Speaker
Muriel Bonetto
(Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Física, Buenos Aires, Argentina)
Description
We present results showing that using LG beams allows sensing temperature in the direction perpendicular to the propagation of the beam and with increased sensitivity with respect to plane waves. We use two counterrotating and copropagating vortex laser beams, which isolates the azimuthal gradients of the fields, eliminating longitudinal and curvature effects. By performing Coherent Population Trapping spectroscopy with this configuration we are able to measure the thermal motion of the ion in the direction transversal to the propagation of the beam. Furthermore, by having tightly focused beams we can perform this experiments near the center of the vortex, achieving sensitivity beyond the plane wave Doppler Shift
| Academic level | PhD student |
|---|
Author
Muriel Bonetto
(Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Física, Buenos Aires, Argentina)
Co-authors
Carolina Vlatko
(Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Física, Buenos Aires, Argentina)
Cecilia Cormick
(Universidad de la República, Facultad de Ingeniería, Instituto de Física. Montevideo, Uruguay)
Christian Schmiegelow
(Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Física, Buenos Aires, Argentina)
Corina Révora
(Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Física, Buenos Aires, Argentina)
Marcelo Luda
(CEILAP, CITEDEF, Buenos Aires, Argentina)
Nicolas Adrian Nuñez Barreto
(University of Basel)
Till Nemolcev
(Technical University of Munich, School of Exact Sciences, Munich, Germany.)