Zobrazeno 1 - 10
of 284
pro vyhledávání: '"Kockaert, P"'
2D materials offer a large variety of optical properties, from transparency to plasmonic excitation. They can be structured and combined to form heterostructures that expand the realm of possibility to manipulate light interactions at the nanoscale.
Externí odkaz:
http://arxiv.org/abs/2309.14899
Autor:
Jolly, Spencer W., Kockaert, Pascal
Guided wave optics, including most prominently fiber optics and integrated photonics, very often considers only one or very few spatial modes of the waveguides. Despite being known and utilized for decades, multi-mode guided wave optics is currently
Externí odkaz:
http://arxiv.org/abs/2308.14445
Bidimensional materials are ideally viewed as having no thickness, as their name suggests. Their optical response have been previously modelled by a purely bidimensional surface current or by a very thin film with some contradictory results. The adve
Externí odkaz:
http://arxiv.org/abs/2207.11083
Publikováno v:
Phys. Rev. B 98, 125419 (2018)
The electromagnetic properties of 2D materials are modeled either as single sheets with a surface susceptibility or conductivity, or as thin films of finite thickness with an effective permittivity. Their intrinsic anisotropy, however, has to be full
Externí odkaz:
http://arxiv.org/abs/1807.00405
Autor:
Dremetsika, Evdokia, Kockaert, Pascal
Publikováno v:
Phys. Rev. B 96, 235422 (2017)
Using an enhanced optically heterodyned optical Kerr effect method and a theoretical description of the interactions between an optical beam, a single layer of graphene, and its substrate, we provide experimental answers to questions raised by theore
Externí odkaz:
http://arxiv.org/abs/1707.09507
Autor:
Dremetsika, Evdokia, Dlubak, Bruno, Gorza, Simon-Pierre, Ciret, Charles, Martin, Marie-Blandine, Hofmann, Stephan, Seneor, Pierre, Dolfi, Daniel, Massar, Serge, Emplit, Philippe, Kockaert, Pascal
Publikováno v:
Opt. Lett. 41, 3281-3284 (2016)
By means of the ultrafast optical Kerr effect method coupled to optical heterodyne detection (OHD-OKE), we characterize the third order nonlinear response of graphene at telecom wavelength, and compare it to experimental values obtained by the Z-scan
Externí odkaz:
http://arxiv.org/abs/1607.00911
Autor:
Leo, François, Coen, Stéphane, Kockaert, Pascal, Emplit, Philippe, Haelterman, Marc, Mussot, Arnaud, Taki, Majid
Publikováno v:
Phys. Lett. A, 379 (34), pp. 1934-1937 (2015)
It is analytically shown that symmetry breaking, in dissipative systems, affects the nature of the bifurcation at onset of instability resulting in transitions from super to subcritical bifurcations. In the case of a nonlinear fiber cavity, we have d
Externí odkaz:
http://arxiv.org/abs/1405.3859
Autor:
Leo, François, Gorza, Simon-Pierre, Safioui, Jassem, Kockaert, Pascal, Coen, Stéphane, Dave, Utsav, Kuyken, Bart, Roelkens, Gunther
We experimentally and numerically study dispersive wave emission, soliton fission and supercontinuum generation in a silicon wire at telecommunication wavelengths. Through dispersion engineering, we experimentally confirm a previously reported numeri
Externí odkaz:
http://arxiv.org/abs/1401.5713
Autor:
Zhang, Han, Virally, Stephane, Bao, Qiaoliang, Loh, Kian Ping, Massar, Serge, Godbout, Nicolas, Kockaert, Pascal
Publikováno v:
Optics Letters Vol. 37, Issue 11, pp. 1856-1858 (2012)
Under strong laser illumination, few-layer graphene exhibits both a transmittance increase due to saturable absorption and a nonlinear phase shift. Here, we unambiguously distinguish these two nonlinear optical effects and identify both real and imag
Externí odkaz:
http://arxiv.org/abs/1203.5527
Autor:
Kockaert, Pascal, Tassin, Philippe, Van der Sande, Guy, Veretennicoff, Irina, Tlidi, Mustapha
Publikováno v:
Phys. Rev. A 74, 033822 (2006)
We study a ring cavity filled with a slab of a right-handed material and a slab of a left-handed material. Both layers are assumed to be nonlinear Kerr media. First, we derive a model for the propagation of light in a left-handed material. By constru
Externí odkaz:
http://arxiv.org/abs/1003.0584