Zobrazeno 1 - 10
of 141
pro vyhledávání: '"Ndao Abdoulaye"'
Publikováno v:
Nanophotonics, Vol 13, Iss 21, Pp 3963-3983 (2024)
Plasmonic nanoantennas with suitable far-field characteristics are of huge interest for utilization in optical wireless links, inter-/intrachip communications, LiDARs, and photonic integrated circuits due to their exceptional modal confinement. Despi
Externí odkaz:
https://doaj.org/article/fb331dfbe96d4f7abf8fd780d4d58d01
Autor:
Schwarze, Christopher R., Simon, David S., Manni, Anthony D., Ndao, Abdoulaye, Sergienko, Alexander V.
Publikováno v:
Opt. Express 32, 34116-34127 (2024)
We present a low-resource and robust optical implementation of the four-dimensional Grover coin, a four-port linear-optical scatterer that augments the low dimensionality of a regular beam-splitter. While prior realizations of the Grover coin require
Externí odkaz:
http://arxiv.org/abs/2409.04303
Autor:
Alquliah, Amged, Sun, Jay Ke-Chieh, Mekhiel, Christopher, Gao, Chengkuan, Gulinihali, Guli, Fainman, Yeshaiahu, Ndao, Abdoulaye
Photonic integrated circuits (PICs) demand tailored spectral responses for various applications. On-chip Bragg filters offer a promising solution, yet their static nature hampers scalability. Current tunable filters rely on volatile switching mechani
Externí odkaz:
http://arxiv.org/abs/2408.10110
Publikováno v:
J. Opt. Soc. Amer. B Vol. 41, No. 8, p. 1847, August 2024
The Su-Schrieffer-Heeger (SSH) system is a popular model for exploring topological insulators and topological phases in one dimension. Recent interest in exceptional points has led to re-examination of non-Hermitian generalizations of many physical m
Externí odkaz:
http://arxiv.org/abs/2408.00879
Plasmonic nanoantennas with suitable far-field characteristics are of huge interest for utilization in optical wireless links, inter-/intra-chip communications, LiDARs, and photonic integrated circuits due to their exceptional modal confinement. Desp
Externí odkaz:
http://arxiv.org/abs/2407.03607
Autor:
Ndao Abdoulaye, Hsu Liyi, Cai Wei, Ha Jeongho, Park Junhee, Contractor Rushin, Lo Yuhwa, Kanté Boubacar
Publikováno v:
Nanophotonics, Vol 9, Iss 5, Pp 1081-1086 (2020)
One of the key challenges in biology is to understand how individual cells process information and respond to perturbations. However, most of the existing single-cell analysis methods can only provide a glimpse of cell properties at specific time poi
Externí odkaz:
https://doaj.org/article/ee5090a887e34a219521d6f5cdc62c76
Autor:
Schwarze, Christopher R., Simon, David S., Manni, Anthony D., Ndao, Abdoulaye, Sergienko, Alexander V.
Publikováno v:
J. Opt. Soc. Am. B 41, 1304-1316 (2024)
We present a finite-element approach for computing the aggregate scattering matrix of a network of linear coherent scatterers. These might be optical scatterers or more general scattering coins studied in quantum walk theory. While techniques exist f
Externí odkaz:
http://arxiv.org/abs/2405.08884
Publikováno v:
Physical Review A 109, 053508 (2024)
We combine lossless, phase-only transformations with fully-transmitting linear-optical scatterers to define the principle of linear-optical phase amplification. This enables a physical phase shift $\phi$ to be nonlinearly mapped to a new space $\gamm
Externí odkaz:
http://arxiv.org/abs/2405.03868
Subwavelength planar structured interfaces, also known as metasurfaces, are ultra-thin optical elements modulating the amplitude, phase, and polarization of incident light using nanostructures called meta-atoms. The optical properties of such metasur
Externí odkaz:
http://arxiv.org/abs/2301.01160
In this paper, we proposed and numerically demonstrated a giant enhancement up to 108 in both forward and backward propagation of the Second Harmonic Generation by combining the high-quality factor cavities of the Bound States in the Continuum and th
Externí odkaz:
http://arxiv.org/abs/2206.11405