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https://doi.org/10.21256/zhaw-21558| Publikationstyp: | Beitrag in wissenschaftlicher Zeitschrift |
| Art der Begutachtung: | Peer review (Publikation) |
| Titel: | Organic broadband THz generators optimized for efficient near‐infrared optical pumping |
| Autor/-in: | Shin, Myeong‐Hoon Kim, Won Tae Kim, Se‐In Kim, Seung‐Jun Yu, In Cheol Kim, Sang‐Wook Jazbinsek, Mojca Yoon, Woojin Yun, Hoseop Rotermund, Fabian Kwon, O‐Pil |
| et. al: | No |
| DOI: | 10.1002/advs.202001738 10.21256/zhaw-21558 |
| Erschienen in: | Advanced Science |
| Band(Heft): | 7 |
| Heft: | 20 |
| Seite(n): | 2001738 |
| Erscheinungsdatum: | 2020 |
| Verlag / Hrsg. Institution: | Wiley |
| ISSN: | 2198-3844 |
| Sprache: | Englisch |
| Schlagwörter: | Nonlinear optics; Organic crystals; Terahertz waves; THz photonics |
| Fachgebiet (DDC): | 540: Chemie 621.3: Elektro-, Kommunikations-, Steuerungs- und Regelungstechnik |
| Zusammenfassung: | New organic THz generators are designed herein by molecular engineering of the refractive index, phonon mode, and spatial asymmetry. These benzothiazolium crystals simultaneously satisfy the crucial requirements for efficient THz wave generation, including having nonlinear optical chromophores with parallel alignment that provide large optical nonlinearity; good phase matching for enhancing the THz generation efficiency in the near-infrared region; strong intermolecular interactions that provide restraining THz self-absorption; high solubility that promotes good crystal growth ability; and a plate-like crystal morphology with excellent optical quality. Consequently, the as-grown benzothiazolium crystals exhibit excellent characteristics for THz wave generation, particularly at near-infrared pump wavelengths around 1100 nm, which is very promising given the availability of femtosecond laser sources at this wavelength, where current conventional THz generators deliver relatively low optical-to-THz conversion efficiencies. Compared to a 1.0-mm-thick ZnTe crystal as an inorganic benchmark, the 0.28-mm-thick benzothiazolium crystal yields a 19 times higher peak-to-peak THz electric field with a broader spectral bandwidth (>6.5 THz) when pumped at 1140 nm. The present work provides a valuable approach toward realizing organic crystals that can be pumped by near-infrared sources for efficient THz wave generation. |
| URI: | https://digitalcollection.zhaw.ch/handle/11475/21558 |
| Volltext Version: | Publizierte Version |
| Lizenz (gemäss Verlagsvertrag): | CC BY 4.0: Namensnennung 4.0 International |
| Departement: | School of Engineering |
| Organisationseinheit: | Institute of Computational Physics (ICP) |
| Enthalten in den Sammlungen: | Publikationen School of Engineering |
Dateien zu dieser Ressource:
| Datei | Beschreibung | Größe | Format | |
|---|---|---|---|---|
| 2020_Shin_etal_Organic-broadband-THz-generators_Advanced-Science.pdf | 1.94 MB | Adobe PDF |  Öffnen/Anzeigen |
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Shin, M.-H., Kim, W. T., Kim, S.-I., Kim, S.-J., Yu, I. C., Kim, S.-W., Jazbinsek, M., Yoon, W., Yun, H., Rotermund, F., & Kwon, O.-P. (2020). Organic broadband THz generators optimized for efficient near‐infrared optical pumping. Advanced Science, 7(20), 2001738. https://doi.org/10.1002/advs.202001738
Shin, M.-H. et al. (2020) ‘Organic broadband THz generators optimized for efficient near‐infrared optical pumping’, Advanced Science, 7(20), p. 2001738. Available at: https://doi.org/10.1002/advs.202001738.
M.-H. Shin et al., “Organic broadband THz generators optimized for efficient near‐infrared optical pumping,” Advanced Science, vol. 7, no. 20, p. 2001738, 2020, doi: 10.1002/advs.202001738.
SHIN, Myeong‐Hoon, Won Tae KIM, Se‐In KIM, Seung‐Jun KIM, In Cheol YU, Sang‐Wook KIM, Mojca JAZBINSEK, Woojin YOON, Hoseop YUN, Fabian ROTERMUND und O‐Pil KWON, 2020. Organic broadband THz generators optimized for efficient near‐infrared optical pumping. Advanced Science. 2020. Bd. 7, Nr. 20, S. 2001738. DOI 10.1002/advs.202001738
Shin, Myeong‐Hoon, Won Tae Kim, Se‐In Kim, Seung‐Jun Kim, In Cheol Yu, Sang‐Wook Kim, Mojca Jazbinsek, et al. 2020. “Organic Broadband THz Generators Optimized for Efficient near‐Infrared Optical Pumping.” Advanced Science 7 (20): 2001738. https://doi.org/10.1002/advs.202001738.
Shin, Myeong-Hoon, et al. “Organic Broadband THz Generators Optimized for Efficient near‐Infrared Optical Pumping.” Advanced Science, vol. 7, no. 20, 2020, p. 2001738, https://doi.org/10.1002/advs.202001738.
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