KFU. Card publication. Near-field Raman dichroism of azo-polymers exposed to nanoscale dc electrical and optical poling

KAZAN
FEDERAL UNIVERSITY

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NEAR-FIELD RAMAN DICHROISM OF AZO-POLYMERS EXPOSED TO NANOSCALE DC ELECTRICAL AND OPTICAL POLING

Form of presentation

Articles in international journals and collections

Year of publication

2016

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Authors, employees of KFU

Saykin Semen Konstantinovich, author

Fishman Aleksandr Izrailovich, author

Other authors

Kazaryan Sergey , author

Bibliographic description in the original language

Kharintsev S.S., Fishman A.I., Saikin S.K., Kazarian S.G. Near-field Raman dichroism of azo-polymers exposed to nanoscale dc elec-trical and optical poling // Nanoscale 8, 19867-19875 (2016).

Annotation

Azobenzene-functionalized polymers have attracted much attention due to their facile ability to be transformed with both electrical and optical fields. A control of the polarization of near-field light allows one to selectively probe different vibrational symmetries and molecular orientation of highly anisotropic molecules. Here, we introduce a novel quantitative indicator – voltage-dependent near-field Raman dichroism – for recognizing the binary (planar or homeotropic) states of polar azo-chromophores with longitudinal and transverse non-resonant optical near-fields. The planar and homeotropic alignment of the polar azos can be induced with the longitudinal resonant near-field and a local dc electric field applied along the z-direction, respectively. Alternatively, the orientation polarization is monitored by measuring a local permittivity of azo-polymer thin films. This study directly benefits the further development of photochromic near-field optical storage that can achieve ultrah

Keywords

optical nanoantenna, near-field, tip-enhanced Raman scattering, dichroism, azobenzene

The name of the journal

Nanoscale

URL

http://pubs.rsc.org/en/content/articlelanding/2016/nr/c6nr07508h/unauth#!divAbstract

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=143710&p_lang=2

Full metadata record

Field DC	Value	Language
dc.contributor.author	Saykin Semen Konstantinovich	ru_RU
dc.contributor.author	Fishman Aleksandr Izrailovich	ru_RU
dc.contributor.author	Kazaryan Sergey	ru_RU
dc.date.accessioned	2016-01-01T00:00:00Z	ru_RU
dc.date.available	2016-01-01T00:00:00Z	ru_RU
dc.date.issued	2016	ru_RU
dc.identifier.citation	Kharintsev S.S., Fishman A.I., Saikin S.K., Kazarian S.G. Near-field Raman dichroism of azo-polymers exposed to nanoscale dc elec-trical and optical poling // Nanoscale 8, 19867-19875 (2016).	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=143710&p_lang=2	ru_RU
dc.description.abstract	Nanoscale	ru_RU
dc.description.abstract	Azobenzene-functionalized polymers have attracted much attention due to their facile ability to be transformed with both electrical and optical fields. A control of the polarization of near-field light allows one to selectively probe different vibrational symmetries and molecular orientation of highly anisotropic molecules. Here, we introduce a novel quantitative indicator – voltage-dependent near-field Raman dichroism – for recognizing the binary (planar or homeotropic) states of polar azo-chromophores with longitudinal and transverse non-resonant optical near-fields. The planar and homeotropic alignment of the polar azos can be induced with the longitudinal resonant near-field and a local dc electric field applied along the z-direction, respectively. Alternatively, the orientation polarization is monitored by measuring a local permittivity of azo-polymer thin films. This study directly benefits the further development of photochromic near-field optical storage that can achieve ultrah	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	optical nanoantenna	ru_RU
dc.subject	near-field	ru_RU
dc.subject	tip-enhanced Raman scattering	ru_RU
dc.subject	dichroism	ru_RU
dc.subject	azobenzene	ru_RU
dc.title	Near-field Raman dichroism of azo-polymers exposed to nanoscale dc electrical and optical poling	ru_RU
dc.type	Articles in international journals and collections	ru_RU