Banca de DEFESA: WILLYAM THOMPSON SOARES DE FREITAS

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : WILLYAM THOMPSON SOARES DE FREITAS
DATA : 13/03/2023
HORA: 15:30
LOCAL: Online
TÍTULO:

Magneto-Optical Effects in InSb at THz Frequencies

PALAVRAS-CHAVES:

 Magnetoplasmons, Goos-Hänchen, Surface Polaritons.

PÁGINAS: 61
GRANDE ÁREA: Ciências Exatas e da Terra
ÁREA: Física
SUBÁREA: Física da Matéria Condensada
ESPECIALIDADE: Prop. Óticas e Espectrosc. da Mat. Condens; Outras Inter. da Mat. com Rad. e Part.
RESUMO:

We investigate the magneto-optical eff ects in refl ection for radiation in oblique incidence
in InSb in the THz frequency range, through numerical simulations. The eff ects of interest
occur in the reststrahl region, these eff ects being linked to the surface polaritons and the
surface resonances that appear as an extension of the surface polaritons in the region
where |k x | < k 0 . Our refl ection simulations for InSb considered room temperature and
an undoped sample. We demonstrate some interesting eff ects for an external magnetic
fi eld small in relation to those present in the literature. The most valuable results were
obtained for the external magnetic fi eld of +0.05 T. In terms of the Goos-Hänchen eff ect,
we obtained a clear shift in the upper reststrahl region. As for refl ectivity, we also
had minima in its values in the upper reststrahl region that follow the line of surface
resonances. We also demonstrate the non-reciprocal eff ects due to the external magnetic
fi eld, in addition to the antisymmetry and non-symmetry of some parameters.

MEMBROS DA BANCA:
Presidente - 3300 - THOMAS DUMELOW
Interno - 7958 - JOSÉ ALZAMIR PEREIRA DA COSTA
Externo à Instituição - SUBENIA KARINE DE MEDEIROS - UFERSA