Zobrazeno 1 - 10
of 2 381
pro vyhledávání: '"Pendry A"'
Autor:
Harwood, A. C., Vezzoli, S., Raziman, T. V., Hooper, C., Tirole, R., Wu, F., Maier, S. A., Pendry, J. B., Horsley, S. A. R., Sapienza, R.
The interaction of light with superluminally moving matter entails unconventional phenomena, from Fresnel drag to Hawking radiation and to light amplification. While relativity makes these effects inaccessible using objects in motion, synthetic motio
Externí odkaz:
http://arxiv.org/abs/2407.10809
Autor:
Pendry, J. B.
Experiments on Indium Tin Oxide (ITO) have revealed that a relatively broad 200THz pump pulse, roughly 30 cycles in width, can switch ITO from a transparent to a reflecting state within one or two optical cycles, a few Femtoseconds. So far the rapid
Externí odkaz:
http://arxiv.org/abs/2407.08391
We investigate the frictional force arising from quantum fluctuations when two dissipative metallic plates are set in a shear motion. While early studies showed that the electromagnetic fields in the quantum friction setup reach nonequilibrium steady
Externí odkaz:
http://arxiv.org/abs/2402.09074
Autor:
Serra, João C., Galiffi, Emanuele, Huidobro, Paloma A., Pendry, John B., Silveirinha, Mário G.
Photonic systems with time-varying modulations have attracted considerable attention as they allow for the design of non-reciprocal devices without the need for an external magnetic bias. Unlike time-invariant systems, such modulations couple modes w
Externí odkaz:
http://arxiv.org/abs/2402.08507
Autor:
Horsley, S. A. R., Pendry, J. B.
We show that a grating amplitude stationary in space but oscillating in time can be accurately modelled as a set of independent gratings travelling in opposite directions, interacting almost exclusively with waves travelling in the same direction. Th
Externí odkaz:
http://arxiv.org/abs/2402.07486
Autor:
Tirole, Romain, Vezzoli, Stefano, Saxena, Dhruv, Yang, Shu, Raziman, T. V., Galiffi, Emanuele, Maier, Stefan A., Pendry, John B., Sapienza, Riccardo
Time-varying metamaterials rely on large and fast changes of the linear permittivity. Beyond the linear terms, however, the effect of a non-perturbative modulation of the medium on harmonic generation and the associated nonlinear susceptibilities rem
Externí odkaz:
http://arxiv.org/abs/2401.05536
Autor:
Romain Tirole, Stefano Vezzoli, Dhruv Saxena, Shu Yang, T. V. Raziman, Emanuele Galiffi, Stefan A. Maier, John B. Pendry, Riccardo Sapienza
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-8 (2024)
Abstract Time-varying metamaterials rely on large and fast changes of the linear permittivity. Beyond the linear terms, however, the effect of a non-perturbative modulation of the medium on harmonic generation remains largely unexplored. In this work
Externí odkaz:
https://doaj.org/article/93713b4baca545d3aeab338787561355
Autor:
Guan, Fuxin, Zeng, Kebo, Nie, Zhaoyu, Guo, Xiangdong, Ma, Shaojie, Dai, Qing, Pendry, John B., Zhang, Xiang, Zhang, Shuang
Superlenses made of plasmonic materials and metamaterials have been exploited to image features of sub-diffractional scale. However, their intrinsic losses impose a serious restriction on the imaging resolution, which is a long-standing problem that
Externí odkaz:
http://arxiv.org/abs/2303.16081
Autor:
Yue Zhao, Ya-Ping Chen, Rui-Zhu Bai, Colin A. Pendry, Alexander P. Sukhorukov, Chun-Lei Xiang
Publikováno v:
PhytoKeys, Vol 246, Iss , Pp 15-26 (2024)
Phlomoides bomiensis, a new species in Bomi County, Xizang, China, was described and illustrated. In addition, Phlomoides longidentata, previously only known from Nepal and Bhutan, is newly recorded from Dingri County, Xizang, China. The phylogenetic
Externí odkaz:
https://doaj.org/article/457cb8eed0bc4883aa97d226bcef3c13
Autor:
Horsley, Simon A. R., Pendry, John B.
Diffraction gratings synthetically moving at trans-luminal velocities contain points where wave and grating velocities are equal. We show these points can be understood as a series of optical event horizons where wave energy can be trapped and amplif
Externí odkaz:
http://arxiv.org/abs/2302.04066