Publications (48)
Video-rate computational heterodyne holography
Antoine Dillée, Romain Cancilliere, Fernando Lopes +1
We present a versatile computational image rendering software of optically-acquired holograms. The reported software can process 4 Megapixel 8-bit raw frames from a sensor array ac…
Phase-resolved heterodyne holographic vibrometry with a strobe local oscillator
Nicolas Verrier, Michel Gross, Michael Atlan
We report a demonstration of phase-resolved vibrometry, in which out-of-plane sinusoidal motion is assessed by heterodyne holography. In heterodyne holography, the beam in the refe…
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…
Holographic laser Doppler ophthalmoscopy
Manuel Simonutti, Michel Paques, J. A. Sahel +4
We report laser Doppler ophthalmoscopic fundus imaging in the rat eye with near-IR heterodyne holography. Sequential sampling of the beat of the reflected radiation against a frequ…
Noise and aliases in off-axis and phase-shifting holography
Michel Gross, Michael Atlan, Emilie Absil
We have compared the respective efficiencies of off-axis and phase-shifting holography in terms of noise and aliases removal. The comparison is made by analyzing holograms of an US…
Heterodyne holographic microscopy of gold particles
Michael Atlan, Michel Gross, Pierre Desbiolles +3
We report experimental results on heterodyne holographic microscopy of subwavelength-sized gold particles. The apparatus uses continuous green laser illumination of the metal beads…
Reverse contrast laser Doppler holography for lower frame rate retinal and choroidal blood flow imaging
Leo Puyo, Michel Paques, Michael Atlan
Laser Doppler holography (LDH) is an interferometric blood flow imaging technique based on full-field measurements of the Doppler spectrum. LDH has so far been demonstrated in the…
Spatiotemporal heterodyne detection
Michael Atlan, Michel Gross
We describe a scheme into which a camera is turned into an efficient tunable frequency filter of a few Hertz bandwidth in an off-axis, heterodyne optical mixing configuration, enab…
Absolute measurement of small-amplitude vibrations by time-averaged heterodyne holography with a dual local oscillator
Nicolas Verrier, Michael Atlan
We report a demonstration of the measurement of the ratio between an optical modulation side band component and the non-shifted light component by time-averaged heterodyne holograp…
Compressed Sensing with off-axis frequency-shifting holography
Marcio Marim, Michael Atlan, Elsa Angelini +1
This work reveals an experimental microscopy acquisition scheme successfully combining Compressed Sensing (CS) and digital holography in off-axis and frequency-shifting conditions.…
Effect of the Photon's Brownian Doppler Shift on the Weak-Localization Coherent-Backscattering Cone
Max Lesaffre, Michael Atlan, Michel Gross
We report the first observation of the dependence of the coherent-backscattering (CBS) enhanced cone with the frequency of the backscattered photon. The experiment is performed on…
Spatio-temporal filtering in laser Doppler holography for retinal blood flow imaging
Leo Puyo, Michel Paques, Michael Atlan
Laser Doppler holography (LDH) is a full-field interferometric imaging technique recently applied in ophthalmology to measure blood flow, a parameter of high clinical interest. Fro…
Ultrahigh-speed digital holography for quantitative Doppler imaging of the human retina
Zacharie Auray, Yann Fischer, Olivier Martinache +1
High-speed digital holography reveals local blood flow contrasts in the eye fundus through deterministic signal analysis, leveraging a forward scattering model of dynamically diffu…
Non-destructive testing of composite plates by holographic vibrometry
Francois Bruno, Jérôme Laurent, Claire Prada +3
We report on a wide-field optical monitoring method for revealing local delaminations in sandwich-type composite plates at video-rate by holographic vibrometry. Non-contact measure…
Doppler holography for ophthalmology
Michael Atlan
A comprehensive assessment of retinal health demands reliable and precise methods to measure localized blood perfusion. Despite considerable advancements in imaging techniques, suc…
Laser Doppler Imaging of Microflow
Michel Gross, Michael Atlan, Jacques Leng
We report a pilot study with a wide-field laser Doppler detection scheme used to perform laser Doppler anemometry and imaging of particle seeded microflow. The optical field carryi…
Imaging velocities of a vibrating object by stroboscopic sideband holography
Frédéric Verpillat, Fadwa Joud, Michael Atlan +1
We propose here to combine sideband holography with stroboscopic illumination synchronized with the vibration of an object. By sweeping the optical frequency of the reference beam…
Parallel heterodyne detection of dynamic light scattering spectra from gold nanoparticles diffusing in viscous fluids
Michael Atlan, Pierre Desbiolles, Michel Gross +1
We developed a microscope intended to probe, using a parallel heterodyne receiver, the fluctuation spectrum of light quasi-elastically scattered by gold nanoparticles diffusing in…
Diffuse Maxwellian illumination for safe wide-field retinal Doppler holography
Zofia Bratasz, Olivier Martinache, Yohan Blazy +21
We report a diffuse Maxwellian illumination scheme for wide-field retinal laser Doppler holography. Inserting an engineered diffuser in the illumination arm transforms a spatially…
Imaging of a vibrating object by Sideband Digital Holography
Fadwa Joud, Franck Laloë, Michael Atlan +2
We obtain quantitative measurements of the oscillation amplitude of vibrating objects by using sideband digital holography. The frequency sidebands on the light scattered by the ob…
Short-time Fourier transform laser Doppler holography
Benjamin Samson, Michael Atlan
We report a demonstration of laser Doppler holography at a sustained acquisition rate of 250 Hz on a 1 Megapixel complementary metal-oxide-semiconductor (CMOS) sensor array and ima…
Shot Noise in Digital Holography
Fadwa Joud, Frédéric Verpillat, Michael Atlan +2
We discuss on noise in heterodyne holography in an off-axis configuration. We show that, for a weak signal, the noise is dominated by the shot noise on the reference beam. This noi…
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…
Holographic laser Doppler imaging of pulsatile blood flow
Jeffrey Bencteux, Pierre Pagnoux, Thomas Kostas +2
We report on wide-field imaging of pulsatile motion induced by blood flow using heterodyne holographic interferometry on the thumb of a healthy volunteer, in real-time. Optical Dop…
One single static measurement predicts wave localization in complex structures
Gautier Lefebvre, Alexane Gondel, Marc Dubois +9
A recent theoretical breakthrough has brought a new tool, called \emph{localization landscape}, to predict the localization regions of vibration modes in complex or disordered syst…
Improving segmentation of retinal arteries and veins using cardiac signal in doppler holograms
Marius Dubosc, Yann Fischer, Zacharie Auray +4
Doppler holography is an emerging retinal imaging technique that captures the dynamic behavior of blood flow with high temporal resolution, enabling quantitative assessment of reti…
Off-axis digital holography with multiplexed volume Bragg gratings
Leo Puyo, Jean-Pierre Huignard, Michael Atlan
We report on an optical imaging design based on common-path off-axis digital holography, using a multiplexed volume Bragg grating. In the reported method, a reference optical wave…
Digital Holography at Shot Noise Level
Frédéric Verpillat, Fadwa Joud, Michael Atlan +1
By a proper arrangement of a digital holography setup, that combines off-axis geometry with phase-shifting recording conditions, it is possible to reach the theoretical shot noise…
Waveform analysis of human retinal and choroidal blood flow with laser Doppler holography
Léo Puyo, Michel Paques, Mathias Fink +2
Laser Doppler holography was introduced as a full-field imaging technique to measure blood flow in the retina and choroid with an as yet unrivaled temporal resolution. We here inve…
Laser Doppler holography of the anterior segment for blood flow imaging, eye tracking, and transparency assessment
Léo Puyo, Clémentine David, Rana Saad +6
Laser Doppler holography (LDH) is a full-field blood flow imaging technique able to reveal human retinal and choroidal blood flow with high temporal resolution. We here report on u…
Holographic vibrometry: Full field holographic vibrometry at ultimate limits
Nicolas Verrier, Michael Atlan, Michel Gross
Heterodyne holography is an extremely versatile and powerful holographic technique that is able to fully control the amplitude, phase and frequency of both the illumination and hol…
Imaging Gold Nanoparticles in Living Cells Environments using Heterodyne Digital Holographic Microscopy
Nilanthi Warnasooriya, Fadwa Joud, Philippe Bun +6
This paper describes an imaging microscopic technique based on heterodyne digital holography where subwavelength-sized gold colloids can be imaged in cell environment. Surface cell…
Digital holography with ultimate sensitivity
Michel Gross, Michael Atlan
We propose a variant of the heterodyne holography scheme that combines the properties of off-axis and phase-shifting holography. This scheme makes it possible to filter off numeric…
Signal and Noise scaling factors in digital holography
Max Lesaffre, Nicolas Verrier, Michael Atlan +1
An experimental study on how reconstructed image signal and noise scale with acquisition and reconstruction parameters is proposed. Monte-carlo simulation is performed to emphasize…
Wide-field Fourier transform spectral imaging
Michael Atlan, Michel Gross
We report experimental results of parallel measurement of spectral components of the light. The temporal fluctuations of an optical field mixed with a separate reference are record…
3D exploration of light scattering from live cells in the presence of gold nanomarkers using holographic microscopy
Fadwa Joud, N. Warnasooriya, P. Bun +8
In this paper, we explore the 3D structure of light scattering from dark-field illuminated live 3T3 cells in the presence of 40 nm gold nanomarkers. For this purpose, we use a high…
Holovibes: real-time ultrahigh-speed digital hologram rendering and short-time analysis
Marius Dubosc, Maxime Boy-Arnould, Jules Guillou +51
Real-time ultrahigh-speed rendering of digital holograms from high-bitrate interferogram streams demands robust parallel computing and efficient data handling with minimal latency.…
Retinal arterial blood flow measured by real-time Doppler holography at 33,000 frames per second
Yann Fischer, Zacharie Auray, Olivier Martinache +5
This study presents a novel quantitative estimation method for total retinal arterial blood flow utilizing real-time Doppler holography at an unprecedented frame rate of 33,000 fra…
Retinal blood flow reversal quantitatively monitored in out-of-plane vessels with laser Doppler holography
Léo Puyo, Michel Paques, Michael Atlan
Laser Doppler holography is a planar blood flow imaging technique recently introduced in ophthalmology to image human retinal and choroidal blood flow non-invasively. Here we prese…
Real-time digital holography of the retina by principal component analysis
Leo Puyo, Loic Bellonnet-Mottet, Antoine Martin +3
We demonstrate the feasibility of high-quality digital holography of the human retina in real-time with a fast camera and commodity computer hardware. High throughput rendering of…
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…
Vibration motions studied by Heterodyne Holography
Fadwa Joud, Frédéric Verpillat, Pierre-André TAILLARD +3
Playing with amplitude, phase and frequency of both reference and signal arms, heterodyne holography is well adapted to vibration analysis. Vibration sidebands can be imaged and st…
Phase-sensitive narrowband heterodyne holography
Francois Bruno, Jean-Baptiste Laudereau, Max Lesaffre +2
We report on amplitude and phase imaging of out-of-plane sinusoidal surface vibration at nanometer scales with a heterodyne holographic interferometer. The originality of the propo…
Choroidal vasculature imaging with laser Doppler holography
Léo Puyo, Michel Paques, Mathias Fink +2
The choroid is a highly vascularized tissues supplying the retinal pigment epithelium and photoreceptors. Its implication in retinal diseases is gaining increasing interest. Howeve…
Holographic imaging of surface acoustic waves
Francois Bruno, Jérôme Laurent, Daniel Royer +1
We report on an experimental demonstration of surface acoustic waves monitoring on a thin metal plate with heterodyne optical holography. Narrowband imaging of local optical pathle…
Exploring shot noise and Laser Doppler imagery with heterodyne holography
Michel Gross, Frédéric Verpillat, Fadwa Joud +1
Heterodyne Holography is a variant of Digital Holography, where the optical frequencies of signal and reference arms can be freely adjusted by acousto-optic modulators. Heterodyne…
High speed optical holography of retinal blood flow
Mathilde Pellizzari, Manuel Simonutti, Julie Degardin +4
We performed non-invasive video imaging of retinal blood flow in a pigmented rat by holographic interferometry of near-infrared laser light backscattered by retinal tissue, beating…
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…