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pro vyhledávání: '"Plum, Eric"'
Optical devices with metastable states controlled with light (optical flip-flops) are needed in data storage, signal processing and displays. Although non-volatile optical memory relying on structural phase transitions in chalcogenide glasses has bee
Externí odkaz:
http://arxiv.org/abs/2112.11087
Autor:
Xu, Jie, Plum, Eric
Optical nonlinearity depends on symmetry and symmetries vanish in the presence of defects. Vaccancy defects in centrosymmetric crystals and thin films are a well-known source of even-order optical nonlinearity, e.g. causing second harmonic generation
Externí odkaz:
http://arxiv.org/abs/2109.10308
Optical nonlinearities of matter are often associated with the response of individual atoms. Here, using a toy oscillator model, we show that in the confined geometry of a two-dimensional dielectric nanoparticle a collective nonlinear response of the
Externí odkaz:
http://arxiv.org/abs/2109.10284
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Akademický článek
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Autor:
Xomalis, Angelos, Demirtzioglou, Iosif, Plum, Eric, Jung, Yongmin, Nalla, Venkatram, Lacava, Cosimo, MacDonald, Kevin F., Petropoulos, Periklis, Richardson, David, Zheludev, Nikolay I.
Publikováno v:
Nature Communications 9, 182 (2018)
Recently, coherent control of the optical response of thin films of matter in standing waves has attracted considerable attention, ranging from applications in excitation-selective spectroscopy and nonlinear optics to demonstrations of all-optical im
Externí odkaz:
http://arxiv.org/abs/1709.05357
Publikováno v:
Scientific Reports 6, 37109 (2016)
Effectively continuous control over propagation of a beam of light requires light modulation with pixelation that is smaller than the optical wavelength. Here we propose a spatial intensity modulator with sub-wavelength resolution in one dimension. T
Externí odkaz:
http://arxiv.org/abs/1610.06791
Autor:
Plum, Eric
Electromagnetic metamaterials are artificial media that derive novel properties from periodic structuring on the sub-wavelength scale. Here, the consequences of two-dimensional (2D) and three-dimensional (3D) chirality for the electromagnetic propert
Externí odkaz:
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.515822
From the demonstration of saturable absorption by Vavilow and Levshin in 1926, and with invention of the laser, unavailability of strongly nonlinear materials was a key obstacle for developing optical signal processing, in particular in transparent t
Externí odkaz:
http://arxiv.org/abs/1506.05852
Publikováno v:
Sci. Rep. 5(17), 8977 (2015)
The future fibre optic communications network will rely on photons as carriers of information, which may be stored in intensity, polarization or phase of light. However, processing of such optical information usually relies on electronics. Aiming to
Externí odkaz:
http://arxiv.org/abs/1312.0414