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5 papers · 2 filters
Off-axis digital hologram reconstruction: some practical considerations
Nicolas Verrier, Michael Atlan
Holographic rendering of off-axis intensity digital holograms is discussed. A review of some of the main numerical processing methods, based either on the Fourier transform interpr…
Exploiting the Time-Reversal Operator for Adaptive Optics, Selective Focusing and Scattering Pattern Analysis
Sébastien Michel Popoff, Alexandre Aubry, Geoffroy Lerosey +3
We report on the experimental measurement of the backscattering matrix of a weakly scattering medium in optics, composed of a few dispersed gold nanobeads. The DORT method (Decompo…
Video-rate laser Doppler vibrometry by heterodyne holography
Benjamin Samson, Frédéric Verpillat, Michel Gross +1
We report a demonstration video-rate heterodyne holography in off-axis configuration. Reconstruction and display of 1 Megapixel holograms is achieved at 24 frames per second, with…
Off-axis compressed holographic microscopy in low-light conditions
Marcio M. Marim, Elsa Angelini, J. C. Olivo-Marin +1
This Letter reports a demonstration of off-axis compressed holography in low-light level imaging conditions. An acquisition protocol relying on a single exposure of a randomly unde…
Shaping speckles: spatio-temporal focussing of an ultrafast pulse through a multiply scattering medium
David J. McCabe, Ayhan Tajalli, Dane R. Austin +4
The multiple scattering of coherent light is a problem of both fundamental and applied importance. In optics, phase conjugation allows spatial focussing and imaging through a multi…