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Real time changes of the molecular orientational state are readily analyzed with polarized optical waveguide (POW) spectroscopy. Assembly or orientation of over 20 different dye molecules in solution have been analyzed during air-drying. The dynamic behavior of dyes including both orientational direction and degree of aggregation has been discussed with the key group structures of dyes. We suggest...
To realize the spectral analysis of molecules on the opaque substrate, we proposed non-contact optical waveguide (NOW) spectroscopy. The cyt.c was adsorbed on the carbon substrate by dipping method. This was fixed above the optical waveguide. The gap between the carbon substrate and the waveguide was controlled by latex beads with a diameter of 120 nm as a spacer. A clear NOW spectrum based on the...
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