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Experimental verification of position-dependent angular-momentum selection rules for absorption of twisted light by a bound electron
(IOP Publishing, 2018-02)
We analyze the multipole excitation of atoms with twisted light, i.e, by a vortex light field that carries orbital angular momentum. A single trapped 40Ca+ ion serves as a localized and positioned probe of the exciting ...
Rolled-up quantum wells composed of nanolayered InGaAs/GaAs heterostructures as optical materials for quantum information technology
(Universidade Federal de Minas GeraisBrasilICX - DEPARTAMENTO DE FÍSICAUFMG, 2021)
Selection rules for the excitation of quantum dots by spatially structured light beams: Application to the reconstruction of higher excited exciton wave functions
(American Physical Society, 2020-10)
Spatially structured light fields applied to semiconductor quantum dots yield fundamentally different absorption spectra than homogeneous beams. In this paper, we provide a detailed theoretical discussion of the resulting ...
Miniband effect on optical vibrations in short-period InGaAs/InP superlattices
(APS, 2006-12)
The formation of the miniband electron energy structure and its effect on optical vibrational modes were explored in doped InxGa1?xAs/InP superlattices with different periods. The analysis of the high resolution x-ray ...
Optical fiber sensors for measurements in life sciences
(2018-11-02)
The fiber optic communications industry has undoubtedly revolutionized the information and telecommunications technology (ICT) offering higher-performance and more reliable telecommunication links with ever decreasing ...
Optically pump-induced athermal and nonresonant refractive index changes in the reference Cr-doped laser materials: Cr:GSGG and ruby
(Optical Society of America - OSAWashington, DC, 2012-05)
The refractive index of most ion-doped materials increases with the excited state population. This effect was studied in many laser materials, particularly those doped with 'Cr POT. 3+' and rare earth ions, using several ...
Analytical expressions for the FM and AM responses of an integrated laser-modulator
(1996-06-01)
The need for low-chirp and compact transmitters for high-bit-rate optical links has led to the development of integrated laser electroabsorption modulators (ILM). We have investigated feedback effects inducing frequency ...
Analytical expressions for the FM and AM responses of an integrated laser-modulator
(1996-06-01)
The need for low-chirp and compact transmitters for high-bit-rate optical links has led to the development of integrated laser electroabsorption modulators (ILM). We have investigated feedback effects inducing frequency ...
Interação plasmon-fônon LO em superredes semicondutoras
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-Graduação em Física - PPGF, 2008-10-07)
This work presents a Raman investigation of the optical vibrations in highly doped In-GaAs/InP and GaAs/AlGaAs superlattices (SL s). The InGaAs/InP SL s grown with different
periods were analyzed using polarized Raman ...