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Article: Gigantic electric-field-induced second harmonic generation from an organic conjugated polymer enhanced by a band-edge effect

TitleGigantic electric-field-induced second harmonic generation from an organic conjugated polymer enhanced by a band-edge effect
Authors
Issue Date2019
Citation
Light: Science and Applications, 2019, v. 8, n. 1, article no. 17 How to Cite?
AbstractElectric-field-induced second harmonic generation (EFISH), a third-order nonlinear process, arises from the interaction between the electric field of an external bias and that of two incident photons. EFISH can be used to dynamically control the nonlinear optical response of materials and is therefore promising for active nonlinear devices. However, it has been challenging to achieve a strong modulation with EFISH in conventional nonlinear materials. Here, we report a large tunability of an EFISH signal from a subwavelength-thick polymer film sandwiched between a transparent electrode and a metallic mirror. By exploiting the band-edge-enhanced third-order nonlinear susceptibility of the organic conjugated polymer, we successfully demonstrate a gigantic EFISH effect with a modulation ratio up to 422% V −1 at a pumping wavelength of 840 nm. The band-edge-enhanced EFISH opens new avenues for modulating the intensity of SHG signals and for controlling nonlinear electro-optic interactions in nanophotonic devices.
Persistent Identifierhttp://hdl.handle.net/10722/295103
ISSN
2023 Impact Factor: 20.6
PubMed Central ID
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorChen, Shumei-
dc.contributor.authorLi, King Fai-
dc.contributor.authorLi, Guixin-
dc.contributor.authorCheah, Kok Wai-
dc.contributor.authorZhang, Shuang-
dc.date.accessioned2021-01-05T04:59:04Z-
dc.date.available2021-01-05T04:59:04Z-
dc.date.issued2019-
dc.identifier.citationLight: Science and Applications, 2019, v. 8, n. 1, article no. 17-
dc.identifier.issn2095-5545-
dc.identifier.urihttp://hdl.handle.net/10722/295103-
dc.description.abstractElectric-field-induced second harmonic generation (EFISH), a third-order nonlinear process, arises from the interaction between the electric field of an external bias and that of two incident photons. EFISH can be used to dynamically control the nonlinear optical response of materials and is therefore promising for active nonlinear devices. However, it has been challenging to achieve a strong modulation with EFISH in conventional nonlinear materials. Here, we report a large tunability of an EFISH signal from a subwavelength-thick polymer film sandwiched between a transparent electrode and a metallic mirror. By exploiting the band-edge-enhanced third-order nonlinear susceptibility of the organic conjugated polymer, we successfully demonstrate a gigantic EFISH effect with a modulation ratio up to 422% V −1 at a pumping wavelength of 840 nm. The band-edge-enhanced EFISH opens new avenues for modulating the intensity of SHG signals and for controlling nonlinear electro-optic interactions in nanophotonic devices.-
dc.languageeng-
dc.relation.ispartofLight: Science and Applications-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.titleGigantic electric-field-induced second harmonic generation from an organic conjugated polymer enhanced by a band-edge effect-
dc.typeArticle-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1038/s41377-019-0128-z-
dc.identifier.pmid30728956-
dc.identifier.pmcidPMC6351641-
dc.identifier.scopuseid_2-s2.0-85060876016-
dc.identifier.volume8-
dc.identifier.issue1-
dc.identifier.spagearticle no. 17-
dc.identifier.epagearticle no. 17-
dc.identifier.eissn2047-7538-
dc.identifier.isiWOS:000458554000004-
dc.identifier.issnl2047-7538-

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