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  2. School of Engineering
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dc.contributor.authorLee, Ji‐Ah-
dc.contributor.authorKim, Won Tae-
dc.contributor.authorJazbinsek, Mojca-
dc.contributor.authorKim, Deokjoong-
dc.contributor.authorLee, Seung‐Heon-
dc.contributor.authorYu, In Cheol-
dc.contributor.authorYoon, Woojin-
dc.contributor.authorYun, Hoseop-
dc.contributor.authorRotermund, Fabian-
dc.contributor.authorKwon, O‐Pil-
dc.date.accessioned2021-03-04T10:00:25Z-
dc.date.available2021-03-04T10:00:25Z-
dc.date.issued2020-02-24-
dc.identifier.issn2195-1071de_CH
dc.identifier.urihttps://digitalcollection.zhaw.ch/handle/11475/21907-
dc.description.abstractEfficient broadband organic terahertz (THz) generators using X‐shaped alignment of the nonlinear optical chromophores, as an alternative to the parallel alignment of chromophores in benchmark organic crystals, are reported. All the developed six organic benzothiazolium crystals exhibit an isomorphic X‐shaped alignment of chromophores, resulting in an unprecedentedly large off‐diagonal optical nonlinearity (>100 × 10−30 esu), which presents one of the largest off‐diagonal optical nonlinearity of organic crystals. The benzothiazolium crystals exhibit efficient broadband THz wave generation employing the off‐diagonal optical nonlinearity, in contrast to the present state‐of‐the‐art organic THz generators that mostly utilize diagonal optical nonlinearity. For using off‐diagonal and diagonal optical nonlinearities, the polarization of the optical pump is perpendicular and parallel, respectively, to the polar axis of crystals. In addition to a large THz wave generation efficiency with one order of magnitude higher peak‐to‐peak THz electric field than that generated in a 1.0‐mm‐thick inorganic benchmark ZnTe crystal, the benzothiazolium crystals generate broadband THz spectra with an upper cut‐off frequency of near 8 THz, and the absence of strong absorption dimples in the range of 0.5−4 THz. Therefore, the X‐shaped alignment of chromophores presents an interesting potential alternative for efficient broadband organic THz generators.de_CH
dc.language.isoende_CH
dc.publisherWileyde_CH
dc.relation.ispartofAdvanced Optical Materialsde_CH
dc.rightsLicence according to publishing contractde_CH
dc.subjectTHz photonicsde_CH
dc.subject.ddc621.3: Elektro-, Kommunikations-, Steuerungs- und Regelungstechnikde_CH
dc.titleX‐shaped alignment of chromophores : potential alternative for efficient organic terahertz generatorsde_CH
dc.typeBeitrag in wissenschaftlicher Zeitschriftde_CH
dcterms.typeTextde_CH
zhaw.departementSchool of Engineeringde_CH
zhaw.organisationalunitInstitute of Computational Physics (ICP)de_CH
dc.identifier.doi10.1002/adom.201901921de_CH
zhaw.funding.euNode_CH
zhaw.issue9de_CH
zhaw.originated.zhawYesde_CH
zhaw.pages.start1901921de_CH
zhaw.publication.statuspublishedVersionde_CH
zhaw.volume8de_CH
zhaw.publication.reviewPeer review (Publikation)de_CH
zhaw.funding.snf188194de_CH
zhaw.webfeedPhotonicsde_CH
zhaw.author.additionalNode_CH
zhaw.display.portraitYesde_CH
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Lee, J.-A., Kim, W. T., Jazbinsek, M., Kim, D., Lee, S.-H., Yu, I. C., Yoon, W., Yun, H., Rotermund, F., & Kwon, O.-P. (2020). X‐shaped alignment of chromophores : potential alternative for efficient organic terahertz generators. Advanced Optical Materials, 8(9), 1901921. https://doi.org/10.1002/adom.201901921
Lee, J.-A. et al. (2020) ‘X‐shaped alignment of chromophores : potential alternative for efficient organic terahertz generators’, Advanced Optical Materials, 8(9), p. 1901921. Available at: https://doi.org/10.1002/adom.201901921.
J.-A. Lee et al., “X‐shaped alignment of chromophores : potential alternative for efficient organic terahertz generators,” Advanced Optical Materials, vol. 8, no. 9, p. 1901921, Feb. 2020, doi: 10.1002/adom.201901921.
LEE, Ji‐Ah, Won Tae KIM, Mojca JAZBINSEK, Deokjoong KIM, Seung‐Heon LEE, In Cheol YU, Woojin YOON, Hoseop YUN, Fabian ROTERMUND und O‐Pil KWON, 2020. X‐shaped alignment of chromophores : potential alternative for efficient organic terahertz generators. Advanced Optical Materials. 24 Februar 2020. Bd. 8, Nr. 9, S. 1901921. DOI 10.1002/adom.201901921
Lee, Ji‐Ah, Won Tae Kim, Mojca Jazbinsek, Deokjoong Kim, Seung‐Heon Lee, In Cheol Yu, Woojin Yoon, Hoseop Yun, Fabian Rotermund, and O‐Pil Kwon. 2020. “X‐Shaped Alignment of Chromophores : Potential Alternative for Efficient Organic Terahertz Generators.” Advanced Optical Materials 8 (9): 1901921. https://doi.org/10.1002/adom.201901921.
Lee, Ji-Ah, et al. “X‐Shaped Alignment of Chromophores : Potential Alternative for Efficient Organic Terahertz Generators.” Advanced Optical Materials, vol. 8, no. 9, Feb. 2020, p. 1901921, https://doi.org/10.1002/adom.201901921.


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