Zobrazeno 1 - 10 of 80 pro vyhledávání: '"Khalid Lahlil"'
1
Akademický článek
Light‐tunable optical cell manipulation via photoactive azobenzene‐containing thin film bio‐substrate
Autor: Olivier Lefebvre, Sandra Pinto, Khalid Lahlil, Jacques Peretti, Claire Smadja, Clotilde Randriamampita, Mireille Lambert, Filippo Fabbri
Publikováno v: Nano Select, Vol 3, Iss 9, Pp 1337-1343 (2022)
Abstract Live real‐time study of the local and collective cellular biomechanical responses requires the fine and selective manipulation of the cellular environment. One innovative pathway is the use of photoactive bio‐substrates such as azobenzen
Externí odkaz: https://doaj.org/article/1063c50396254dd88caa16917d5cb251
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2
Akademický článek
Measuring 3D orientation of nanocrystals via polarized luminescence of rare-earth dopants
Autor: Jeongmo Kim, Reinaldo Chacón, Zijun Wang, Eric Larquet, Khalid Lahlil, Aymeric Leray, Gérard Colas-des-Francs, Jongwook Kim, Thierry Gacoin
Publikováno v: Nature Communications, Vol 12, Iss 1, Pp 1-10 (2021)
Determining the orientation of nanoscale objects in three-dimensional space has typically required complicated optical setups. Here, the authors develop a simple method to retrieve the 3D orientation of luminescent, lanthanide-doped nanorods from a s
Externí odkaz: https://doaj.org/article/8333ce136f2e46ecbf564987c71ed7ca
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3
Akademický článek
NaYF4 Microstructure, beyond Their Well-Shaped Morphology
Autor: Godefroy Leménager, Sandrine Tusseau-Nenez, Maud Thiriet, Pierre-Eugène Coulon, Khalid Lahlil, Eric Larquet, Thierry Gacoin
Publikováno v: Nanomaterials, Vol 9, Iss 11, p 1560 (2019)
Lanthanide-doped nanoparticles are widely investigated for their optical properties. However, the sensitivity of the lanthanide ions’ luminescence to the local symmetry, useful when investigating structural environments, becomes a drawback for opti
Externí odkaz: https://doaj.org/article/5a362b9483f2413fa614ce1ca7c1b736
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4
Emission spectroscopy of NaYF4:Eu nanorods optically trapped by Fresnel lens fibers
Autor: Khalid Lahlil, Jochen Fick, Alois Herkommer, Harald Giessen, Aashutosh Kumar, Simon Thiele, Jeongmo Kim, Asa Asadollahbaik, Jongwook Kim, Thierry Gacoin, Síle Nic Chormaic
Publikováno v: Photonics Research. 10(2):332-339
NaYF 4 : Eu nanorods with high aspect ratios are elaborated and optically trapped using dual fiber optical tweezers in a counterpropagating geometry. High trapping efficiency is observed using converging beams, emitted from diffractive Fresnel lenses
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::17acebfaf510a587f95c749b6ed77a2d
http://id.nii.ac.jp/1394/00002316/
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7
Measuring the order parameter of vertically aligned nanorod assemblies
Autor: Khalid Lahlil, Jongwook Kim, Thierry Gacoin, Jeongmo Kim
Publikováno v: Nanoscale
Nanoscale, Royal Society of Chemistry, 2021, 13 (16), pp.7630-7637. ⟨10.1039/d0nr08452b⟩
International audience; Vertically aligned nanorods assemblies are of great interest both for fundamental studies of anisotropic physical properties arising from the structures and for the development of functional devices utilizing such anisotropic
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f7715bda01cb7fba1c85f3d8f7b4b40b
https://pubmed.ncbi.nlm.nih.gov/33928956
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8
Measuring 3D orientation of nanocrystals via polarized luminescence of rare-earth dopants
Autor: Thierry Gacoin, Zijun Wang, Aymeric Leray, Jeongmo Kim, Jongwook Kim, Khalid Lahlil, Eric Larquet, Reinaldo Chacon, Gérard Colas-des-Francs
Publikováno v: Nature Communications
Nature Communications, Nature Publishing Group, 2021, 12 (1), ⟨10.1038/s41467-021-22158-4⟩
Nature Communications, Vol 12, Iss 1, Pp 1-10 (2021)
Orientation of nanoscale objects can be measured by examining the polarized emission of optical probes. To retrieve a three-dimensional (3D) orientation, it has been essential to observe the probe (a dipole) along multiple viewing angles and scan wit
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::011e5879db24b753704ab7b5aa311d3f
http://europepmc.org/articles/PMC8007814
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9
Trapping of rare earth-doped nanorods using quasi Bessel beam optical fiber tweezers
Autor: Aashutosh Kumar, Thierry Gacoin, U. Tiwari, R. A. Minz, Jochen Fick, S. Nic Chormaic, Khalid Lahlil, Samir K. Mondal
Publikováno v: OSA Continuum
OSA Continuum, OSA Publishing, 2021, 4 (2), pp.364-373. ⟨10.1364/OSAC.417151⟩
We demonstrate optical trapping of rare earth-doped NaYF4:Er/Yb nanorods of high aspect ratio (length 1.47 μm and diameter 140 nm) using a quasi Bessel beam (QBB) generated by positive axicon optical fiber tips. Propulsion or trapping of the nanorod
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2528569fc5ff4ab6e42f5d0bd0cc0de7
https://hal.archives-ouvertes.fr/hal-03120960/file/2021.Minz_OSAC.pdf
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10
Measuring the magnetic dipole transition of single nanorods by spectroscopy and Fourier microscopy
Autor: G. Colas des Francs, Jeongmo Kim, Jongwook Kim, Alexandre Bouhelier, Thierry Gacoin, Khalid Lahlil, S. Mathew, Reinaldo Chacon, Aymeric Leray
Publikováno v: Physical Review Applied
Physical Review Applied, American Physical Society, 2020, 14, pp.054010. ⟨10.1103/PhysRevApplied.14.054010⟩
International audience; Rare-earth doped nanocrystals possess optical transitions with significant either electric or magnetic dipole characters. They are of considerable interest for understanding and engineering light-matter interactions at the nan
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f8cf14048a788e83705c70c4f38a68f
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