Publication type: | Article in scientific journal |
Type of review: | Peer review (publication) |
Title: | Phonon modes of organic electro-optic molecular crystals for terahertz photonics |
Authors: | Kim, Jongtaek Kwon, O-Pil Brunner, Fabian D. J. Jazbinsek, Mojca Lee, Seung-Heon Günter, Peter |
DOI: | 10.1021/acs.jpcc.5b02445 |
Published in: | The Journal of Physical Chemistry C |
Volume(Issue): | 119 |
Issue: | 18 |
Page(s): | 10031 |
Pages to: | 10039 |
Issue Date: | 2015 |
Publisher / Ed. Institution: | American Chemical Society |
ISSN: | 1932-7447 1932-7455 |
Language: | English |
Subject (DDC): | 540: Chemistry 621.3: Electrical, communications, control engineering |
Abstract: | We investigate theoretically and experimentally the phonon modes of organic electro-optic crystals for THz-wave photonics. THz phonon modes significantly influence the characteristics of THz-wave generation and detection through the THz absorption and refractive-index dispersion. For a model as THz generation material, electro-optic PNP (2-(N-prolinol)-5-nitropyridine) molecular crystal containing a relatively small numbers of atoms in the unit cell is chosen for phonon-mode calculation. THz phonon modes with their frequencies and intensities are calculated by periodic density functional theory, and the resulting spectrum exhibits a good agreement with the experimental absorption spectrum measured by THz time-domain spectroscopy. THz-wave generation experiment is performed with PNP as THz generator and the organic electro-optic OH1 (2-(3-(4-hydroxystyryl)-5,5-dimethylcyclohex-2-enylidene)malononitrile) crystal as THz detector. Considering the phase matching condition and THz absorption, which are both influenced by the THz phonon modes of THz generation and detection materials, the calculated THz generation spectrum also matches well with the experimental THz spectrum obtained by optical rectification at the pump wavelength of 1300 nm. Therefore, the phonon mode identification is very important for optimizing and designing new THz source and detection materials as well as for THz spectroscopy. |
URI: | https://digitalcollection.zhaw.ch/handle/11475/10791 |
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) |
Appears in collections: | Publikationen School of Engineering |
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Kim, J., Kwon, O.-P., Brunner, F. D. J., Jazbinsek, M., Lee, S.-H., & Günter, P. (2015). Phonon modes of organic electro-optic molecular crystals for terahertz photonics. The Journal of Physical Chemistry C, 119(18), 10031–10039. https://doi.org/10.1021/acs.jpcc.5b02445
Kim, J. et al. (2015) ‘Phonon modes of organic electro-optic molecular crystals for terahertz photonics’, The Journal of Physical Chemistry C, 119(18), pp. 10031–10039. Available at: https://doi.org/10.1021/acs.jpcc.5b02445.
J. Kim, O.-P. Kwon, F. D. J. Brunner, M. Jazbinsek, S.-H. Lee, and P. Günter, “Phonon modes of organic electro-optic molecular crystals for terahertz photonics,” The Journal of Physical Chemistry C, vol. 119, no. 18, pp. 10031–10039, 2015, doi: 10.1021/acs.jpcc.5b02445.
KIM, Jongtaek, O-Pil KWON, Fabian D. J. BRUNNER, Mojca JAZBINSEK, Seung-Heon LEE und Peter GÜNTER, 2015. Phonon modes of organic electro-optic molecular crystals for terahertz photonics. The Journal of Physical Chemistry C. 2015. Bd. 119, Nr. 18, S. 10031–10039. DOI 10.1021/acs.jpcc.5b02445
Kim, Jongtaek, O-Pil Kwon, Fabian D. J. Brunner, Mojca Jazbinsek, Seung-Heon Lee, and Peter Günter. 2015. “Phonon Modes of Organic Electro-Optic Molecular Crystals for Terahertz Photonics.” The Journal of Physical Chemistry C 119 (18): 10031–39. https://doi.org/10.1021/acs.jpcc.5b02445.
Kim, Jongtaek, et al. “Phonon Modes of Organic Electro-Optic Molecular Crystals for Terahertz Photonics.” The Journal of Physical Chemistry C, vol. 119, no. 18, 2015, pp. 10031–39, https://doi.org/10.1021/acs.jpcc.5b02445.
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