Zobrazeno 1 - 10
of 1 317
pro vyhledávání: '"Nicolae C"'
Autor:
Ji Tong Wang, Pavel Tonkaev, Kirill Koshelev, Fangxing Lai, Sergey Kruk, Qinghai Song, Yuri Kivshar, Nicolae C. Panoiu
Publikováno v:
Opto-Electronic Advances, Vol 7, Iss 5, Pp 1-15 (2024)
Nonlinear dielectric metasurfaces provide a promising approach to control and manipulate frequency conversion optical processes at the nanoscale, thus facilitating both advances in fundamental research and the development of new practical application
Externí odkaz:
https://doaj.org/article/8d8bda3b838e47e6be5271be7c6df4be
Publikováno v:
Crystals, Vol 14, Iss 11, p 993 (2024)
This study investigates the effects of aluminum and nitrogen content on the microstructure, mechanical properties, and tribological performance of high-entropy coatings based on (TiCrAlxNbY)Ny systems. Using a hybrid magnetron sputtering technique, b
Externí odkaz:
https://doaj.org/article/ea59c748ec734d70853749188663d39c
Publikováno v:
Quantum Frontiers, Vol 2, Iss 1, Pp 1-9 (2023)
Abstract We study the nonlinear optical properties of heterojunctions made of graphene nanoribbons (GNRs) consisting of two segments with either the same or different topological properties. By utilizing a quantum mechanical approach that incorporate
Externí odkaz:
https://doaj.org/article/88e6e11ac3da4de8b484e7ec2fe35f74
Autor:
Nicolae C. Zoita, Mihaela Dinu, Anca C. Parau, Ainara López-Ortega, Iulian Pana, Cristiana Eugenia Ana Grigorescu, Mikel Mondragon, Arcadie Sobetkii, Xanti Almandoz, Juan Carlos Rodriguez, Alaa Abou Harb, Adrian E. Kiss, Jose Manuel Izurrategi
Publikováno v:
Crystals, Vol 13, Iss 11, p 1565 (2023)
Multi-component high-entropy (TiCrAl0.5NbCu)CxNy coatings targeting applications requiring medium-to-high friction and wear-resistant surfaces were fabricated through the co-sputtering of elemental targets in an Ar + CH4 + N2 reactive atmosphere usin
Externí odkaz:
https://doaj.org/article/d1744760194047ac81f3e8f250f3c46b
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-7 (2021)
The development of fast and dynamic topological photonic platforms is an ongoing challenge. Here, the authors demonstrate a reprogrammable plasmonic topological insulator in which ultrafast electric switches allow for nanosecond-level switching time
Externí odkaz:
https://doaj.org/article/f25a230cd29c48829630e60b435f111b
Publikováno v:
APL Photonics, Vol 3, Iss 1, Pp 016102-016102-8 (2018)
We propose a distant-neighbor quantum-mechanical (DNQM) approach to study the linear and nonlinear optical properties of graphene nanoflakes (GNFs). In contrast to the widely used tight-binding description of the electronic states that considers only
Externí odkaz:
https://doaj.org/article/471df21f7d504a63a351011bc2a12667
We study the nonlinear optical properties of heterojunctions made of graphene nanoribbons (GNRs) consisting of two segments with either the same or different topological properties. By utilizing a quantum mechanical approach that incorporates distant
Externí odkaz:
http://arxiv.org/abs/2304.08794
We demonstrate that the influence of Kerr effect on valley-Hall topological transport in graphene metasurfaces can be used to implement an all-optical switch. In particular, by taking advantage of the large Kerr coefficient of graphene, the index of
Externí odkaz:
http://arxiv.org/abs/2301.01332
We derive the $\mathcal{T}$-matrix formalism tailored for the numerical analysis of second-harmonic (SH) generation from arbitrarily-shaped particles made of centrosymmetric optical materials. First, the transfer matrix of a single particle is comput
Externí odkaz:
http://arxiv.org/abs/2208.13977