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Scanning electron microscopy photographs of (a) alumina and (b) PC films.
Transmission spectra of PC films containing the toluene solution of spirobenzopyran (hole size: 50, 100, ).
(a) Absorption spectra of the 2-propanol and toluene solutions in free space. (b) Absorption spectra of the films containing the toluene solution.
Temporal changes of the absorption constants during a thermal relaxation process. The horizontal axis shows time after stop of UV irradiation. Samples are (a) the toluene solution in alumina and the 2-propanol solution in free space and (b) the toluene solutions in the polymer films or free space.
Intensity of the diffracted He–Ne laser beam. Interference fringes of period were created with green laser of 0.3 or . The gray line shows the data taken by stopping laser irradiation from .
Absorption wavelengths and reaction time constants.
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