Zobrazeno 1 - 10
of 205
pro vyhledávání: '"Sauvan C"'
The scattering of electromagnetic waves by resonant systems is determined by the excitation of quasinormal modes (QNMs), i.e., the eigenmodes of the system. This Review addresses three fundamental concepts in relation with the representation of the s
Externí odkaz:
http://arxiv.org/abs/2112.08103
Publikováno v:
Phys. Rev. Lett. 124, 073403 (2020)
We study theoretically the scattering of light by an ensemble of $N$ resonant atoms in a sub-wavelength volume. We consider the low intensity regime so that each atom responds linearly to the field. While $N$ non-interacting atoms would scatter $N^2$
Externí odkaz:
http://arxiv.org/abs/1907.02993
Autor:
Lalanne, P., Yan, W., Gras, A., Sauvan, C., Hugonin, J. -P., Besbes, M., Demesy, G., Truong, M. D., Gralak, B., Zolla, F., Nicolet, A., Binkowski, F., Zschiedrich, L., Burger, S., Zimmerling, J., Remis, R., Urbach, P., Liu, H. T., Weiss, T.
Publikováno v:
J. Opt. Soc. Am. A 36, 686 (2019)
Optical resonators are widely used in modern photonics. Their spectral response and temporal dynamics are fundamentally driven by their natural resonances, the so-called quasinormal modes (QNMs), with complex frequencies. For optical resonators made
Externí odkaz:
http://arxiv.org/abs/1811.11751
Publikováno v:
Phys. Rev. A 96, 013825 (2017)
We study theoretically the concept of homogenization in optics using an ensemble of randomly distributed resonant stationary atoms with density $\rho$. The ensemble is dense enough for the usual condition for homogenization, viz. $\rho\lambda^3 \gg 1
Externí odkaz:
http://arxiv.org/abs/1706.01235
Autor:
Jennewein, S., Besbes, M., Schilder, N. J., Jenkins, S. D., Sauvan, C., Ruostekoski, J., Greffet, J. -J., Sortais, Y. R. P., Browaeys, A.
Publikováno v:
Phys. Rev. Lett. 116, 233601 (2016)
We measure the coherent scattering of light by a cloud of laser-cooled atoms with a size comparable to the wavelength of light. By interfering a laser beam tuned near an atomic resonance with the field scattered by the atoms we observe a resonance wi
Externí odkaz:
http://arxiv.org/abs/1510.08041
Publikováno v:
Phys. Rev. Lett 110, 237401 (2013)
We provide a self-consistent electromagnetic theory of the coupling between dipole emitters and dissipative nanoresonators. The theory that relies on the concept of quasi-normal modes with complex frequencies provides an accurate closed-form expressi
Externí odkaz:
http://arxiv.org/abs/1304.8110
Publikováno v:
Physical Review Letters 107, 043903 (2011)
We theoretically study fishnet metamaterials at optical frequencies. In contrast to earlier works, we provide a microscopic description by tracking the transversal and longitudinal flows of energy through the fishnet mesh composed of intersecting sub
Externí odkaz:
http://arxiv.org/abs/1105.3341
Publikováno v:
Appl. Phys. Lett. 95(21), 211101 (2009)
Different mirror geometries in two-dimensional photonic crystal slabs are studied with fully-vectorial calculations. We compare their optical properties and, in particular, we show that, for heterostructure mirrors, the penetration length associated
Externí odkaz:
http://arxiv.org/abs/0905.4449
Autor:
Barbara, A., Perchec, J. Le, Quemerais, P., Lopez-Rios, T., Collin, S., Sauvan, C., Pelouard, J-L.
Light localization on commensurate arrangements of metallic sub-wavelength grooves is studied. We theoretically show that as the degree of commensuration tends to an irrational number new light localization states are produced. These have properties
Externí odkaz:
http://arxiv.org/abs/0706.3843
Publikováno v:
Phys. Rev. B 71, 165118 (2005)
Physical mechanisms involved in the light confinement in photonic crystal slab microcavities are investigated. We first present a full three-dimensional numerical study of these microcavities. Then, to gain physical insight into the confinement mecha
Externí odkaz:
http://arxiv.org/abs/cond-mat/0502664