Специализация: 010900 Прикладная математика и физика
Программа: 04 Оптика полупроводниковых наноструктур и нанотехнологии
Руководитель программы: д.ф.-м.н., проф. В.Ф. Агекян
Кафедра физики твердого тела
Научный руководитель: д.ф.-м.н., проф. А.В. Селькин
Рецензент: д.ф.-м.н., проф. Ю.Ф. Марков.

Dynamical diffraction of light from planar spatially periodic medium
K.O. Romanenko

Bragg reflection spectra of the 1D photonic crystals characterized by the spatially sinusoidal profile of permittivity are studied as a function of the crystal-plate thickness. Applicability of the dynamical diffraction theory to describing such spectra is considered. In this study, we (i) calculated and analyzed in the frame work of the dynamical diffraction theory the reflection spectra for oblique incidence of polarized light, (ii) computed the spectra using the transfer matrix technique and (iii) compared quantitatively the results of the two approaches.
As a result, the analytical dynamical diffraction theory was found to be correct when describing the Bragg reflection spectra of 1D photonic crystal with any thickness in the vicinity of the single photonic band-gap if the crystal permittivity harmonically varies in space.

List of publications
1. K.O. Romanenko, A.V. Sel’kin. Dynamical Diffraction Theory and Bragg Spectroscopy of Light // Proc. “Optics-2011”. St. Petersburg, 2011.
2. K.O. Romanenko. Bragg reflection of light from 1D photonic crystals and dynamical diffraction theory // Conference Abstracts. International Student Conference “Science and Progress”. St. Petersburg – Peterhof, 2011.
3. K.O. Romanenko, A.V. Sel’kin. Dynamical Diffraction of Light in Opal-like Photonic Crystals: 1D spatial-periodic structure approximation // Proc. “Opal-like Structures”. St. Petersburg, 2012.