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Development of new nonlinear optical polymers based on epoxy- amine oligomers with Bi-chromophore fragments in the side chain. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.07.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Burganov RR, Mochalova EN, Galikhanov MF, Bannov AG, Shibaev AA. Electret materials based on an epoxy oligomer and multi-walled carbon nanotubes (MWNT-1020). MENDELEEV COMMUNICATIONS 2017. [DOI: 10.1016/j.mencom.2017.01.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Kharintsev SS, Fishman AI, Saikin SK, Kazarian SG. Near-field Raman dichroism of azo-polymers exposed to nanoscale dc electrical and optical poling. NANOSCALE 2016; 8:19867-19875. [PMID: 27878200 DOI: 10.1039/c6nr07508h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Azobenzene-functionalized polymer films are functional materials, where the (planar vs. homeotropic) orientation of azo-dyes can be used for storing data. In order to characterize the nanoscale 3D orientation of the pigments in sub-10 nm thick polymer films we use two complementary techniques: polarization-controlled tip-enhanced Raman scattering (TERS) microscopy and contact scanning capacity microscopy. We demonstrate that the homeotropic and planar orientations of the azo-dyes are produced by applying a local dc electrical field and a resonant longitudinal optical near-field, respectively. For a non-destructive probe of the azo-dye orientation we apply a non-resonant optical near-field and compare the intensities of the Raman-active vibrational modes. We show that near-field Raman dichroism, a characteristic similar to the absorption dichroism used in far-field optics, can be a quantitative indicator of the 3D molecular orientation of the azo-dye at the nanoscale. This study directly benefits the further development of photochromic near-field optical memory that can lead to ultrahigh density information storage.
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Affiliation(s)
- Sergey S Kharintsev
- Department of Optics and Nanophotonics, Institute of Physics, Kazan Federal University, Kremlevskaya, 16, Kazan, 420008, Russia. and Institute of Perspective Technologies, Tatarstan Academy of Sciences, Baumana, 20, Kazan, 420111, Russia
| | - Alexandr I Fishman
- Department of Optics and Nanophotonics, Institute of Physics, Kazan Federal University, Kremlevskaya, 16, Kazan, 420008, Russia.
| | - Semion K Saikin
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, MA 02138, USA and Department of Theoretical Physics, Institute of Physics, Kazan Federal University, Kremlevskaya, 16, Kazan, 420008, Russia
| | - Sergei G Kazarian
- Department of Chemical Engineering, Imperial College, London, SW7 2AZ, UK
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Nazmieva GN, Vakhonina TA, Sharipova SM, Ivanova NV, Mukhtarov AS, Smirnov MA, Balakina MY, Sinyashin OG. New epoxy-amine oligomers with chromophore-containing dendritic fragments in the side chain and determination of their nonlinear-optical characteristics. MENDELEEV COMMUNICATIONS 2015. [DOI: 10.1016/j.mencom.2015.03.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Nazmieva G, Vakhonina T, Ivanova N, Mukhtarov A, Smirnov N, Yakimansky A, Balakina M, Sinyashin O. Testing of the ways for synthesis of new nonlinear optical epoxy-based polymers with azochromophores in the side chain. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2014.12.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Vakhonina TA, Ivanova NV, Smirnov NN, Yakimansky AV, Balakina MY, Sinyashin OG. Nonlinear-optical properties of methacrylic (co)polymers with azo chromophores in the side chain. MENDELEEV COMMUNICATIONS 2014. [DOI: 10.1016/j.mencom.2014.04.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Vakhonina T, Balakina M, Nazmieva G, Ivanova N, Kurmaz S, Kochneva I, Bubnova M, Perepelitsina E, Smirnov N, Yakimansky A, Sinyashin O. Synthesis and nonlinear optical properties of branched copolymers with covalently attached azochromophores. Eur Polym J 2014. [DOI: 10.1016/j.eurpolymj.2013.10.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Shevchenko VV, Sidorenko AV, Bliznyuk VN, Tkachenko IM, Shekera OV. Azo-containing polyurethanes with nonlinear-optical properties. POLYMER SCIENCE SERIES A 2013. [DOI: 10.1134/s0965545x12100045] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Nikonorova N, Balakina M, Fominykh O, Pudovkin M, Vakhonina T, Diaz-Calleja R, Yakimansky A. Dielectric spectroscopy and molecular dynamics of epoxy oligomers with covalently bonded nonlinear optical chromophores. Chem Phys Lett 2012. [DOI: 10.1016/j.cplett.2012.09.053] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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