Fig. 8: Optical waveguide study. | Nature Communications

Fig. 8: Optical waveguide study.

From: Highly efficient color-tunable organic co-crystals unveiling polymorphism, isomerism, delayed fluorescence for optical waveguides and cell-imaging

Fig. 8

a–c Micro PL images of TAHOFN, TAHTFPN_G, and TAHTCNB microcrystals; a focused 405 nm excitation laser source was used to excite micro-crystals at seven different positions. d–f Emission spectra at the end of the microcrystals for TAHOFN, TAHTFPN_G, and TAHTCNB, the bright line is the emission spectra at the illuminated position. g–i Estimation of the optical loss coefficient (α′) from the plot of Itip/Ibody versus the light propagation distance.

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