Smart signal interconnection by the use of a photosensitive polymer. Saito, M., Hamazaki, T., & Sakiyama, K. In 2017 25th European Signal Processing Conference (EUSIPCO), pages 1358-1361, Aug, 2017.
Smart signal interconnection by the use of a photosensitive polymer [pdf]Paper  doi  abstract   bibtex   
Photosensitivity of a dye-dispersed polymer was utilized for creating a self-controlled photonic interconnection. Polydimethylsiloxane that contained photochromic diarylethene changed its color depending on wavelengths of irradiated laser beams. Transmission characteristics of this polymer were examined by using laser pulses of 405 (violet), 450 (blue), or 532 nm (green) wavelength as photonic signals. When violet or green signal pulses (1 kHz or 1 kbps) were launched into this polymer, an optical path was formed in self-organized manner, and consequently, the output signal intensity increased as time passed. By contrast, the intensity of blue pulses decreased gradually, since they erased their optical path by themselves.

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