Optical transverse excitation in quaterthiophene crystals by ultraviolet-visible internal and attenuated total reflection.
作者： L. Raimondo , M. Laicini , S. Tavazzi , A. Borghesi , P. Spearman
DOI: 10.1063/1.1849771
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摘要: We report internal and attenuated total reflection of light at the interface between glass a quaterthiophene crystal in spectral region electronic transitions. The bands corresponding to absorption a(u) b(u) Frenkel exciton states are detected for different polarization incident light. In particular, wave-normal vector being almost perpendicular transition dipole moment allows its transverse component be accessed, whose excitation conventional external or transmission spectroscopies is forbidden.
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