Centre National De La Recherche Scientifique

Institut National De La Sante Et De La Recherche Medicale

Université Paris Descartes

Other

Universite Paris Cité

Eirini Papagiakoumou

Valentina Emiliani

Marc Guillon

Oscar Hernandez-Cubero

Emiliano Ronzitti

Nicolò Accanto

Emiliani Valentina

Dimitrii Tanese

The present invention concerns an optical system for spatiotemporally shaping the wavefront of the electric field of a light beam () to be projected into a target volume (), where the propagation axis is axis z, to create 3D patterned illumination in the target volume (), comprising a pulsed laser source, configured to have an illumination pattern whose transversal surface at the target volume being superior to the diffraction limit of the optical system, at least one intermediate optical element () which is a dispersive grating for performing temporal focusing of the light beam (), located, on the propagation axis (z), where an image of the illumination pattern is formed, for modulating the phase and/or the amplitude of the electric field of the light beam, and a second optical element () which is a spatiallight modulator for modulating the phase of the electric field of the input light beam, and for realizing spatiotemporal multiplexing to create 3D patterned illumination in the target volume () by replicating the illumination pattern, so as to have several replicated illumination patterns in the target volume (), and controlling the position with transversal coordinates X, Y and axial coordinate Z of each replicated illumination pattern in the target volume ().

Optical system for spatiotemporal shaping the wavefront of the electric field of an input light beam to create three-dimensional illumination

An optical system for shaping a wavefront of an electric field of an input light beam to be projected into a target volume including a first optical element, a spatial light modulator used to control light distribution in at least one transverse plane in the target volume. An intermediate optical element located on an optical axis, after the first optical element on a trajectory of the light beam for modulating the phase or the amplitude of the electric field of the input light beam is included. A second optical element for modulating the phase or the amplitude of the electric field of the input light beam is used to control the axial position of the transverse plane in the target volume. The second optical element is situated on the optical axis after the at least one intermediate optical element on the trajectory of the light beam.

Optical system for shaping the wavefront of the electric field of an input light beam

The invention concerns an optical system () comprising:

Optical system comprising a spatial light modulator

Growing community of inventors

Antony, France

Eirini Papagiakoumou