Production of dynamic frozen waves: controlling shape, location (and speed) of diffraction-resistant beams

In recent times, we experimentally realized quite an efficient modeling of the shape of diffraction-resistant optical beams, thus generating for the first time the so-called frozen waves (FW), whose longitudinal intensity pattern can be arbitrarily chosen within a prefixed space interval of the prop...

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Bibliographic Details
Published in:Optics letters 2015-12, Vol.40 (24), p.5834-5837
Main Authors: Vieira, Tárcio A, Gesualdi, Marcos R R, Zamboni-Rached, Michel, Recami, Erasmo
Format: Article
Language:English
Subjects:
Beams (radiation)
Dynamic models
Dynamics
Evolution
Freezing
Intervals
Spatial light modulators
Wave propagation
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Summary:In recent times, we experimentally realized quite an efficient modeling of the shape of diffraction-resistant optical beams, thus generating for the first time the so-called frozen waves (FW), whose longitudinal intensity pattern can be arbitrarily chosen within a prefixed space interval of the propagation axis. In this Letter, we extend our theory of FWs, which led to beams endowed with a static envelope, through a dynamic modeling of the FWs whose shape is now allowed to evolve in time in a predetermined way. Further, we experimentally create such dynamic FWs (DFWs) in optics via a computational holographic technique and a spatial light modulator. Experimental results are presented here for two cases of DFWs, one of zeroth order and the other of higher order, the latter being the most interesting exhibiting a cylindrical surface of light whose geometry changes in space and time.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.40.005834