Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Moshe G. Harats"'
Publikováno v:
Nature Photonics
We investigate the transport of excitons and trions in monolayer semiconductor WS$_2$ subjected to controlled non-uniform mechanical strain. We actively control and tune the strain profiles with an AFM-based setup in which the monolayer is indented b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ce56d435f0adc204e4fafade63e16199
https://doi.org/10.1038/s41566-019-0581-5
https://doi.org/10.1038/s41566-019-0581-5
Publikováno v:
Nano Letters
We investigate an excitonic peak appearing in low-temperature photoluminescence of monolayer transition metal dichalcogenides (TMDCs), which is commonly associated with defects and disorder. First, to uncover the intrinsic origin of defect-related ex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::38b51a7649098beb84b90b1cac3a214f
https://pubmed.ncbi.nlm.nih.gov/32191482
https://pubmed.ncbi.nlm.nih.gov/32191482
Autor:
Moshe G. Harats, Kirill I. Bolotin
Photoexcited electron-hole pairs (excitons) in transition metal dichalcogenides (TMDC) experience an effective force when these materials are non-uniformly strained. In the case of strain produced by a sharp tip pressing at the center of a suspended
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6588c97b619ea79352667f648c1134a0
https://doi.org/10.1088/2053-1583/abbabf
https://doi.org/10.1088/2053-1583/abbabf
Publikováno v:
Nano Letters. 16:2527-2532
One of the most important challenges in modern quantum optical applications is the demonstration of efficient, scalable, on-chip single photon sources, which can operate at room temperature. In this paper we demonstrate a room-temperature single phot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::debc5c13daef74fd45b52bce65c956d3
https://doi.org/10.1021/acs.nanolett.6b00082
https://doi.org/10.1021/acs.nanolett.6b00082
Autor:
Moshe G. Harats, Sviatoslav Kovalchuk, Jan N. Kirchhof, Katja Höflich, Guillermo López-Polín, Kirill I. Bolotin
Publikováno v:
2D Materials
We investigate the response of excitons in two-dimensional semiconductors to nonuniformity of mechanical strain. In our approach to non-uniform strain-engineering, a WS2 monolayer is suspended over a triangular hole. Large (>2%), strongly non-uniform
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3d617ea6086a53f4f112f571e3c147c3
https://doi.org/10.1088/2053-1583/ab8caa
https://doi.org/10.1088/2053-1583/ab8caa
Efficient Collection of Light from Colloidal Quantum Dots with a Hybrid Metal–Dielectric Nanoantenna
Publikováno v:
ACS Photonics. 2:1669-1674
We introduce a hybrid metal–dielectric nanoantenna consisting of a metallic bullseye nanostructure and a dielectric waveguide layer, for directing the photon emission of embedded colloidal nanocrystal quantum dots. This structure overcomes the intr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57529fd77b8e50555e0af170746e1ea6
https://doi.org/10.1021/acsphotonics.5b00433
https://doi.org/10.1021/acsphotonics.5b00433
Autor:
Shira Yochelis, Ronen Rapaport, Efrat Lifshitz, Moshe G. Harats, Yossi Paltiel, Gary Zaiats, Nitzan Livneh
Publikováno v:
Nano Letters. 14:5766-5771
We design a circular plasmonic lens for collimation of light emission from nanocrystal quantum dots at room temperature in the near IR spectral range. We implement a two-dimensional k-space imaging technique to obtain the full spectral-angular respon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4dc9f1f4fe85bfa00300df93841798f8
https://doi.org/10.1021/nl502652k
https://doi.org/10.1021/nl502652k
Publikováno v:
2015 International Conference on Optical MEMS and Nanophotonics (OMN).
We design a hybrid circular plasmonic-dielectric nanoantenna for collimation of light emission from nanocrystal quantum dots at room temperature in the near IR spectral range. We implement a two-dimensional k-space imaging technique to obtain the ful
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9ba1444ae07580bf1c9c1d21b60cf995
https://doi.org/10.1109/omn.2015.7288869
https://doi.org/10.1109/omn.2015.7288869
Publikováno v:
Frontiers in Optics 2015.
We design a hybrid plasmonic-dielectric nanoantenna for collimation of light emission from nanocrystal quantum dots at room temperature. We show single photon emission with a directional beam with FWHM of less than 3.5 degrees.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::207a1e3b4374b2a04e5e06b8afc0200e
https://doi.org/10.1364/fio.2015.fw5c.4
https://doi.org/10.1364/fio.2015.fw5c.4
Publikováno v:
Optical Materials Express. 7:834
In this work we detail the fabrication method of a hybrid metal-dielectric nanoantenna with a single nanocrystal quantum dot positioned in its center. We have recently shown in [Nano Lett.16, 2527 (2016)] that this device efficiently directs photons
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6769261b245b936b4c7878ca95349d31
https://doi.org/10.1364/ome.7.000834
https://doi.org/10.1364/ome.7.000834