In the paper, we analyze the layer-by-layer electromagnetic field distribution in a quasiperiodic dispersive aluminum photonic crystal film. We propose the new way to calculate such structures without the finite-difference time-domain (FDTD) numerical computing agreed with both the experimental spectrum and the FDTD simulation. Also, we found the first pore electromagnetic pumping at the photonic bandgap edge which is useful for the various fundamental and engineering applications.
We propose the new solid-state technique to generate paraphotons at a laboratory. To do this, we offer the using of the polaritons’ Bose-Einstein condensation in the mesoporous aluminum oxide photonic crystal film at the photonic bandgap edge. This way, in the nearest-to-the surface pore, the synchronicity conditions are met, and, due to the high density of polariton states, the two photons-to-a paraphoton converion is resonant.
We propose a novel, Kurosawa-like model to evaluate the 1D (Bragg stack-like) mesoporous aluminium oxide photonic crystal. To do this, we analyze the internal potential of the photonic crystal superlattice and get it describing the set of the medium’s polar oscillators. Unlike the atomic oscillators for a common crystal, these ones are the abstract ones. This way, the real photonic crystal can be dealt as an abstract oscillators’ ensemble. The result is fully agreed with the thermodynamics, and makes the theory very powerful. To obtain the oscillators parameters, we compare the theory with the secondary emission spectrum of the crystal, and get the natural frequency and the force for each oscillator. This phenomenological approach allow us to calculate photonic crystal’s optical characteristics, such as the dispersion law for the light in the nanostructure, the secondary emission spectrum of the composite, the speed of light in the crystal and the effective mass of the speed quanta. We establish the room-temperature Bose-Einstein condensation of polaritons in crystal at the photonic bandgap edge. The results are important to the solid-state detection of paraphotons.
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