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Physica Status Solidi (B) Basic Research
type: Generically Dependent Continuant
type: Document
type: Information Content Entity
type: Collection
type: Entity
type: Thing
type: Periodical
publication venue for: Photoluminescence of Double Quantum Wells: Asymmetry and Excitation Laser Wavelength Effects
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Generically Dependent Continuant
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Photoluminescence of Double Quantum Wells: Asymmetry and Excitation Laser Wavelength Effects
type: Generically Dependent Continuant
crisid: 10189
related by: authorship_69959
has publication venue: Physica Status Solidi (B) Basic Research
related by: authorship_69958
abstract: Circularly polarized photoluminescence (PL) spectroscopy measured at 19 K on GaAs/AlGaAs symmetric and asymmetric double quantum wells (DQW) is reported. The PL is obtained by exciting the sample with a circularly polarized (left or right) laser in order to create an initial unbalanced distribution of electron spins in the conduction band and, in this way, obtain the electron spin lifetime (Formula presented.). The effects of the excitation laser wavelength are estimated by exciting with laser wavelengths of 701.0, 787.0, 801.5, and 806.5 nm. The increase of (Formula presented.) with the excitation wavelength is attributed to the lower initial quasimomentum k of the excited carriers, which also reduces spin–orbit relaxation processes. (Formula presented.) is found to be higher in asymmetric DQWs: this is attributed to the wider QWs in these samples, which reduces spin relaxation due to the Dresselhaus mechanism. In addition, a smaller contribution from the Rashba mechanism is also detected by comparing samples with built-in electric fields of different orientations defined by doped barrier layers. © 2022 Wiley-VCH GmbH.
related by: authorship_69956
artnum: 2100612
type: Thing
date time value: article date 10189
type: Entity
e iscopus: 2-s2.0-85124569792
volume: 259
related by: authorship_69961
type: Document
most specific type: Document
accesstype: All Open Access, Green
issue: 4
has funding vehicle: FC 2016‐02‐2093
related by: authorship_69960
doi: 10.1002/pssb.202100612
type: Information Content Entity
type: Continuant
related by: authorship_69957
type: Article
freetext keyword: photoluminescence; quantum wells; spin dynamics Circular polarization; Electric fields; Electrospinning; Gallium arsenide; III-V semiconductors; Laser excitation; Photoluminescence; Photoluminescence spectroscopy; Quantum well lasers; Spin dynamics; Asymmetric double quantum wells; Circularly-polarized; Double quantum-well; Excitation lasers; GaAs/AlGaAs; Laser wavelength; Laser-wavelength effects; Polarized photoluminescence; Quantum-wells; Symmetrics; Semiconductor quantum wells
estado: published
origen: scopus
most specific type: Article

RDF description of Photoluminescence of Double Quantum Wells: Asymmetry and Excitation Laser Wavelength Effects - http://orbis.uaslp.mx/vivo/individual/scopus10188
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date: 2026-08-24T04:54:23
publisher: vivo
type: Document

FC 2016‐02‐2093
type: Relationship
type: BFO_0000020
type: Entity
type: Thing
type: Grant
type: Continuant
funding vehicle for: Photoluminescence of Double Quantum Wells: Asymmetry and Excitation Laser Wavelength Effects

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