Banca de DEFESA: JEFFERSON DA ROCHA SILVA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : JEFFERSON DA ROCHA SILVA
DATE: 25/02/2022
TIME: 14:00
LOCAL: Instituto de Física (remoto)
TITLE:

Transmission and reflection of electromagnetic beams by a stack of materials having PT symmetry

KEY WORDS:

PT symmetry, Gaussian beam, Classical optics

PAGES: 61
BIG AREA: Ciências Exatas e da Terra
AREA: Física
SUMMARY:

We introduce a model for the interaction between a Gaussian beam and a dielectric structure composed of three isotropic layerswith balanced gain and loss, satisfyingthePT symmetry condition,with the central layerbeinga passive one (no gain or loss). Our objective is to calculate the reflection and transmission coefficients of the system and verity their dependence on the geometrical and gain/loss properties of the materials. The size of the central layer can be controlled, varying from zero (by-layer) to a finite value (tri-layer) and the gain/loss rate of the active layers can also be controlled by varying the imaginary part of the refractive index. We compare the results obtained with the Gaussian beam with the usual plane wave model and the differences found between both models are discussed.

BANKING MEMBERS:
Externo à Instituição - ALEX EMANUEL BARROS COSTA
Interno - 1411788 - PAULO CESAR AGUIAR BRANDAO FILHO
Interna - 1120622 - SOLANGE BESSA CAVALCANTI