Publications de Etienne Shaffer

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Optical second harmonic generation, thanks to its coherent nature, is a suitable signal for interferometric measurements, such as digital holography: a well-established imaging technique that allows recovering complex diffraction wavefields from which it i ...

To evaluate the severity of airway pathologies, quantitative dimensioning of airways is of utmost importance. Endoscopic vision gives a projective image and thus no true scaling information can be directly deduced from it. In this article, an approach base ...

This dissertation is dedicated to the application of digital holography methods to second harmonic generation microscopy, and to the development of the resulting imaging technique: holographic second harmonic generation microscopy. Second harmonic generati ...

Digital Holographic Microscopy (DHM) is a label-free imaging technique allowing visualization of transparent cells with classical imaging cell culture plates. The quantitative DHM phase contrast image provided is related both to the intracellular refractiv ...

We report the experimental observation of systematically occurring phase singularities in coherent imaging of sub-Rayleigh distanced objects. A theory that relates the observation to the sub-Rayleigh distance is presented and compared with experimental mea ...

In the past decade, quantitative phase imaging gave a new dimension to optical microscopy, and the recent extension of digital holography techniques to nonlinear microscopy appears very promising, for the phase of nonlinear signal provides additional infor ...

In this work, we demonstrate single-shot, simultaneous recording and subsequent retrieval of one incoherent and two holographic (intensity and phase) images from the same camera frame. Demultiplexing of incoherent and holographic signals in the spatial fre ...

The present invention discloses a method and its associated apparatus to retrieve the amplitude and, especially, the phase of nonlinear electromagnetic waves. The application field of the present invention is optical imaging. A sample is probed by coherent ...

We introduce a label-free technology based on digital holographic microscopy (DHM) with applicability for screening by imaging, and we demonstrate its capability for cytotoxicity assessment using mammalian living cells. For this first high content screenin ...

We have previously developed a new way for nonscanning second-harmonic generation (SHG) microscopy [Opt. Lett. 34, 2450 (2009)]. Based on digital holography, this technique captures, in single-shot hologram acquisition, both the amplitude and the phase of ...

Etienne Shaffer

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Digital holographic microscopy investigation of second harmonic generated at a glass/air interface

Endoscopic low coherence topography measurement for upper airways and hollow samples

Holographic Second Harmonic Generation Microscopy

Digital holographic microscopy: a quantitative label-free microscopy technique for phenotypic screening

Sub-Rayleigh resolution by phase imaging

Real time, nanometric 3D-tracking of nanoparticles made possible by second harmonic generation digital holographic microscopy

Single-shot, simultaneous incoherent and holographic microscopy

Method and apparatus for retrieval of amplitude and phase of nonlinear electromagnetic waves

Label-Free Cytotoxicity Screening Assay by Digital Holographic Microscopy

Label-free second harmonic phase imaging of biological specimen by digital holographic microscopy