Výsledky vyhledávání

Weak coupling effects in high‐Q electrically driven micropillars

Autor: R. Debusmann, Laurent Grenouillet, C. Kistner, Sven Höfling, Julien Claudon, Jean-Michel Gérard, Alfred Forchel, C. Böckler, Stephan Reitzenstein

Publikováno v: physica status solidi c. 6:381-384

We present cavity quantum electrodynamics (cQED) effects in electrically driven high quality (high-Q) quantum dot-micropillar cavities. An optimized current injection scheme is employed, which enables simultaneously efficient electrical pumping and e

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f8b84a19bfc55c63e8b6ddaeb6820f1d
https://doi.org/10.1002/pssc.200880344

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Single quantum dot controlled gain modulation in high-Q micropillar lasers

Autor: S. Munch, Martin Kamp, A. Gorbunov, C. Böckler, V. D. Kulakovskii, Andreas Löffler, A. Bazhenov, Alfred Forchel, Stephan Reitzenstein

Publikováno v: physica status solidi (b). 246:277-282

Reducing the threshold power and the active material are key issues in the development of semi-conductor lasers. Considerable advances have been achieved in this field by combining high quality microre-sonators with self assembled quantum dots as the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7ae19f7e8f8313ed8aaaa0658fe47f3d
https://doi.org/10.1002/pssb.200880358

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High-Q whispering gallery modes in pillar microcavities

Autor: Martin Kamp, Yoanna-Reine Nowicki-Bringuier, Stephan Reitzenstein, Alfred Forchel, Julien Claudon, C. Böckler, Jean-Michel Gérard

Publikováno v: Annales de Physique. 32:123-126

We report the observation of high- Q whispering gallery modes ( Q > 10 000) in GaAs/AlAs pillar microcavities containing InAs quantum dots as an internal probe. A simple model based on the effective index method describes precisely the evolution of t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1280790768294e0b7db302fbcf9e588d
https://doi.org/10.1051/anphys:2008023

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Polarization-dependent strong coupling in elliptical high-Qmicropillar cavities

Autor: L. Worschech, Stephen H. Hughes, Andreas Löffler, Sven Höfling, C. Böckler, Alfred Forchel, P. Yao, Stephan Reitzenstein

Publikováno v: Physical Review B. 82

We present a combined experimental and theoretical study of the polarization-dependent strong-coupling regime between two quantum dots and an asymmetric micropillar cavity. The photoluminescence emission demonstrates that the fundamental cavity mode

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9b0d0df7778c5008714fe708182f87e2
https://doi.org/10.1103/physrevb.82.235313

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Cavity quantum electrodynamics effects in electrically driven high-Q micropillar cavities

Autor: Stephan Reitzenstein, C. Schneider, Alfred Forchel, Sven Höfling, C. Kistner, Tobias Heindel, C. Böckler

Publikováno v: 2008 International Nano-Optoelectronics Workshop.

We realized high-quality electrically pumped mircopillar cavities featuring pronounced cQED effects, such as weak coupling and high-beta lasing. The high quality of the electrically contacted micropillars allowed the observation of strong coupling vi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d848042dbd6d1df1c55f9386c2369a78
https://doi.org/10.1109/inow.2008.4634526

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Recombination dynamics in wurtzite InP nanowires

Autor: C. Böckler, S. Munch, L.C. Chuang, Shanna Crankshaw, M. Moewe, Connie J. Chang-Hasnain, Stephan Reitzenstein, Alfred Forchel

Publikováno v: Physical Review B. 77

We report time-resolved photoluminescence investigations of as-grown wurtzite InP nanowires $({d}_{\text{av}}=16\text{ }\text{nm})$ on a (111) silicon substrate as a function of emission energy, temperature, and excitation fluence. The observed lumin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3af510f7be3266beb98f4dbbb6d983d2
https://doi.org/10.1103/physrevb.77.235409

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Electrically driven quantum dot high quality factor micropillar cavities

Autor: Jean-Michel Gérard, Andreas Löffler, C. Kistner, R. Debusmann, Stephan Reitzenstein, C. Böckler, Alfred Forchel, Julien Claudon, Laurent Grenouillet, Sven Höfling

Publikováno v: 2008 20th International Conference on Indium Phosphide and Related Materials.

We report on electrically driven quantum dot micropillar cavities with quality factors (Q-factors) up to 16.000. A special lateral current injection scheme into small mode volume micropillars is employed which ensures an efficient light outcoupling.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8acd679116e4d2ceaed70eac550306b4
https://doi.org/10.1109/iciprm.2008.4703031

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Time resolved micro-photoluminescence studies of as-grown and surface passivated InP-nanowires grown by low pressure MOVPE

Autor: C. Böckler, S. Munch, L.C. Chuang, M. Moewe, Constance J. Chang-Hasnain, Shanna Crankshaw, Alfred Forchel, Stephan Reitzenstein

Publikováno v: 2007 International Nano-Optoelectronics Workshop.

We present optical studies of single InP nanowires. The nanowires show small emission linewidths as low as 2.3 meV and a low surface recombination velocity. HF passivation results in a strong increase of PL intensity.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cda3ab6561ddded2f5bab1f51332ab05
https://doi.org/10.1109/inow.2007.4302942

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High Q whispering gallery modes in GaAs/AlAs pillar microcavities

Autor: Martin Kamp, Alfred Forchel, Yoanna-Reine Nowicki-Bringuier, Jean-Michel Gérard, Stephan Reitzenstein, Alain Morand, Julien Claudon, C. Böckler

Publikováno v: Optics Express
Optics Express, Optical Society of America-OSA Publishing, 2007, 15 (25), pp.17291. ⟨10.1364/OE.15.017291⟩
Optics Express, 2007, 15 (25), pp.17291. ⟨10.1364/OE.15.017291⟩
Scopus-Elsevier

We report the observation of whispering gallery modes (WGM) in high quality GaAs/AlAs pillar microcavities defined by electron-beam lithography and electron cyclotron resonance reactive ion etching. Photoluminescence experiments, conducted using InAs

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::38ccdf0c6adb25cb888ddd776947ee41
https://hal.univ-grenoble-alpes.fr/hal-01974376

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Electrically driven high-Q quantum dot-micropillar cavities

Autor: C. Böckler, Julien Claudon, C. Kistner, Jean-Michel Gérard, T. Kida, Stephan Reitzenstein, Laurent Grenouillet, Andreas Löffler, Sven Höfling, Alfred Forchel, R. Debusmann

Publikováno v: Applied Physics Letters. 92:091107

We report on electrically pumped high-Q quantum dot-micropillar cavities with quality factors of up to 16.000. A special current injection scheme using a ring-shaped upper contact is presented which ensures an efficient light out-coupling through the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1e5de9332ce2e1cd265390066d5743cc
https://doi.org/10.1063/1.2890166

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