62 citations · 110 across the 12 of their papers we have counts for
12 papers
Sub-Doppler spectroscopy of Rydberg atoms via velocity selection memory in a hot vapor cell
Esther Butery, Biplab Dutta, Stephany Santos +4
We study resonance redistribution mechanisms inside a hot vapor cell. This is achieved by pumping atoms on the first cesium resonance, 6S1/2-->6P1/2, and subsequently probing the v…
Nonlinear system synchronization to sum signals of multiple chaotic systems
Robson Vieira, Weliton S. Martins, Sergio Barreiro +3
Coupling of chaotic oscillators has evidenced conditions where synchronization is possible, therefore a nonlinear system can be driven to a particular state through input from a si…
Coverage threshold for laser-induced lithography
Weliton S. Martins, Marcos Oriá, Thierry Passerat de Silans +1
Recent experimental observations of laser-induced adsorption at the interface between an alkali vapor and a dielectric surface have demonstrated the possibility of growing metallic…
Anderson localization of light: Strong dependence with incident angle - Supplementary Information
Ernesto Jimenez-Villar, M. C. S. Xavier, Valdeci Mestre +4
This paper studies the transport of light for different incidence angles in a strongly disordered optical medium composed by core-shell nanoparticles (TiO2@Silica) suspended in eth…
Anderson localization of light: Strong dependence with incident angle
Ernesto Jimenez-Villar, M. C. S. Xavier, Niklaus U. Wetter +6
This paper studies the transport of light for different incidence angles in a strongly disordered optical medium composed by core-shell nanoparticles (TiO2@Silica) suspended in eth…
Storage of orbital angular momenta of light via coherent population oscillation
A. J. F. de Almeida, S. Barreiro, W. S. Martins +3
We report on the storage of Orbital Angular Momentum (OAM) of light via the phenomenon of Coherent Population Oscillation (CPO) in cold cesium atoms. The experiment is performed us…
Off-axis retrieval of orbital angular momentum of light stored in cold atoms
R. A. de Oliveira, L. Pruvost, P. S. Barbosa +5
We report on the storage of orbital angu- lar momentum (OAM) of light of a Laguerre-Gaussian mode in an ensemble of cold cesium atoms and its re- trieval along an axis different fr…
Single-Photon Superradiance in Cold Atoms
Rafael A. de Oliveira, Milrian S. Mendes, Weliton S. Martins +3
The interaction of an ensemble of atoms with common vacuum modes may lead to an enhanced emission into these modes. This phenomenon, known as superradiance, highlights the coherent…
Laser-induced atomic adsorption: a mechanism for nanofilm formation
Weliton S. Martins, Thierry Passerat de Silans, Marcos Oriá +1
We demonstrate and interpret a technique of laser-induced formation of thin metallic films using alkali atoms on the window of a dense-vapour cell. We show that this intriguing pho…
Selective reflection technique as a probe to monitor the growth of a metallic thin film on dielectric surfaces
Weliton Soares Martins, Marcos Oriá, Martine Chevrollier +1
Controlling thin film formation is technologically challenging. The knowledge of physical properties of the film and of the atoms in the surface vicinity can help improve control o…
Two-beam nonlinear Kerr effect to stabilize laser frequency with sub-Doppler resolution
Weliton Soares Martins, Hugo L. D. de S. Cavalcante, Thierry Passerat de Silans +2
Avoiding laser frequency drifts is a key issue in many atomic physics experiments. Several techniques have been developed to lock the laser frequency using sub-Doppler dispersive a…
Laser stabilization to an atomic transition using an optically generated dispersive lineshape
Fabiano Queiroga, Weliton Soares Martins, Valdeci Mestre +4
We report on a simple and robust technique to generate a dispersive signal which serves as an error signal to electronically stabilize a monomode cw laser emitting around an atomic…