29 December 2015 Nanofiber waveguides and photophysics of an organic dye
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Abstract
We present previously unreported properties of the organic molecular dye compound, 2,3,7,8-tetracyano-5,10-dimethyl-5,10-dihydrodipyrazino[2,3-b:2’,3’-e]pyrazine (DMTC-pyrazine) (CAS Reg. No. 150960-11-5), including photophysical properties with particular emphasis on optical waveguiding. We show that DMTC-pyrazine can self-assemble into monoclinic crystals that are thermally stable over 300°C. Through shape-engineering, optimized growth conditions produced high yields of nanofiber (aspect ratio >6) crystals. No photobleaching of this dye was observed in air even after hours of on-resonant illumination. Excitation of photoluminescence within the DMTC-pyrazine nanofibers propagates in tightly confined guided modes (up to 25  μm). The finesse, end-facet reflectance, and group refractive index of nanofiber DMTC-pyrazine Fabry-Pérot cavities are reported.
© 2015 Society of Photo-Optical Instrumentation Engineers (SPIE)
M. Joseph Roberts, William W. Lai, Thomas J. Groshens, Alfred J. Baca, Simin Feng, "Nanofiber waveguides and photophysics of an organic dye," Journal of Nanophotonics 9(1), 093038 (29 December 2015). https://doi.org/10.1117/1.JNP.9.093038 . Submission:
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