Resonant Transmission of a Light Pulse through a Quantum Well

Details Resonant Transmission of a Light Pulse through a Quantum Well Resonant Transmission of a Light Pulse through a Quantum Well

2007-11-08

arxiv.org/abs/0711.1202v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

8 pages, 8 figures

Scientific paper

10.1007/s11451-008-2020-1

Reflectance, transmittance and absorbance of a symmetric light pulse, the carrying frequency of which is close to the frequency of interband transitions in a quantum well, are calculated. Energy levels of the quantum well are assumed discrete, and two closely located excited levels are taken into account. The theory is applicable for the quantum wells of arbitrary widths when the size quantization is preserved. A distinction of refraction indices of barriers and quantum well is taken into account. In such a case, some additional reflection from the quantum well borders appears which changes essentially a shape of the reflected pulse in comparison to homogeneous medium. The reflection from the borders disappears at some definite ratios of the carrying frequency of the stimulating pulse and quantum well width.

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