Publikationstyp: Beitrag in wissenschaftlicher Zeitschrift
Art der Begutachtung: Peer review (Publikation)
Titel: Molecular salt crystals with bis(head-to-tail) interionic complementary assembly for efficient organic THz generators
Autor/-in: Kim, Deokjoong
Kim, Won Tae
Seok, Jin-Hong
Yu, In Cheol
Jazbinsek, Mojca
Yoon, Woojin
Yun, Hoseop
Kim, Dongwook
Rotermund, Fabian
Kwon, O-Pil
et. al: No
DOI: 10.1039/D0TC02225J
Erschienen in: Journal of Materials Chemistry C
Band(Heft): 8
Heft: 29
Seiten: 10078
Seiten bis: 10085
Erscheinungsdatum: 7-Jul-2020
Verlag / Hrsg. Institution: Royal Society of Chemistry
ISSN: 2050-7526
2050-7534
Sprache: Englisch
Schlagwörter: THz photonics
Fachgebiet (DDC): 540: Chemie
621.3: Elektro-, Kommunikations-, Steuerungs- und Regelungstechnik
Zusammenfassung: We report new organic nonlinear optical salt crystals comprising bis(head-to-tail) complementary cation–anion assembly that results in extremely efficient THz wave generation. In the new salt crystals, each of the ends of the molecular anion, 4-(trifluoromethyl)benzenesulfonate, possesses bis(hydrogen-bond acceptors), while each of the ends of the nonlinear optical molecular cationic chromophore, 2-(4-(4-(hydroxymethyl)piperidin-1-yl)styryl)-3-methylbenzothiazol-3-ium, possesses bis(hydrogen-bond donors). The resulting assembly fulfills the requirements for efficient broadband THz wave generation, namely, perfectly parallel alignment of the nonlinear optical cationic chromophores for maximizing the optical nonlinearity as well as strong interionic binding interactions for reducing self-absorption of the generated THz waves. The new benzothiazolium crystals provide extremely high optical-to-THz conversion efficiency with a broad THz spectral bandwidth of 8 THz, where the peak-to-peak THz electric field amplitude is 36 times higher than that of the benchmark inorganic 1.0 mm-thick ZnTe crystal when pumped at 1300 nm and also notably higher than those of benchmark organic analogous crystals.
URI: https://digitalcollection.zhaw.ch/handle/11475/21557
Volltext Version: Publizierte Version
Lizenz (gemäss Verlagsvertrag): Lizenz gemäss Verlagsvertrag
Departement: School of Engineering
Organisationseinheit: Institute of Computational Physics (ICP)
Enthalten in den Sammlungen:Publikationen School of Engineering

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