Zobrazeno 1 - 10
of 40
pro vyhledávání: '"T. V. Shahbazyan"'
We study light absorption by weakly rough metal surfaces with the roughness amplitude and correlation length smaller than the skin depth in metal. We develop a systematic perturbative approach for calculation of the absorptance in such systems and fi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6e0418e5d721c69800b7b1cd66ea684c
Publikováno v:
Conference on Lasers and Electro-Optics.
Autor:
T. V. Shahbazyan, B. Keys
Publikováno v:
Metamaterials, Metadevices, and Metasystems 2017.
We develop a theory for surface-assisted plasmon decay in metal nanostructures of arbitrary shape. We derive the rate of electron surface scattering, which facilitates plasmon decay in small nanostructures, that is determined by local field polarizat
Autor:
Xinyu Liu, T. V. Shahbazyan, Jacek K. Furdyna, Ilias E. Perakis, Yu. D. Glinka, Y. Sasaki, Norman Tolk
Publikováno v:
Surface and Interface Analysis. 35:146-150
experiment, spin-polarized electrons are excited selectively by a pump beam in the GaAs layer of GaAs/GaSb/InAsstructures.However,theresultingnetmagnetizationmanifestsitselfthroughtheinduced SHG probe signal from the GaSb/InAs interface, thus indicat
Publikováno v:
Physica E: Low-dimensional Systems and Nanostructures. 14:172-176
We study theoretically the luminescence from quantum dots of a ring geometry. For high excitation intensities, photoexcited electrons and holes form Fermi seas. Close to the emission threshold, the single-particle spectral lines acquire weak many-bod
Publikováno v:
Journal of Superconductivity: Incorporating Novel Magnetism. 14:211-215
We study the role of spin correlations in nonlinear absorption due to optical transitions from a deep impurity level to states above a Fermi sea. We demonstrate that the Hubbard repulsion between two electrons occupying the impurity state leads to a
Publikováno v:
Physical Review B. 62:15925-15941
We study theoretically the ultrafast nonlinear optical response of quantum well excitons in a perpendicular magnetic field. We show that for magnetoexcitons confined to the lowest Landau levels, the third-order four-wave-mixing (FWM) polarization is
Publikováno v:
Physical Review Letters. 84:5896-5899
We study the role of spin correlations in nonlinear absorption due to optical transitions from a deep impurity level to states above a Fermi sea. We demonstrate that the Hubbard repulsion between two electrons occupying the impurity state leads to a
Publikováno v:
Physical Review Letters. 84:2006-2009
We study theoretically the coherent nonlinear optical response of doped semiconductors with partially occupied subbands. When the Fermi energy of an occupied subband approaches the exciton level of an upper subband, the absorption spectrum acquires a
Autor:
Ilias E. Perakis, T. V. Shahbazyan
Publikováno v:
Physical Review B. 60:9090-9099
We study the role of collective surface excitations in the electron relaxation in small metal particles. We show that the dynamically screened electron-electron interaction in a nanoparticle contains a size-dependent correction induced by the surface