Zobrazeno 1 - 10
of 29
pro vyhledávání: '"L. O. Mereni"'
Autor:
Gediminas Juska, Valeria Dimastrodonato, Agnieszka Gocalinska, L. O. Mereni, Emanuele Pelucchi
Publikováno v:
Web of Science
We show that with a new family of pyramidal site-controlled InGaAsN quantum dots it is possible to obtain areas containing as much as 15% of polarization-entangled photon emitters - a major improvement if compared to the small fraction achievable by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a6f809de6b6df06d92b60f7bd1f7bc39
https://doi.org/10.1038/nphoton.2013.128
https://doi.org/10.1038/nphoton.2013.128
Autor:
L. A. Larsson, D. Dufåker, V. Dimastrodonato, Per-Olof Holtz, Evgenii Moskalenko, Urban Forsberg, Karl Fredrik Karlsson, Erik Janzén, Chih-Wei Hsu, L. O. Mereni, Emanuele Pelucchi, Anders Lundskog
Publikováno v:
Physica B: Condensed Matter. 407:1472-1475
Optical characterization of single quantum dots (QDs) by means of micro-photoluminescence (μPL) will be reviewed. Both QDs formed in the Stranski–Krastanov mode as well as dots in the apex of pyramidal structures will be presented. For InGaAs/GaAs
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a498cb111b55681c6af091cc5069cf9c
https://doi.org/10.1016/j.physb.2011.09.064
https://doi.org/10.1016/j.physb.2011.09.064
Autor:
Valeria Dimastrodonato, Emanuele Pelucchi, L. O. Mereni, Gediminas Juska, Agnieszka Gocalinska
Publikováno v:
Current Opinion in Solid State and Materials Science. 16:45-51
Pyramidal quantum dots (QDs) grown in inverted recesses have demonstrated over the years an extraordinary uniformity, high spectral purity and strong design versatility. We discuss recent results, also in view of the Stranski–Krastanow competition
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f2a071e5a4ca096b12ac29580f7850aa
https://doi.org/10.1016/j.cossms.2011.09.002
https://doi.org/10.1016/j.cossms.2011.09.002
Autor:
V. Dimastrodonato, L. O. Mereni, S.B. Healy, Robert J. Young, Emanuele Pelucchi, Eoin P. O'Reilly
Publikováno v:
Physica E: Low-dimensional Systems and Nanostructures. 42:2761-2764
Recent work has shown that site-controlled dots (QD) grown on (1 1 1)B GaAs substrates, pre-patterned with tetrahedral pyramidal recesses (Baier et al., 2006) [1], (Pelucchi et al., 2007) [2], (Zhu et al., 2007) [3] are suitable for the generation of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9658f114f24eff89fb4bde8b0f920926
https://doi.org/10.1016/j.physe.2009.11.099
https://doi.org/10.1016/j.physe.2009.11.099
Publikováno v:
physica status solidi (b). 247:1862-1866
This work presents some fundamental features of pyramidal site-controlled In GaAs Quantum Dots (QDs) grown by metal-organic vapour phase epitaxy on patterned GaAs (111)B substrate. The dots self-form inside pyramidal recesses patterned on the wafer v
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b692e1de10385bb608d20ad53b76852
https://doi.org/10.1002/pssb.200983803
https://doi.org/10.1002/pssb.200983803
Publikováno v:
Superlattices and Microstructures. 47:78-82
We report on the optical properties of site-controlled InGaAs dots in GaAs barriers grown in pre-patterned, large pitch, pyramidal recesses by metalorganic vapour phase epitaxy. The inhomogeneous broadening of excitonic emission from an ensemble of q
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::30df0d673724c32317643c64ef723e08
https://doi.org/10.1016/j.spmi.2009.07.033
https://doi.org/10.1016/j.spmi.2009.07.033
Autor:
B. Van Hattem, Valeria Dimastrodonato, Agnieszka Gocalinska, M. Ediger, Pierre Corfdir, L. O. Mereni, Gediminas Juska, Emanuele Pelucchi, T. H. Chung
Publikováno v:
Physical Review B. 89
A study of previously overlooked structural and optical properties of InGaAs heterostructures grown on (111)$B$ oriented GaAs substrates patterned with inverted 7.5-\ensuremath{\mu}m pitch pyramidal recesses is presented. First, the composition of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d48cc7c10d2d866a561cebe4488e98be
https://doi.org/10.1103/physrevb.89.205430
https://doi.org/10.1103/physrevb.89.205430
Autor:
V. Dimastrodonato, L. O. Mereni, Per-Olof Holtz, Emanuele Pelucchi, Gediminas Juska, D. Dufåker, Karl Fredrik Karlsson
Publikováno v:
Physical Review B. 87
In this experimental study of single InGaAs/GaAs quantum dots (QDs) the photoluminescence intensity of the second order LO-phonon replica of the excitonic interband recombination was measured along with the intensities of the first and zeroth orders.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3b563b0c73570b0092afaea2179dc405
https://doi.org/10.1103/physrevb.87.085317
https://doi.org/10.1103/physrevb.87.085317
Autor:
L. O. Mereni, Per-Olof Holtz, D. Dufåker, Gediminas Juska, V. Dimastrodonato, Karl Fredrik Karlsson, Emanuele Pelucchi
In this thesis two very similar processes have been studied, both involving excitations of particles during recombination of exciton complexes in quantum dots, reducing the energy of the emitted photon. Different exciton complexes are defined accordi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f0a8806c70512a168a51cf36f00f92fb
http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-92307
http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-92307
Publikováno v:
AIP Conference Proceedings.
We present a site-controlled, highly symmetric quantum dot system with a density of at least 15 % of polarization-entangled photon emitters. Fidelity values of the entangled state as high as 0.721±0.043 were found.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7641da6b978c580780c8947f1a247523
https://doi.org/10.1063/1.4848535
https://doi.org/10.1063/1.4848535