Modelling and optimization of the excitonic diffraction grating

Autor: Shapochkin, P. Yu., Petrov, Yu. V., Eliseev, S. A., Lovcjus, V. A., Efimov, Yu. P., Kapitonov, Yu. V.
Rok vydání: 2019
Předmět:
Druh dokumentu: Working Paper
DOI: 10.1364/JOSAA.36.001505
Popis: Periodical spatial modulation of the excitonic resonance in a quantum well could lead to the formation of a new highly directional and resonant coherent optical response -- resonant diffraction. Such excitonic diffraction gratings were demonstrated in epitaxially grown quantum wells patterned by the low-dose ion beam irradiation before or after the growth. In this paper we present a theoretical model of the resonant diffraction formation based on the step-by-step approximation of the Maxwell equation solution. The resulting theory allows us to reliably describe experimental data, as well as to predict the way to increase the diffraction efficiency.
Comment: Shortened version
Databáze: arXiv