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Proceedings Paper

Eigenmodes of semiconductor spin-lasers with local linear birefringence and gain dichroism (Conference Presentation)

Paper Abstract

We present a general method for modeling spin-lasers such as spin-polarized vertical cavity surface emitting laser (spin-VCSELs) with multiple quantum wells including anisotropic effects such as i) the emission of elliptically-polarized photons and originating from unbalanced spin-up and spin-down pumps, ii) the linear gain dichroism originating from the reduction from Td to C2v symmetry group at the III-V ternary interfaces and iii) the locally linear birefringence due to the anisotropic strain field at surface of ½ VECSELs an optical birefringence of quantum wells from the Henry’s factor. New recurrence calculations, together with analytically gain tensor derived from Maxwell-Bloch equations, enable to model emission from multiple quantum well active zones to find the laser resonance conditions and properties of eigenmodes. The method is demonstrated on real semiconductor laser structures. It is used for the extraction of optical permittivity tensors of surface strain and of quantum wells (QWs). The laser structures are also experimentally studied via ellipsometry methods by measurement of the rotation spectra of complete Mueller matrix in the reflection geometry. The anisotropic optical permittivity constants in the spectral range from 0.73 to 6.4 eV are modeled in order to disantangle surface and QWs contributions to the linear optical birefringence of the structures.

Paper Details

Date Published: 19 September 2017
Proc. SPIE 10357, Spintronics X, 103572I (19 September 2017); doi: 10.1117/12.2278023
Show Author Affiliations
Henri Jaffrès, Unité Mixte de Physique CNRS, Thales (France)
Tibor Fordos, VŠB-Technical Univ. of Ostrava (Czech Republic)
Ecole Polytechnique (France)
Kamil Postava, VŠB-Technical Univ. of Ostrava (Czech Republic)
Jaromir Pištora, VŠB-Technical Univ. of Ostrava (Czech Republic)
Arnaud Garnache, Univ. Montpellier (France)
Henri-Jean Drouhin, Ecole Polytechnique (France)

Published in SPIE Proceedings Vol. 10357:
Spintronics X
Henri-Jean Drouhin; Jean-Eric Wegrowe; Manijeh Razeghi; Henri Jaffrès, Editor(s)

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