Journal ArticleDOI
Band-Edge Electroabsorption in Quantum Well Structures: The Quantum-Confined Stark Effect
David A. B. Miller,Daniel S. Chemla,T. C. Damen,Arthur C. Gossard,W. Wiegmann,Thomas H. Wood,Charles A. Burrus +6 more
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In this article, the authors present theory and extended experimental results for the large shift in optical absorption in GaAs-AlGaAs quantum well structures with electric field perpendicular to the layers.Abstract:
We present theory and extended experimental results for the large shift in optical absorption in GaAs-AlGaAs quantum well structures with electric field perpendicular to the layers. In contrast to the Stark effect on atoms or on excitons in bulk semiconductors, the exciton resonances remain resolved even for shifts much larger than the zero-field binding energy and fields g 50 times the classical ionization field. The model explains these results as a consequence of the quantum confinement of carriers.read more
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Journal ArticleDOI
Complex scaling approach for the quantum confined Stark effect in quantum wells
Lev I. Deych,I. V. Ponomarev +1 more
TL;DR: In this paper, a computationally efficient approach to calculate characteristics of quantum well excitons in an external electric field is introduced, which allows one to simultaneously obtain the field-induced shift and the broadening of the exciton resonance.
Journal ArticleDOI
107 Gb/s Ultra-High Speed, Surface-Normal Electroabsorption Modulator Devices
Stefano Grillanda,Gregory Raybon,Andrew Adamiecki,Nicolas K. Fontaine,Mark Earnshaw,Ting-Chen Hu,David T. Neilson,Nagesh R. Basavanhally,Y. Low,Hugo Safar,Mark Cappuzzo,Rose Kopf,A. Tate +12 more
TL;DR: In this paper, large-scale arrays of reflective surface normal electroabsorption modulators (SNEAMs) with very small active volumes, with very low total input/output coupling loss of 0.7 dB to single-mode-fibers are demonstrated.
Journal ArticleDOI
Stark effect in finite-barrier quantum wells, wires, and dots
TL;DR: In this article, a unifying analytic theory for the Stark effect in arbitrary dimensional nanostructures is presented, and the crucial role of finite potential barriers is stressed, in particular for three-dimensional confinement.
Dissertation
Cavity quantum electrodynamics with carbon nanotubes
TL;DR: In this paper, an original setup combining a confocal microscope and a fiber-based micro-cavity which is both spatially and spectrally tunable is presented.
Journal ArticleDOI
Characterization of excitons in wurtzite GaN quantum wells under valence band mixing, strain, and piezoelectric field
TL;DR: In this article, the authors derived the fractional dimensionality of the QW excitons in the absence of the piezoelectric field, which can in principle be cancelled by introducing delta-doped ionized layers on either side of the well.