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pro vyhledávání: '"Capers, James R"'
We give an exact application of a recently developed, operator-based theory of wave propagation in dispersive, time-varying media. Using this theory we find that the usual symmetry of complex conjugation plus changing the sign of the frequency, requi
Externí odkaz:
http://arxiv.org/abs/2410.07247
Publikováno v:
Optics Express vol. 31 pp. 37142-37153 (2023)
We derive two methods for simultaneously controlling the resonance frequency, linewidth and multipolar nature of the resonances of radially symmetric structures. Firstly, we formulate an eigenvalue problem for a global shift in the permittivity of th
Externí odkaz:
http://arxiv.org/abs/2308.06179
Autor:
Capers, James R
Publikováno v:
Phys. Rev. Applied 20, 034064, 2023
Motivated by recent advances in the inverse design of electromagnetic materials, we develop two methods for manipulating flexural waves on thin elastic plates. Firstly, we derive a technique for determining plate pinning or mass-loading of a thin pla
Externí odkaz:
http://arxiv.org/abs/2306.05117
Publikováno v:
Phys Rev A 106 053523 (2022)
Utilising the fact that the frequency response of a material can be decomposed into the quasi-normal modes supported by the system, we present two methods to directly manipulate the complex frequencies of quasi-normal modes in the complex plane. We f
Externí odkaz:
http://arxiv.org/abs/2206.13863
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
Autor:
Capers, James R.1 jrc232@exeter.ac.uk, Boyes, Stephen J.2, Hibbins, Alastair P.1, Horsley, Simon A. R.1
Publikováno v:
Communications Physics. 9/16/2021, Vol. 4 Issue 1, p1-10. 10p.
Autor:
MacDonald, Kevin F., Staude, Isabelle, Zayats, Anatoly V., Capers, James R., Boyes, Stephen J., Hibbins, Alastair P., Horsley, Simon A. R.
Publikováno v:
Proceedings of SPIE; June 2022, Vol. 12130 Issue: 1 p121300H-121300H-9, 1091710p
Publikováno v:
Proceedings of SPIE; 4/7/2022, Vol. 12130, p121300H-121300H-9, 1p