Zobrazeno 1 - 10 of 13 pro vyhledávání: '"Thonimar V Alencar"'
1
Angle-tunable intersubband photoabsorption and enhanced photobleaching in twisted bilayer graphene
Autor: Ana Maria de Paula, Pedro Venezuela, Giulio Cerullo, Marcus V. O. Moutinho, Driele von Dreifus, Eva A. A. Pogna, Xianchong Miao, Minbiao Ji, Cristian Manzoni, Thonimar V. Alencar
Publikováno v: Nano research (Online) (2021): 1–8. doi:10.1007/s12274-021-3288-0
info:cnr-pdr/source/autori:Pogna E.A.A.; Miao X.; von Dreifus D.; Alencar T.V.; Moutinho M.V.O.; Venezuela P.; Manzoni C.; Ji M.; Cerullo G.; de Paula A.M./titolo:Angle-tunable intersubband photoabsorption and enhanced photobleaching in twisted bilayer graphene/doi:10.1007%2Fs12274-021-3288-0/rivista:Nano research (Online)/anno:2021/pagina_da:1/pagina_a:8/intervallo_pagine:1–8/volume
Van der Waals heterostructures obtained by artificially stacking two-dimensional crystals represent the frontier of material engineering, demonstrating properties superior to those of the starting materials. Fine control of the interlayer twist angle
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::513e9ae1c82d191f89abd4a0ae0e4bfc
http://arxiv.org/abs/2101.01499
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2
Photoinduced Intersubband Absorption and Enhanced Photobleaching in Twisted Bilayer Graphene
Autor: Driele von Dreifus, Marcus V. O. Moutinho, Ana M. de Paula, Eva A. A. Pogna, Minbiao Ji, Xianchong Miao, Giulio Cerullo, Cristian Manzoni, Thonimar V. Alencar, Pedro Venezuela, Po-Wen Chiu
Publikováno v: Optics InfoBase Conference Papers---(2021):---–---. doi:10.1109/CLEO/Europe-EQEC52157.2021.9541641
info:cnr-pdr/source/autori:Pogna E.A.A.; Miao X.; Dreifus D.V.; Alencar T.V.; Moutinho M.V.O.; Venezuela P.; Chiu P.-W.; Manzoni C.; Cerullo G.; Ji M.; De Paula A.M./titolo:Photoinduced Intersubband Absorption and Enhanced Photobleaching in Twisted Bilayer Graphene/doi:10.1109%2FCLEO%2FEurope-EQEC52157.2021.9541641/rivista:Optics InfoBase Conference Papers/anno:2021/pagina_da:---/pagina_a:---/intervallo_pagine:---–---/volume
Cleò (Roma) (2022). doi:10.1109/CLEO/Europe-EQEC52157.2021.9541641
info:cnr-pdr/source/autori:Pogna, EAA; Miao, XC; von Dreifus, D; Alencar, TV; Moutinho, MVO; Venezuela, P; Chiu, PW; Manzoni, C; Cerullo, G; Ji, MB; de Paula, AM/titolo:Photoinduced Intersubband Absorption and Enhanced Photobleaching in Twisted Bilayer Graphene/doi:10.1109%2FCLEO%2FEurope-EQEC52157.2021.9541641/rivista:Cleò (Roma)/anno:2022/pagina_da:/pagina_a:/intervallo_pagine:/volume
Van der Waals heterostructures of monolayer crystals are promising platforms for novel electronic, photonic and spintronic devices [1] - [2] . Fine control of the stacking rotation angle, i.e. the twist angle θ, allows to tailor their electronic and
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e1a437fb006e7455e6f6efc16326b718
https://publications.cnr.it/doc/462807
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3
Twisted bilayer graphene photoluminescence emission peaks at van Hove singularities
Autor: Leandro M. Malard, Driele von Dreifus, Po-Wen Chiu, Maria Gabriela Cota Moreira, M. A. Pimenta, Ana M. de Paula, Chao-Hui Yeh, G. S. N. Eliel, Thonimar V. Alencar
Publikováno v: Journal of physics. Condensed matter : an Institute of Physics journal. 30(17)
We report on photoluminescence emission imaging by femtosecond laser excitation on twisted bilayer graphene samples. The emission images are obtained by tuning the excitation laser energies in the near infrared region. We demonstrate an increase of t
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3ef472ddadbf3f21653e9dbd6a149a85
https://pubmed.ncbi.nlm.nih.gov/29533224
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4
Enhanced hot luminescence at van Hove singularities in twisted bilayer graphene
Autor: Eliel S. N. Gomes, Po-Wen Chiu, Ana M. de Paula, Thonimar V. Alencar, Marcos A. Pimenta, Driele von Dreifus
Publikováno v: 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC).
In twisted bilayer graphene (tBLG), the electronic and optical properties show interesting dependence on the interlayer rotation angle(0) with promising device applications [1,2]. The presence of the van Hove singularities in the density of states le
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b964dbbab9968660827509c4194f9915
https://doi.org/10.1109/cleoe-eqec.2017.8087699
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5
Defect-induced supercollision cooling of photoexcited carriers in graphene
Autor: Thonimar V. Alencar, Ana M. de Paula, Mychel G. Silva, Leandro M. Malard
Publikováno v: Nano letters. 14(10)
Defects play a fundamental role in the energy relaxation of hot photoexcited carriers in graphene, thus a complete understanding of these processes are vital for improving the development of graphene devices. Recently, it has been theoretically predi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::547558a1429af1338dc786f86907d862
https://pubmed.ncbi.nlm.nih.gov/25211670
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6
Observation of intense second harmonic generation from MoS2atomic crystals
Autor: Ana M. de Paula, Thonimar V. Alencar, Leandro M. Malard, Ana Paula M. Barboza, Kin Fai Mak
Publikováno v: Physical Review B. 87
Since de discovery of graphene, the family of 2-dimensional materials has attracted much recent attention. In this work, the nonlinear optical properties of few-layer MoS2 two-dimensional crystals are studied using femtosecond laser pulses. We observ
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2aec56a07d774bf954c0d6903e4d0f1b
https://doi.org/10.1103/physrevb.87.201401
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7
Imaging the crystal structure of few-layer two-dimensional crystals by optical nonlinearity
Autor: Leandro M. Malard, Ana M. de Paula, Thonimar V. Alencar, Ana Paula M. Barboza, Kin Fai Mak
Publikováno v: CLEO: 2013.
We report the observation of second harmonic generation (SHG) from odd-layer MoS 2 atomic crystal. In contrast, no SHG is observed for samples with even layer numbers due to the restoration of perfect inversion symmetry. Moreover, the SHG intensity i
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::244853ee85094271af0f870b4d6cfabc
https://doi.org/10.1364/cleo_at.2013.jw2a.05
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8
Akademický článek
Fotografando com uma câmera de pixel único
Autor: Thonimar V. Alencar, Edson J. Carvalho
Publikováno v: Revista Brasileira de Ensino de Física
Como alternativa às técnicas fotográficas que utilizam sensores com milhões de pixels, é possível usar uma câmera com apenas um pixel para registrar imagens. Para isso, é necessário iluminar a cena com um feixe luminoso espacialmente modulad
Externí odkaz: https://doaj.org/article/129a7645c7464d84b6daee131f4f6ef7
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10
Fotografando com uma câmera de pixel único
Autor: Edson J. Carvalho, Thonimar V. Alencar
Publikováno v: Revista Brasileira de Ensino de Física
Revista Brasileira de Ensino de Física, Volume: 43, Article number: e20210043, Published: 29 MAR 2021
Revista Brasileira de Ensino de Física v.43 2021
Sociedade Brasileira de Física (SBF)
instacron:SBF
Como alternativa às técnicas fotográficas que utilizam sensores com milhões de pixels, é possível usar uma câmera com apenas um pixel para registrar imagens. Para isso, é necessário iluminar a cena com um feixe luminoso espacialmente modulad
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::054d6b4ed6508fa4dcea6e3c46ff46ec
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-11172021000100712&tlng=pt
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