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pro vyhledávání: '"Koya, Alemayehu Nana"'
Understanding the spectral and temporal dynamics of charge transfer plasmon resonances that emerge in conductively connected plasmonic nanoparticles is crucial for exploiting their potentials for enhanced infrared spectroscopy and optical computing.
Externí odkaz:
http://arxiv.org/abs/2406.17996
In this work, the plasmonic properties of nanoparticle dimers with optical responses over a wide spectral range have been investigated by varying the inter-particle gap, dimer geometry, gap morphology, nanoparticle composition, and refractive index o
Externí odkaz:
http://arxiv.org/abs/2404.19184
Autor:
Koya, Alemayehu Nana, Zhu, Xiangchao, Ohannesian, Nareg, Yanik, A. Ali, Alabastri, Alessandro, Zaccaria, Remo Proietti, Krahne, Roman, Shih, Wei-Chuan, Garoli, Denis
The field of plasmonics is capable of enabling interesting applications in the different wavelength ranges, spanning from the ultraviolet up to the infrared. The choice of plasmonic material and how the material is nanostructured have significant imp
Externí odkaz:
http://arxiv.org/abs/2312.02609
Controlled trapping of light absorbing nanoparticles with low-power optical tweezers is crucial for remote manipulation of small objects. This study takes advantage of the synergetic effects of tightly confined local fields of plasmonic nanoaperture,
Externí odkaz:
http://arxiv.org/abs/2310.05214
Compared to single nanoparticles, strongly coupled plasmonic nanoparticles provide attractive advantages owing to their ability to exhibit multiple resonances with unique spectral features and higher local field intensity. These enhanced plasmonic pr
Externí odkaz:
http://arxiv.org/abs/2304.09538
Autor:
Koya, Alemayehu Nana, Li, Wei
Charge transfer plasmon (CTP) modes arise when metallic nanoparticles are connected by a conductive junction. These ultatunable plasmonic modes can be actively tuned and broadly modulated from visible to IR regimes, implying their potentials for appl
Externí odkaz:
http://arxiv.org/abs/2303.06901
Autor:
Koya, Alemayehu Nana, Romanelli, Marco, Kuttruff, Joel, Henriksson, Nils, Stefancu, Andrei, Grinblat, Gustavo, De Andres, Aitor, Schnur, Fritz, Vanzan, Mirko, Marsili, Margherita, Rahaman, Mahfujur, Rodríguez, Alba Viejo, Tapani, Tilaike, Lin, Haifeng, Dana, Bereket Dalga, Lin, Jingquan, Barbillon, Grégory, Zaccaria, Remo Proietti, Brida, Daniele, Jariwala, Deep, Veisz, László, Cortes, Emiliano, Corni, Stefano, Garoli, Denis, Maccaferri, Nicolò
In the past twenty years, we have reached a broad understanding of many light-driven phenomena in nanoscale systems. The temporal dynamics of the excited states are instead quite challenging to explore, and, at the same time, crucial to study for und
Externí odkaz:
http://arxiv.org/abs/2211.08241
Autor:
Cunha, Joao, Guo, Tian-Long, Koya, Alemayehu Nana, Toma, Andrea, Prato, Mirko, Della Valle, Giuseppe, Alabastri, Alessandro, Zaccaria, Remo Proietti
Plasmonic structures are renowned for their capability to efficiently convert light into heat at the nanoscale. However, despite the possibility to generate deep sub-wavelength electromagnetic hot spots, the formation of extremely localized thermal h
Externí odkaz:
http://arxiv.org/abs/2005.14574
Akademický článek
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Publikováno v:
In Physica B: Physics of Condensed Matter 15 April 2022 631
