Antireflective Photonic Structure for Coherent Nonlinear Spectroscopy of Single Magnetic Quantum Dots
| Autor: | Krzysztof Sawicki, Jolanta Borysiuk, Kamil Sobczak, Tomasz Jakubczyk, E. Janik, Jacek Kasprzak, Wojciech Pacuski, V. Delmonte, J.-G. Rousset |
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| Přispěvatelé: | Laboratoire de mécanique des fluides (LMF), École Centrale de Nantes (ECN)-Centre National de la Recherche Scientifique (CNRS), Nanophysique et Semiconducteurs (NPSC), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Institute of High Pressure Physics [Warsaw] (IHPP), Polska Akademia Nauk = Polish Academy of Sciences (PAN) |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Photoluminescence
Materials science Dephasing Exciton FOS: Physical sciences Physics::Optics 02 engineering and technology 01 natural sciences Condensed Matter::Materials Science Mesoscale and Nanoscale Physics (cond-mat.mes-hall) 0103 physical sciences General Materials Science [PHYS.COND]Physics [physics]/Condensed Matter [cond-mat] 010306 general physics Spectroscopy ComputingMilieux_MISCELLANEOUS Condensed Matter - Mesoscale and Nanoscale Physics Condensed Matter::Other business.industry General Chemistry Condensed Matter::Mesoscopic Systems and Quantum Hall Effect 021001 nanoscience & nanotechnology Condensed Matter Physics Distributed Bragg reflector 3. Good health Quantum dot Optoelectronics Photonics 0210 nano-technology business Coherence (physics) |
| Zdroj: | Crystal Growth & Design Crystal Growth & Design, American Chemical Society, 2017, 17 (6), pp.2987-2992. ⟨10.1021/acs.cgd.6b01596⟩ |
| ISSN: | 1528-7483 1528-7505 |
| DOI: | 10.1021/acs.cgd.6b01596⟩ |
| Popis: | This work presents epitaxial growth and optical spectroscopy of CdTe quantum dots (QDs) in (Cd,Zn,Mg)Te barriers placed on the top of (Cd,Zn,Mg)Te distributed Bragg reflector. The formed photonic mode in our half-cavity structure permits to enhance the local excitation intensity and extraction efficiency of the QD photoluminescence, while suppressing the reflectance within the spectral range covering the QD transitions. This allows to perform coherent, nonlinear, resonant spectroscopy of individual QDs. The coherence dynamics of a charged exciton is measured via four-wave mixing, with the estimated dephasing time $T_2=(210\,\pm\,40)$ ps. The same structure contains QDs doped with single Mn$^{2+}$ ions, as detected in photoluminescence spectra. Our work therefore paves the way toward investigating and controlling an exciton coherence coupled, via $s$,$p$-$d$ exchange interaction, with an individual spin of a magnetic dopant. 6 pages, 5 figures |
| Databáze: | OpenAIRE |
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