Zobrazeno 1 - 10
of 1 690
pro vyhledávání: '"A P Hibbins"'
Autor:
Arnold, K. O., Hooper, C., Smith, J., Clow, N., Hibbins, A. P., Sambles, J. R., Horsley, S. A. R.
We show that a large family of tensorial metasurfaces can be found that perform an identical wave transformation, showing that even when the conditions of reciprocity and passivity are imposed, there still remain many solutions to the design problem.
Externí odkaz:
http://arxiv.org/abs/2407.20880
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-7 (2024)
Abstract We develop a method for the extraction of the surface impedance tensor of a generic reflective metasurface using an analytic relation between the tensorial surface impedance and the four polarisation-dependent reflection coefficients. We app
Externí odkaz:
https://doaj.org/article/03a72789c8b54a2ebd65742bd91dd2eb
Autor:
Capers, J. R., Stanfield, L. D., Sambles, J. R., Boyes, S. J., Powell, A. W., Hibbins, A. P., Horsley, S. A. R.
Next generation microwave communications systems face several challenges, particularly from congested communications frequencies and complex propagation environments. Taking inspiration from the Yagi-Uda antenna, we present, and experimentally test,
Externí odkaz:
http://arxiv.org/abs/2306.17528
We design, simulate, and experimentally characterize an acoustic metasurface comprising of a 1D array of open, sound-hard, cavities, modulated with beyond-nearest-neighbor (BNN) couplings in the form of additional connecting cavities embedded beneath
Externí odkaz:
http://arxiv.org/abs/2212.06583
We experimentally demonstrate a Purcell effect-based design technique for improved impedance matching, and thus enhanced radiation efficiency from a small microwave emitter. Using an iterative process centred on comparing the phase of the radiated fi
Externí odkaz:
http://arxiv.org/abs/2209.13670
We design, simulate and experimentally characterise a reconfigurable elastic metamaterial with beyond-nearest-neighbour (BNN) coupling. The structure is composed from the popular British model construction system, Meccano$^{\text{TM}}$. The Meccano$^
Externí odkaz:
http://arxiv.org/abs/2206.10487
Publikováno v:
Proc. SPIE 12130, Metamaterials XIII, 121300H (24 May 2022)
Designer manipulation of light at the nanoscale is key to several next-generation technologies, from sensing to optical computing. One way to manipulate light is to design a material structured at the sub-wavelength scale, a metamaterial, to have som
Externí odkaz:
http://arxiv.org/abs/2206.04390
Publikováno v:
New Journal of Physics 24 113035, 2022
The ability to design passive structures that perform different operations on different electromagnetic fields is key to many technologies, from beam-steering to optical computing. While many techniques have been developed to optimise structure to ac
Externí odkaz:
http://arxiv.org/abs/2204.11605
Publikováno v:
Law Institute Journal: Official Organ of The Law Institute of Victoria; Jan/Feb2024, Vol. 98 Issue 1/2, p11-12, 2p
Autor:
Chaplain, Gregory J., Craster, Richard V., Cole, Nick, Hibbins, Alastair P., Starkey, Timothy A.
Scholte modes that are localized between a submerged axisymmetric-structured elastic plate and surrounding fluid can undergo mode conversion via Umklapp diffraction into radiative modes; this radiative response is verified by experiments that show fo
Externí odkaz:
http://arxiv.org/abs/2110.05152