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12 papers · 1 filter
Singular value demodulation of phase-shifted holograms
Fernando Lopes, Michael Atlan
We report on phase-shifted holographic interferogram demodulation by singular value decomposition. Numerical processing of optically-acquired interferograms over several modulation…
Single-side access, isotropic resolution and multispectral 3D photoacoustic imaging with rotate-translate scanning of ultrasonic detector array
Jérôme Gateau, Marc Gesnik, Jean-Marie Chassot +1
Photoacoustic imaging can achieve high-resolution three-dimensional visualization of optical absorbers at penetration depths ~ 1 cm in biological tissues by detecting optically-ind…
Holographic laser Doppler imaging of microvascular blood flow
C. Magnain, A. Castel, T. Boucneau +7
We report on local superficial blood flow monitoring in biological tissue from laser Doppler holographic imaging. In time averaging recording conditions, holography acts as a narro…
Non-invasive real-time imaging through scattering layers and around corners via speckle correlations
Ori Katz, Pierre Heidmann, Mathias Fink +1
Imaging with optical resolution through and inside complex samples is a difficult challenge with important applications in many fields. The fundamental problem is that inhomogeneou…
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…
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…