Abstract
In nanostructures with a high excitonic coherence, the interplay between the spatial structure of the excitonic wavefunction and that of the radiation field plays an essential role, causing drastic size effects in the optical response, such as size-resonant enhancement of the radiative decay rate and the nonlinear response and the interchange of quantized levels. This article discusses such peculiar optical effects based on the theoretical treatment beyond the long-wavelength approximation and demonstrates the possibility of designing novel photofunctions with the explicit use of the spatial structures of the radiation field.
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Ishihara, H. Drastic size effects in light-matter interactions due to long-range excitonic coherence. Laser Phys. 16, 232–236 (2006). https://doi.org/10.1134/S1054660X06020046
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DOI: https://doi.org/10.1134/S1054660X06020046