Showing papers by "J. J. Sánchez-Mondragón published in 2000"
22 May 2000
TL;DR: In this paper, the selection of the electromagnetic modes of a dielectric sphere in a compound multilayer resonator of optical frequencies is investigated for systems of optical layers with arbitrary ratio between layer thickness and wavelength.
Abstract: The paper investigates the selection of the electromagnetic modes of a dielectric sphere in a compound multilayer resonator of optical frequencies. The waveguide properties of the spherical stack are investigated for systems of optical layers with arbitrary ratio between layer thickness and wavelength. The appropriate matrix formalism is developed. Both the reflection coefficient and the impedance of the stack are calculated. Depending on the number of layers, it is possible to decrease sharply the impedance of the system. It is shown that increasing the number of layers in the stack considerably increases the quality of oscillations. We offer to use such systems in optical communication systems for processing of signals.
1 citations
22 May 2000
TL;DR: In this article, the results of numerical simulations of nonlinear dynamics of one-dimensional pulses of backward volume magnetostatic waves are presented where the exact wave dispersion is used.
Abstract: The results of numerical simulations of nonlinear dynamics of one-dimensional pulses of backward volume magnetostatic waves are presented where the exact wave dispersion is used. The method of splitting on physical factors is utilized. It is shown that in the case of small wave numbers (k/sub 0/ /spl sim/100 cm/sup -1/), it is impossible to use any polynomial approximation for a wave dispersion; for greater wave numbers (k/sub 0/ /spl sim/400 cm/sup -1/), a parabolic approximation is suitable. We also discuss briefly the two-dimensional dynamics of nonlinear pulses.