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11 papers · 2 filters
Subwavelength focusing inside an open disordered medium by time reversal at a single point antenna
Romain Pierrat, Cédric Vandenbem, Mathias Fink +1
We study theoretically light focusing at subwavelength scale inside a disordered strongly scattering open medium. We show that broadband time reversal at a single point antenna, in…
Photonic engineering of hybrid metal-organic chromophores
Mickaël P. Busson, Brice Rolly, Brian Stout +3
We experimentally demonstrate control of the absorption and emission properties of individual emitters by photonic antennas in suspension. The method results in a new class of wate…
(DH) Noise and Signal scaling factors in Digital Holography in week illumination: relationship with Shot Noise
Max Lesaffre, Nicolas Verrier, Michel Gross
We have performed off axis heterodyne holography with very weak illumination by recording holograms of the object with and without object illumination in the same acquisition run.…
Acousto-optical coherence tomography with a digital holographic detection scheme
Michel Gross, François Ramaz, Emilie Benoit +2
Acousto-optical coherence tomography (AOCT) consists in using random phase jumps on ultrasound and light to achieve a millimeter resolution when imaging thick scattering media. We…
Spatial coherence in complex photonic and plasmonic systems
A. Cazé, R. Pierrat, R. Carminati
The concept of cross density of states characterizes the intrinsic spatial coherence of complex photonic or plasmonic systems, independently on the illumination conditions. Using t…
Acousto-optic laser optical feedback imaging
Olivier Jacquin, Wilfried Glastre, Eric Lacot +3
We present a photon noise and diffraction limited imaging method combining the imaging laser and ultrasonic waves. The laser optical feedback imaging (LOFI) technique is an ultrase…