Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Armijo, Julien"'
Autor:
Armijo, Julien
Cette thèse présente la conception et l'implémentation d'une nouvelle génération de puces à atomes, ouvrant de nouvelles perspectives expérimentales dans des micropièges magnétiques très anisotropes. Les propriétés thermiques des puces en
Externí odkaz:
http://www.theses.fr/2011PA112057/document
Autor:
Armijo, Julien, Allio, Raphaël
We report the first observation of coherent back-scattering (CBS) of light in a transverse photonic disorder. The CBS peak is recorded in the far-field, at a fixed propagation time set by our crystal length, and displays a contrast approaching the id
Externí odkaz:
http://arxiv.org/abs/1504.07340
Autor:
Armijo, Julien, Philibert, Cédric
Publikováno v:
In International Journal of Hydrogen Energy 13 January 2020 45(3):1541-1558
Autor:
Allio, Raphaël, Guzmán-Silva, Diego, Cantillano, Camilo, Morales-Inostroza, Luis, Lopez-Gonzalez, Dany, Etcheverry, Sebastián, Vicencio, Rodrigo A., Armijo, Julien
Publikováno v:
Journal of Optics 17, 2, 025101 (2015)
We study experimentally the writing of one- and two-dimensional photorefractive lattices, focusing on the often overlooked transient regime. Our measurements agree well with theory, in particular concerning the ratio of the drift to diffusion terms.
Externí odkaz:
http://arxiv.org/abs/1409.3885
Publikováno v:
Optics Express, 22, 17, 20574-20587 (2014)
We demonstrate a method to experimentally calibrate the refractive index modulation in photorefractive lattices, a task rarely addressed that is crucial for quantitative comparisons of theories with experiments. We consider the linear propagation of
Externí odkaz:
http://arxiv.org/abs/1311.6520
Autor:
Boguslawski, Martin, Brake, Sebastian, Armijo, Julien, Diebel, Falko, Rose, Patrick, Denz, Cornelia
Publikováno v:
Optics Express 21 (2013) 31713-31724
We present a method to demonstrate Anderson localization in an optically induced randomized potential. By usage of computer controlled spatial light modulators, we are able to implement fully randomized nondiffracting beams of variable structural siz
Externí odkaz:
http://arxiv.org/abs/1310.0273
Autor:
Armijo, Julien
Publikováno v:
Phys. Rev. Lett. 108, 225306 (2012)
We report the first direct observation of collective quantum fluctuations in a continuous field. Shot-to-shot atom number fluctuations in small sub-volumes of a weakly interacting ultracold atomic 1D cloud are studied using \textit{in situ} absorptio
Externí odkaz:
http://arxiv.org/abs/1112.4199
Autor:
Armijo, Julien, Barnard, John J.
Publikováno v:
Phys. Rev. E 83, 051507 (2011)
We propose a simple, self-consistent kinetic model for the evolution of a mixture of droplets and vapor expanding adiabatically in vacuum after rapid, almost isochoric heating. We study the evolution of the two-phase fluid at intermediate times betwe
Externí odkaz:
http://arxiv.org/abs/1105.6121
Publikováno v:
Physical Review Letters 106 (2011) 230405
We report on local measurements of atom number fluctuations in slices of a single 1D Bose gas with repulsive interactions. For weakly interacting gases, the fluctuations are super-Poissonian at intermediate atomic densities and become sub-Poissonian
Externí odkaz:
http://arxiv.org/abs/1103.3028
Publikováno v:
Physical Review A: Atomic, Molecular and Optical Physics (2011) vol. 83, p. 021605
By measuring the density fluctuations in a highly elongated weakly interacting Bose gas, we observe and quantify the transition from the ideal gas to a quasi-condensate regime throughout the dimensional crossover from a purely 1D to an almost 3D gas.
Externí odkaz:
http://arxiv.org/abs/1011.3631