaya, E.V. Studzinsky, S.L. Pavlov, V.A. Tarasenko, V.V. Tonkopieva, L.S. Chuprina, N.G. |
| citation_txt | New material based on polyurethane doped with azobenzene dyes in recording media for dynamic polarization holography / N.A. Davidenko, I.I. Davidenko, M.Yu. Sokolov, A.N. Gonchar, E.V. Mokrinskaya, S.L. Studzinsky, V.A. Pavlov, V.V. Tarasenko, L.S. Tonkopieva, N.G. Chuprina // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2020. — Т. 23, № 1. — С. 81-84. — Бібліогр.: 22 назв. — англ. |
| collection | DSpace DC |
| container_title | Semiconductor Physics Quantum Electronics & Optoelectronics |
| description | On the basis of a new polyurethane with azobenzene dopants, recording media for polarization holography have been created, and their information properties have been studied when recording holograms of a plane wavefront. It has been found that the recording and relaxation times of holograms are short, and it is defined by the processes of trans-cis-isomerization of azobenzene groups without the formation of the surface relief in the polymer film. The obtained results are of practical interest in the choice of photosensitive materials for holographic recording media for dynamic holography.
|
| first_indexed | 2026-03-25T02:00:51Z |
| format | Article |
| fulltext |
ISSN 1560-8034, 1605-6582 (On-line), SPQEO, 2020. V. 23, N 1. P. 81-84.
© 2020, V. Lashkaryov Institute of Semiconductor Physics, National Academy of Sciences of Ukraine
81
Optoelectronics and optoelectronic devices
New material based on polyurethane doped with azobenzene dyes
in recording media for dynamic polarization holography
N.A. Davidenko
1
, I.I. Davidenko
1*
, M.Yu. Sokolov
2
, A.N. Gonchar
2
, E.V. Mokrinskaya
1
, S.L. Studzinsky
1
,
V.A. Pavlov
1
,V.V. Tarasenko
1
, L.S. Tonkopieva
1
, N.G. Chuprina
1
1
Taras Shevchenko Kyiv National University,
64/13, Volodymyrs’ka str., 01601 Kyiv, Ukraine
2
Institute of Macromolecular Chemistry, NAS of Ukraine,
48, Kharkivs’ke shose, 02160 Kyiv, Ukraine
*Corresponding author e-mail: IrynaDavydenko@gmail.com
Abstract. On the base of a new polyurethane with azobenzene dopants, recording media for
polarization holography have been created, and their information properties have been
studied when recording holograms of a plane wavefront. It has been found that the
recording and relaxation times of holograms are short, and it is defined by the processes of
trans-cis-isomerization of azobenzene groups without formation of the surface relief in the
polymer film. The obtained results are of practical interest in the choice of photosensitive
materials for holographic recording media for dynamic holography.
Keywords: azobenzene, holography, recording medium, polymeric composites.
https://doi.org/10.15407/spqeo23.01.81
PACS 42.40.Ht, 42.40.-i, 42.70.Ln
Manuscript received 16.09.19; revised version received 11.12.19; accepted for publication
18.03.19; published online 23.03.19.
1. Introduction
To create recording media (RM) for polarization
holography, films of polymer composites (FPCs) are
used where azobenzene derivatives or related compounds
are used as chromophores. The principle of holographic
recording in these media with azobenzene chromophores
is based on the fact that photoinduced optical anisotropy
(PIA) appears upon illumination with linearly polarized
light due to trans-cis-isomerization of azobenzene
groups. Photoisomerization of azobenzene chromophores
can cause conformational changes at the molecular level
and can form stable surface reliefs in amorphous films
[1–13]. These RM allow obtaining high values of the
diffraction efficiency of holograms for practical
application, for example, in holographic interferometry
[14–16]. In this case, the recorded holograms should be
stable for a long time after their registration. Another
application of polarization holography is dynamic
polarization holography [17, 18] in which RM should
respond on the recorded rays only during the exposure
and “forget” about the previous recording cycle. In this
case, the recording and relaxation times of the hologram
should be as short as possible. In these RM,
polyurethanes with azobenzene fragments in the side
chain can be used, as it was shown in [19] for example.
However, the literature does not sufficiently reflect the
question of optimizing the choice of polyurethane and
dopants from azobenzene dyes for creation of RM. This
work is aimed at a comparative study of the kinetics of
recording and relaxation of holograms of a plane
wavefront in RM with FPC based on a new polyurethane
and known polymer doped with azobenzene dyes as
chromophores.
2. Experimental
Polyurethane (PU) based on 1,4-diphenylmethane
diisocyanate, polyoxytetramethylene glycol-1000 and
1,4-butanediol, obtained by polycondensation of 1,4-
diphenylmethane diisocyanate with polyoxytetra-
methylene glycol-1000 and subsequent elongation of the
resulting prepolymer chain, were synthesized.
Polymethyl methacrylate (PMMA) obtained using the
method of radical polymerization was used for
comparison. Azobenzene dyes 4-methyl-4'-hydroxyazo-
benzene (Azo1) and 2-bromo-4-nitro-4'-hydroxyazo-
benzene (Azo2) with various donor-acceptor substitutes
were used as azobenzene chromophores. A series of azo-
benzene dyes is chosen being based on the fact that the
transition from Azo1 to Azo2 increases the dipole mo-
ment of the azobenzene chromophore, which can affect
SPQEO, 2020. V. 23, N 1. P. 81-84.
Davidenko N.A., Davidenko I.I., Sokolov M.Yu. et al. New material based on polyurethane doped with azobenzene…
82
Fig. 1.
Fig. 2.
the information properties of RM. The structural
formulas of the used compounds are as follows (Fig. 1).
The softening temperature of FPC based on PU and
PMMA was measured by the well-known method [20],
and it higher than 110 °C. Therefore, it could be expected
that the rheological properties of the studied FPC in RM
are close between themselves.
RM samples with a free surface (glass substrate –
FPC) and samples of the sandwich structure (glass
substrate – ITO – FPC – Ag) where ITO is the
electrically conductive layer SnO2:In2O3 were prepared
for research. FPC had the following composition: PU +
10 mas.% Azo1, PU + 10 mas.% Azo2, PMMA +
10 mas.% Azo1, PMMA + 10 mas.% Azo2. FPC was
prepared by watering solutions of the initial components
in DMFA (for samples based on PU) and 1,2-dichloro-
ethane (for samples based on PMMA) on glass
substrates, drying for 24 hours in a heating chamber at
8 °C. The thickness of FPC was 2-3 µm, and it was
measured using an interference microscope. Samples of
RM with a free surface of FPC were used to measure
optical density spectra (D) and to record holograms of a
plane wavefront. For holographic recording, a solid-state
laser with diode pumping and frequency doubling with
λ = 532 nm was used with a ratio of the light intensity in
the object (I1) and reference (I2) beams 1:1, the spatial
frequency was 300 mm
–1
. The light intensity I1 + I2
before RM was 5·10
3
W/m
2
. Holograms were recorded
for parallel (е1||е2) and perpendicular (е1⊥е2) orientation
of the electric vectors of the incident object (е1) and
reference (е2) light waves. The diffraction efficiency (η)
of the hologram was determined according to the
standard technique [21] as the ratio of the light intensity
in the –1st diffraction order to the intensity of the
reference beam I2 (also the restoring beam in the reading
process) for parallel (е1||е2) and perpendicular (e1⊥e2)
orientation of the electric vectors of the recording light
waves (respectively, as η|| and η⊥). The dependences η||(t)
and η⊥(t) on time (t) were measured after the start and
end of the hologram exposure. The maximal diffraction
efficiency η||max and η⊥max as well as the recording (t1) and
relaxation (t2) times of holograms were measured. The
values of t1 and t2 were estimated, respectively, by using
the value of η||max /2 after the start of hologram
registration and η⊥max /2 after the end of it. Each new
measurement was carried out on a new area of RM to
eliminate the influence of the previous experiment
(memory of the hologram recording). In the samples of
sandwich structure, the dielectric characteristics of FPC
were measured: the values of the tangent of dielectric
loss angle (tgδ) and electric capacitance (C) depending
on the frequency (f) of a sinusoidal alternating electric
voltage with the amplitude 5 V. The measurement results
were averaged over 3 samples of identical RM. All
measurements were carried out at room temperature close
to 20 °C.
3. Results and discussion
Fig. 2 shows the normalized optical density spectra of
FPCs with Azo1 and Azo2. Within the visible spectral
range, the absorption of these FPCs is determined by the
longwave absorption edge of the azobenzene
chromophores, and, therefore, the FPC spectra based on
PU and PMMA almost coincide. The bathochromic shift
in FPC with Azo2, as compared to Azo1, is caused by the
presence of electron-acceptor substitutes in Azo2
increasing the dipole moment of the Azo2 azobenzene
dye molecule as compared to Azo1.
In RM with FPC, holograms of a plane wavefront
are recorded for both orientations of electric vectors
e1||e2 and e1⊥e2. The main results of measuring η||max and
η⊥max as well as the kinetics of recording and relaxation
of holograms are presented in Table and Fig. 2.
From these results, it is clear that in RM with FPC
based on PMMA, the relation η⊥max > η||max found before
for RM based on other azobenzene-containing polymers
[3, 5, 12, 13] is fulfilled. A peculiarity of the
dependences η||(t) and η⊥(t) in the studied RM is the
presence of at least two kinetic sections: fast and slow.
After the start of the hologram exposure, η||(t) and η⊥(t)
rapidly increase, and then this growth slows down.
The same regularity is observed after turning off the
hologram recording. However, in FPC based on the new
PU η⊥max ≤ η||max and all the recording and relaxation
SPQEO, 2020. V. 23, N 1. P. 81-84.
Davidenko N.A., Davidenko I.I., Sokolov M.Yu. et al. New material based on polyurethane doped with azobenzene…
83
Table. Measurement results for η||max and η⊥max in RM with
FPC immediately after their exposure for 2 min.
FPC η||max
t1, s
t2, s
η⊥max
t1, s
t2, s
PU + 10 mas.% Azo1 3·10
–4
2
1
5·10
–5
< 0.1
< 0.1
PU + 10 mas.% Azo2
7·10
–5
< 0.1
< 0.1
6·10
–5
< 0.1
< 0.1
PMMA + 10 mas.%
Azo1
2·10
–4
10
15
2.5·10
–4
10
15
PMMA + 10 mas.%
Azo2
3.5·10
–5
15
20
7.8·10
–5
15
20
Fig. 3.
Fig. 4.
processes of holograms occur much faster as compared to
FPC based on PMMA (Table, Fig. 3), and these two
sections in η||(t) and η⊥(t) dependences are not observed.
In this case, the fastest change of the diffraction
efficiency of holograms is observed in RM with FPC and
Azo2. Thus, an increase of the dipole moment of
azobenzene chromophore molecules in both FPCs based
on PMMA and on PU contributes to an increase of
diffraction efficiency. In RM based on PU, an increase of
the dipole moment of azobenzene chromophore
molecules is also accompanied by a decrease of t1 and t2.
The latter means that formation and relaxation of FIA in
FPC based on PU occurs more quickly than in FPC based
on PMMA. To clarify the possible reasons for this
difference in the properties of FPCs based on PU and
PMMA, we carried out additional investigations of the
dielectric characteristics inherent to these FPCs. Fig. 4
presents the main results of these studies – the plots of
the dependences of tgδ and C on f. From these
experiments, the values of dielectric function ε of FPC
were calculated, which for PMMA and PU are equal to
3.3 and 6.7, respectively.
It is known [4-11] that the main mechanism for
recording polarization holograms with a long relaxation
time (storage) is trans-cis-isomerization of azobenzene
fragments under action of linearly polarized light from
the absorption range of isomers of the azobenzene
chromophore. At the same time, rearrangement of a
polymeric matrix can occur. This rearrangement of the
polymeric matrix is responsible for the long-term storage
of holographic recording. When e1||e2 and e1⊥e2, the
azobenzene groups involved in photoisomerization are
oriented in the respective directions and additional
deforming forces appear acting on the main polymer
chain and resulting in formation of a geometric relief of
the FPC surface in RM. Since liquidation of the surface
relief of a film occurs more slowly than relaxation of a
latent holographic image in polarization-sensitive RM,
the presence of such a relief generally increases the
relaxation time of η. Similar structures on the surface of
FPC are formed during recording the relief amplitude
holograms by photothermoplastic method on photo-
conductive polymer films [22]. Homogeneity of these
structures provides high informational characteristics of
RM and long-term storage of holographic recording.
However, after holographic recording in the investigated
samples of RM with FPC based on PU and PMMA, we
were not able to register a change in the topography of
the FPC surface. We tried to do this using a previously
developed technique [12] employed an interference
microscope. Therefore, we can assume that when
recording holograms in the studied RM, a stable surface
relief of FPC is not formed.
4. Conclusions
The differences in the recording and relaxation velocity
of polarization holograms in FPC based on new PU as
compared to the known polymer are not related to the
rheological properties of these polymers, since the
geometrical relief of the surface of these FPCs is not
conserved after recording the holograms. As the
dielectric function ε of PU is more than 2 times higher
than ε of PMMA (Fig. 4) the differences in information
properties of RM based on these polymers are obviously
related to their dielectric properties. To clarify the effect
SPQEO, 2020. V. 23, N 1. P. 81-84.
Davidenko N.A., Davidenko I.I., Sokolov M.Yu. et al. New material based on polyurethane doped with azobenzene…
84
of dielectric properties of the polymer matrix on the
information properties of RM, additional studies are
needed, which will be the aim of our next works. The
results of experimental investigations with a new
polyurethane as the basis of FPC for RM allow us to
conclude that this PU is of practical interest in the
development and creation of new recording media for
dynamic polarization holography.
References
1. Bian S., Williams J.M., Kim D.Yu., Li L.,
Balasubramanian S., Kumar J., Tripathy S.
Photoinduced surface deformations on azobenzene
polymer films. J. Appl. Phys. 1999. 86. P. 4498–
4502. https://doi.org/10.1063/1.371393.
2. Barachevsky V.A. Current status of develoment of
light-sensitive media for holography (a review).
Optics and Spectroscopy. 2018. 124. P. 373–407.
https://doi.org/10.1134/S0030400X18030062.
3. Davidenko N.A., Davidenko I.I., Kravchenko V.V.,
Marinin A.I., Mokrinskaya E.V., Pavlov V.A.,
Tarasenko V.V., Chuprina N.G. Recording
polarization holograms in films of 4-((2-bromo-4-
nitrophenyl)diazenyl)phenyl methacrylate copoly-
mers. Optics and Spectroscopy. 2019. 126. P. 135–
139. https://doi.org/10.1134/S0030400X19020103.
4. Priimagi A., Shevchenko A.J. Azopolymer-based
micro- and nanopatterning for photonic
applications. Polymer Sci. Part B: Polymer Phys.
2014. 52. P. 163–182.
https://doi.org/10.1002/polb.23390.
5. Davidenko N.A., Davidenko I.I., Pavlov V.A.,
Chuprina N.G., Tarasenko V.V., Studzinsky S.L.
Adjustment of diffraction efficiency of polarization
holograms in azobenzene polymer films using
electric fields. J. Appl. Phys. 2017. 122. P. 013101-
1–6. https://doi.org/10.1063/1.4990995.
6. Natansohn A., Rochon P. Photoinduced motion in
azo-containing polymers. Chem. Rev. 2002. 102.
P. 4139–4175. https://doi.org/10.1021/cr970155y.
7. Simonov A.N., Uraev D.V., Kostromin S.G.,
Shibaev V.P., Stakhanov A.I. Polarization-
controlled optical recording in azocontaining
amorphous polymer films. Laser Physics. 2002. 12.
P. 1294–1302.
8. Emoto A., Uchida E., Fukuda T. Optical and
physical applications of photocotrollable materials:
azobenzene-containing and liquid crystalline
polymers. Polymers. 2012. 4. P. 150–186.
https://doi.org/10.3390/polym4010150.
9. Garrot D., Lassailly Y., Lahlil K., Boilot J.P.,
Peretti J. Real-time near-field imaging of
photoinduced material motion in thin solid films
containing azobenzene derivatives. Appl. Phys. Lett.
2009. 94. P. 033303-1–3.
https://doi.org/10.1063/1.3073742.
10. Zhou J., Yang J., Ke Y., Shen J., Zhang Q., Wang
K. Fabrication of polarization grating and surface
relief grating in crosslinked and non-crosslinking
azopolymer by polarization holography method.
Optical Materials. 2008. 30. P. 1787–1895.
https://doi.org/10.1016/j.optmat.2007.08.011.
11. Häckel M., Kador L., Kropp D., Schmidt H.-W.
Polymer blends in azobenzene-containing block
copolymers in stable rewritable holographic media.
Adv. Mater. 2007. 19. P. 227–231.
https://doi.org/10.1002/adma.200601458.
12. Davidenko N.A., Davidenko I.I., Pavlov V.A.,
Chuprina N.G., Kravchenko V.V., Tarasenko V.V.,
Studzinsky S.L., Mokrinskaya E.V., Tonkopieva
L.S. Recording media for polarization holography
with diffraction efficiency adjusted using electric
field. Optik – International Journal for Light and
Electron Optics. 2018. 158. P. 1308–1312.
https://doi.org/10.1016/j.ijleo.2018.01.018.
13. Davidenko N.A., Davidenko I.I., Pavlov V.A.,
Chuprina N.G., Mokrinskaya E.V., Tarasenko V.V.,
Tonkopieva L.S., Kravchenko V.V. Recording
medium based on the azobenzene copolymer with
free surface and in sandwich-structure for
polarization holography. Optical Materials. 2018.
76. P. 169–173.
https://doi.org/10.1016/j.optmat.2017.12.027.
14. Nikolova L., Ramanujam P.S. Polarization
Holography. Cambridge, UK: Cambridge
University Press, 2009.
15. Yoshimura T. Thin-Film Organic Photonics:
Molecular Layer Deposition and Applications. Boca
Raton – London – New York: CRC Press, 2011.
16. Naydenova I. (Ed.). Holograms – Recording
Materials and Applications. Intech: Rijeka, Croatia,
2011.
17. Romanov O.G., Gorbach D.V., Tolstik A.L.
Transformations of optical vortices by polarization
dynamic holograms. Optics and Spectroscopy.
2013. 115. P. 335–339.
18. Kabanov V.V., Rubanov A.S., Tolstik A.L.,
Chaley A.V. Optical multistability of four-wave
mixing in a resonant medium. Opt. Commun. 1989.
71. P. 219–223.
https://doi.org/10.1016/0030-4018(89)90431-8.
19. Goldenberg L.M., Kulikovsky L., Kulikovska O.,
Stumpe J. New materials with detachable azo-
benzene: effective, colourless and extremely stable
surface relief gratings. J. Mater. Chem. 2009. 19.
P. 8068–8071. https://doi.org/10.1039/B918130J.
20. Schwetlick K. Organicum. WILEY-VCH Verlag
GmbH, 2001.
21. Collier R.J., Burckhart C.B., Lin L.H. Optical
Holography. NY. and London: Academic Press,
1973.
22. Davidenko N.A., Davidenko I.I., Pavlov V.A.,
Chuprina N.G., Kravchenko V.V., Kuranda N.N.,
Mokrinskaya E.V., Studzinsly S.L. Photo-
thermoplastic recording media and its application
in the holographic method of determination of
refracttive index of liquid objects. Appl. Opt. 2018.
57. P. 1832–1837.
https://doi.org/10.1364/AO.57.001832.
|
| id | nasplib_isofts_kiev_ua-123456789-215657 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 1560-8034 |
| language | English |
| last_indexed | 2026-03-26T19:16:36Z |
| publishDate | 2020 |
| publisher | Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України |
| record_format | dspace |
| spelling | Davidenko, N.A. Davidenko, I.I. Sokolov, M.Yu. Gonchar, A.N. Mokrinskaya, E.V. Studzinsky, S.L. Pavlov, V.A. Tarasenko, V.V. Tonkopieva, L.S. Chuprina, N.G. 2026-03-24T12:17:54Z 2020 New material based on polyurethane doped with azobenzene dyes in recording media for dynamic polarization holography / N.A. Davidenko, I.I. Davidenko, M.Yu. Sokolov, A.N. Gonchar, E.V. Mokrinskaya, S.L. Studzinsky, V.A. Pavlov, V.V. Tarasenko, L.S. Tonkopieva, N.G. Chuprina // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2020. — Т. 23, № 1. — С. 81-84. — Бібліогр.: 22 назв. — англ. 1560-8034 PACS: 42.40.Ht, 42.40.-i, 42.70.Ln https://nasplib.isofts.kiev.ua/handle/123456789/215657 https://doi.org/10.15407/spqeo23.01.081 On the basis of a new polyurethane with azobenzene dopants, recording media for polarization holography have been created, and their information properties have been studied when recording holograms of a plane wavefront. It has been found that the recording and relaxation times of holograms are short, and it is defined by the processes of trans-cis-isomerization of azobenzene groups without the formation of the surface relief in the polymer film. The obtained results are of practical interest in the choice of photosensitive materials for holographic recording media for dynamic holography. en Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України Semiconductor Physics Quantum Electronics & Optoelectronics Optoelectronics and optoelectronic devices New material based on polyurethane doped with azobenzene dyes in recording media for dynamic polarization holography Article published earlier |
| spellingShingle | New material based on polyurethane doped with azobenzene dyes in recording media for dynamic polarization holography Davidenko, N.A. Davidenko, I.I. Sokolov, M.Yu. Gonchar, A.N. Mokrinskaya, E.V. Studzinsky, S.L. Pavlov, V.A. Tarasenko, V.V. Tonkopieva, L.S. Chuprina, N.G. Optoelectronics and optoelectronic devices |
| title | New material based on polyurethane doped with azobenzene dyes in recording media for dynamic polarization holography |
| title_full | New material based on polyurethane doped with azobenzene dyes in recording media for dynamic polarization holography |
| title_fullStr | New material based on polyurethane doped with azobenzene dyes in recording media for dynamic polarization holography |
| title_full_unstemmed | New material based on polyurethane doped with azobenzene dyes in recording media for dynamic polarization holography |
| title_short | New material based on polyurethane doped with azobenzene dyes in recording media for dynamic polarization holography |
| title_sort | new material based on polyurethane doped with azobenzene dyes in recording media for dynamic polarization holography |
| topic | Optoelectronics and optoelectronic devices |
| topic_facet | Optoelectronics and optoelectronic devices |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/215657 |
| work_keys_str_mv | AT davidenkona newmaterialbasedonpolyurethanedopedwithazobenzenedyesinrecordingmediafordynamicpolarizationholography AT davidenkoii newmaterialbasedonpolyurethanedopedwithazobenzenedyesinrecordingmediafordynamicpolarizationholography AT sokolovmyu newmaterialbasedonpolyurethanedopedwithazobenzenedyesinrecordingmediafordynamicpolarizationholography AT goncharan newmaterialbasedonpolyurethanedopedwithazobenzenedyesinrecordingmediafordynamicpolarizationholography AT mokrinskayaev newmaterialbasedonpolyurethanedopedwithazobenzenedyesinrecordingmediafordynamicpolarizationholography AT studzinskysl newmaterialbasedonpolyurethanedopedwithazobenzenedyesinrecordingmediafordynamicpolarizationholography AT pavlovva newmaterialbasedonpolyurethanedopedwithazobenzenedyesinrecordingmediafordynamicpolarizationholography AT tarasenkovv newmaterialbasedonpolyurethanedopedwithazobenzenedyesinrecordingmediafordynamicpolarizationholography AT tonkopievals newmaterialbasedonpolyurethanedopedwithazobenzenedyesinrecordingmediafordynamicpolarizationholography AT chuprinang newmaterialbasedonpolyurethanedopedwithazobenzenedyesinrecordingmediafordynamicpolarizationholography |