Palestrante
Descrição
The motivation of this project is to develop experimental techniques of optical trapping and optical control applicable to atomic physics and nanotweezers as a platform to study important contemporary problems of modern physics and technology - which is in the context of the generation of arbitrary optical potentials to simulate out-of-equilibrium systems, coherent control of qubits, and quantum simulation. In particular, in this project has been studied the spatial modulation of light by the Generalized Phase Contrast (GPC) technique, to produce with high precision different optical potentials. Unlike the more well-known technique of holography, the GPC can produce very sharp potentials without speckles and that allows a single pixel control through a single path interferometer. (1) Basically, the GPC works creating a phase-shift in the zero spatial frequency components of the laser beam modulated in a Spatial Light Modulator (SLM) and building a interferogram through a 4f optical correlator. (1-2) In this context, will be shown our first results with a preliminary technique of GPC, known as Zeroth-Order technique, wich has the same optical system and works creatting a high precision amplitude mask through phase control of the light. (2) In both cases our main goals include the comparison of this techniques with holography, build an automated system for the potentials control and make a quantitative study of GPC and its derivations for optical trapping.
Referências
1 BAÑAS, A.; GLÜCKSTAD, J. Light shapping with holography, GPC and holo-GPC. Optical Data Processing and Storage, v. 3, n. 1, p. 20-40, 2017.
2 PIZOLATO, J. et al. Zeroth-order phase-contrast technique. Applied Optics, v. 46, n. 31, p. 7604-7613, 2007.
| Apresentação do trabalho acadêmico para o público geral | Sim |
|---|---|
| Subárea | Óptica e Lasers |
