New N-pyrimidinyl stilbazolium crystals for second-order nonlinear optics

Shin, Bong-Rim; Kim, Se-In; Kim, Dongwook; Jazbinsek, Mojca; Yoon, Woojin; Yun, Hoseop; Yu, In Cheol; Rotermund, Fabian; Kwon, O-Pil

doi:10.1016/j.optlastec.2022.108454

Publication type:	Article in scientific journal
Type of review:	Peer review (publication)
Title:	New N-pyrimidinyl stilbazolium crystals for second-order nonlinear optics
Authors:	Shin, Bong-Rim Kim, Se-In Kim, Dongwook Jazbinsek, Mojca Yoon, Woojin Yun, Hoseop Yu, In Cheol Rotermund, Fabian Kwon, O-Pil
et. al:	No
DOI:	10.1016/j.optlastec.2022.108454
Published in:	Optics & Laser Technology
Volume(Issue):	156
Issue:	108454
Issue Date:	2022
Publisher / Ed. Institution:	Elsevier
ISSN:	0030-3992
Language:	English
Subjects:	Nonlinear optics; Chromophore; Organic crystal; Stilbazolium
Subject (DDC):	621.3: Electrical, communications, control engineering
Abstract:	We report a new π-conjugated cationic chromophore based on phenolic N-pyrimidinyl stilbazolium and its corresponding non-centrosymmetric crystals. The new cationic chromophore, HPR (4-(4-hydroxy-3-methoxystyryl)-1-(pyrimidin-2-yl)pyridin-1-ium), consists of a strong electron donor, the 4-hydroxy-3-methoxyphenyl group based on two electron-donating groups, and a strong electron acceptor, the N-pyrimidinyl pyridinium group based on two electron-withdrawing groups. The HPR chromophore possesses large molecular optical nonlinearity with first hyperpolarizability of up to 264 × 10−30 esu, which is significantly larger than that of the benchmark stilbazolium chromophores. In solution, the HPR chromophore showed co-existence of phenol- and phenolate-like forms with two absorption bands (∼460 and ∼610 nm, respectively). In the crystalline state, all HPR-based derivatives with three different counter anions, N2S (naphthalene-2-sulfonate), VBS (4-vinylbenzenesulfonate), and NBS (3-nitrobenzenesulfonate), exhibit a macroscopic second-order nonlinear optical response. HPR-N2S crystals exhibit non-centrosymmetric monoclinic Pn space group symmetry and large off-diagonal effective macroscopic optical nonlinearity (94 × 10−30 esu), which is approximately four times higher than that of the benchmark stilbazolium crystals. Therefore, the newly developed HPR-based crystals are highly promising materials for second-order nonlinear optical applications.
URI:	https://digitalcollection.zhaw.ch/handle/11475/27003
Fulltext version:	Published version
License (according to publishing contract):	Licence according to publishing contract
Departement:	School of Engineering
Organisational Unit:	Institute of Computational Physics (ICP)
Published as part of the ZHAW project:	Molecular Phonon-Mode Engineering for All-Organic Gap-Free THz Photonics
Appears in collections:	Publikationen School of Engineering

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Shin, B.-R., Kim, S.-I., Kim, D., Jazbinsek, M., Yoon, W., Yun, H., Yu, I. C., Rotermund, F., & Kwon, O.-P. (2022). New N-pyrimidinyl stilbazolium crystals for second-order nonlinear optics. Optics & Laser Technology, 156(108454). https://doi.org/10.1016/j.optlastec.2022.108454

Shin, B.-R. et al. (2022) ‘New N-pyrimidinyl stilbazolium crystals for second-order nonlinear optics’, Optics & Laser Technology, 156(108454). Available at: https://doi.org/10.1016/j.optlastec.2022.108454.

B.-R. Shin et al., “New N-pyrimidinyl stilbazolium crystals for second-order nonlinear optics,” Optics & Laser Technology, vol. 156, no. 108454, 2022, doi: 10.1016/j.optlastec.2022.108454.

SHIN, Bong-Rim, Se-In KIM, Dongwook KIM, Mojca JAZBINSEK, Woojin YOON, Hoseop YUN, In Cheol YU, Fabian ROTERMUND und O-Pil KWON, 2022. New N-pyrimidinyl stilbazolium crystals for second-order nonlinear optics. Optics & Laser Technology. 2022. Bd. 156, Nr. 108454. DOI 10.1016/j.optlastec.2022.108454

Shin, Bong-Rim, Se-In Kim, Dongwook Kim, Mojca Jazbinsek, Woojin Yoon, Hoseop Yun, In Cheol Yu, Fabian Rotermund, and O-Pil Kwon. 2022. “New N-Pyrimidinyl Stilbazolium Crystals for Second-Order Nonlinear Optics.” Optics & Laser Technology 156 (108454). https://doi.org/10.1016/j.optlastec.2022.108454.

Shin, Bong-Rim, et al. “New N-Pyrimidinyl Stilbazolium Crystals for Second-Order Nonlinear Optics.” Optics & Laser Technology, vol. 156, no. 108454, 2022, https://doi.org/10.1016/j.optlastec.2022.108454.