Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Muhammad Shemyal Nisar"'
Autor:
Shahid Iqbal, Ahsan Noor, Naeem Ullah, Yasir Saifullah, Shehzad Ahmed, Muhammad Shemyal Nisar, Sai-Wai Wong
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-15 (2024)
Abstract Independent control of electromagnetic (EM) waves by metasurfaces for multiple tasks are highly desired and is the recent hot topic of research. In this work we contribute a polarization insensitive frequency multiplexed 2-bit coding metasur
Externí odkaz:
https://doaj.org/article/be6c06d04a48445f877963c618b74ad2
Publikováno v:
Results in Physics, Vol 51, Iss , Pp 106648- (2023)
Numerical simulations are undertaken to investigate the flow of fluids and heat transfer through a nanofluid inside a hexagonal enclosure fitted with a square cavity and characterized by buoyancy-driven fluid motion. A periodic hot temperature Th and
Externí odkaz:
https://doaj.org/article/da929b8da70b4820b3a93a76f10d4fd0
Publikováno v:
Results in Physics, Vol 48, Iss , Pp 106440- (2023)
Coding metasurfaces have found many applications in free space optics, but have not been used for integrated photonic applications. This can partly be attributed to the lack of implements to usefully implement such a framework in practice. The advent
Externí odkaz:
https://doaj.org/article/0df9a9f88a4545bb9b32a28a381fb37f
Autor:
Huayi Sheng, Muhammad Shemyal Nisar
Publikováno v:
Micromachines, Vol 15, Iss 1, p 50 (2023)
The slowdown of Moore’s law and the existence of the “von Neumann bottleneck” has led to electronic-based computing systems under von Neumann’s architecture being unable to meet the fast-growing demand for artificial intelligence computing. H
Externí odkaz:
https://doaj.org/article/edfd33affa3344a69089d0955ca50971
Publikováno v:
Photonic Sensors, Vol 10, Iss 4, Pp 364-374 (2020)
Abstract Zero-mode waveguides have become important tools for the detection of single molecules. There are still, however, serious challenges because large molecules need to be packed into nano-holes. To circumvent this problem, we investigate and nu
Externí odkaz:
https://doaj.org/article/d8ba9f98f3d34b9d8a4b2affdc6a8344
Publikováno v:
Micromachines, Vol 13, Iss 12, p 2185 (2022)
Metasurfaces are useful subwavelength structures that can be engineered to achieve useful functionality. While most metasurfaces are passive devices, Phase Change Materials can be utilized to make active metasurfaces that can have numerous applicatio
Externí odkaz:
https://doaj.org/article/fba377e2201343c6a1da1de25bbd6a2a
Publikováno v:
Photonics, Vol 8, Iss 6, p 205 (2021)
Phase change materials present a unique type of materials that drastically change their electrical and optical properties on the introduction of an external electrical or optical stimulus. Although these materials have been around for some decades, t
Externí odkaz:
https://doaj.org/article/af07781590174eb79ed4297a76aa9453
Publikováno v:
IEEE Photonics Journal, Vol 9, Iss 1, Pp 1-8 (2017)
We report simulation and fabrication of a grating coupler for coupling of light between an on-chip lithium niobate ridge waveguide and an optical fiber. A grating coupler with an insertion loss of less than 10 dB for C-band frequencies (1530-1565 nm)
Externí odkaz:
https://doaj.org/article/7a4e7ae70947404bab8622f47dc1fdd4
Publikováno v:
Sensors, Vol 20, Iss 3, p 671 (2020)
The influence of heat generation on the conventional process of LSPR based sensing has not been explored thus far. Therefore, a need exists to draw attention toward the heat generation issue during LSPR sensing as it may affect the refractive index o
Externí odkaz:
https://doaj.org/article/47a0112333b34642854f3fa02e139ecc
Autor:
Siyu Kang, Muhammad Shemyal Nisar, Yu Lu, Ning Chang, Yan Huang, Haibin Ni, Sergey M. Novikov, Yi Wang, Qiannan Cui, Xiangwei Zhao
Publikováno v:
Small methods.
Plasmonic tweezers are an emerging research topic because of their low input power and wide operating range from homogeneous particles to complex biological objects. But it is still challenging for plasmonic tweezers to trap or manipulate objects of