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Dual-mode waveguiding of Raman and luminescence signals in a crystalline organic microplate

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Title
Dual-mode waveguiding of Raman and luminescence signals in a crystalline organic microplate
Author(s)
Jo, Seong Gi; Park, Dong Hyuk; Kim, Bong-Gi; Seo, Sungbaek; Lee, Suk Joong; Jeongyong Kim; Kim, Jinsang; Joo, Jinsoo
Publication Date
2014-08
Journal
JOURNAL OF MATERIALS CHEMISTRY C, v.2, no.30, pp.6077 - 6083
Publisher
ROYAL SOC CHEMISTRYROYAL SOC CHEMISTRY
Abstract
We demonstrate dual-mode waveguiding of Raman and luminescence signals using p-conjugated organic 1,4-bis(3,5-bis(trifluoromethyl) cyanostyryl)-2,5-dibromobenzene (CN-TSDB) microplates with singlecrystal structure. The output Raman and photoluminescence (PL) spectra through the CN-TSDB microplates were recorded as a function of propagation distance using a high-resolution laser confocal microscope (LCM). Under 633 nm Raman excitation, which is outside the optical absorption of the microplates, the characteristic Raman modes of C–Br, –CF3, and –C]C– aromatic stretching were clearly observed at the output points. The decay characteristics of the LCM Raman intensities were comparable to those of LCM PL intensities. The intermolecular p–p interaction of CN-TSDB has been enhanced by the attractive interaction between the CN group and Br atoms, which induces efficient polariton propagation and plays an important role in dual-mode waveguiding.
URI
https://pr.ibs.re.kr/handle/8788114/951
ISSN
2050-7526
Appears in Collections:
Center for Integrated Nanostructure Physics(나노구조물리 연구단) > Journal Papers (저널논문)
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