Search Results - "Andresen, Esben Ravn"

BPM-Matlab: an open-source optical propagation simulation tool in MATLAB by Veettikazhy, Madhu, Kragh Hansen, Anders, Marti, Dominik, Mark Jensen, Stefan, Lykke Borre, Anja, Ravn Andresen, Esben, Dholakia, Kishan, Eskil Andersen, Peter

“…We present the use of the Douglas-Gunn Alternating Direction Implicit finite difference method for computationally efficient simulation of the electric field…”
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Background-free stimulated Raman spectroscopy and microscopy by Berto, Pascal, Andresen, Esben Ravn, Rigneault, Hervé

“…We propose a three-color, double-modulation scheme for the background-free detection of stimulated Raman scattering (SRS). We call the scheme stimulated Raman…”
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Ultrathin endoscopes based on multicore fibers and adaptive optics: a status review and perspectives by Andresen, Esben Ravn, Sivankutty, Siddharth, Tsvirkun, Viktor, Bouwmans, Géraud, Rigneault, Hervé

“…We take stock of the progress that has been made into developing ultrathin endoscopes assisted by wave front shaping. We focus our review on multicore…”
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High-resolution multimodal flexible coherent Raman endoscope by Lombardini, Alberto, Mytskaniuk, Vasyl, Sivankutty, Siddharth, Andresen, Esben Ravn, Chen, Xueqin, Wenger, Jérôme, Fabert, Marc, Joly, Nicolas, Louradour, Frédéric, Kudlinski, Alexandre, Rigneault, Hervé

“…Coherent Raman scattering microscopy is a fast, label-free, and chemically specific imaging technique that shows high potential for future in vivo optical…”
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Characterization and Exploitation of the Rotational Memory Effect in Multimode Fibers by Gutiérrez-Cuevas, Rodrigo, Goetschy, Arthur, Bromberg, Yaron, Pelc, Guy, Andresen, Esben Ravn, Bigot, Laurent, Quiquempois, Yves, Bsaibes, Maroun, Sillard, Pierre, Bigot, Marianne, Katz, Ori, de Rosny, Julien, Popoff, Sébastien M.

“…In an ideal perfectly straight multimode fiber with a circular core, the symmetry ensures that rotating the input wave front leads to a corresponding rotation…”
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Tapered Multicore Fiber for Lensless Endoscopes by El Moussawi, Fatima, Hofer, Matthias, Labat, Damien, Cassez, Andy, Bouwmans, Géraud, Sivankutty, Siddharth, Cossart, Rosa, Vanvincq, Olivier, Rigneault, Hervé, Andresen, Esben Ravn

“…We present a novel fiber-optic component, a “tapered multicore fiber (MCF)”, designed for integration into ultraminiaturized endoscopes for minimally invasive…”
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Site-Specific Difference 2D-IR Spectroscopy of Bacteriorhodopsin by Andresen, Esben Ravn, Hamm, Peter

“…We demonstrate the extension of the principle of difference Fourier transform infrared (FTIR) spectroscopy to difference 2D-IR spectroscopy. To this end, we…”
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Vibrational Dynamics of LiBH4 by Infrared Pump−Probe and 2D Spectroscopy by Andresen, Esben Ravn, Gremaud, Robin, Borgschulte, Andreas, Ramirez-Cuesta, Anibal Javier, Züttel, Andreas, Hamm, Peter

“…Employing femtosecond IR pump−probe and 2D spectroscopy, we measure the vibrational dynamics of LiBH4 and several of its deuterium isotopomers. We find that…”
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Widefield lensless imaging through a fiber bundle via speckle correlations by Porat, Amir, Andresen, Esben Ravn, Rigneault, Hervé, Oron, Dan, Gigan, Sylvain, Katz, Ori

“…Flexible fiber-optic endoscopes provide a solution for imaging at depths beyond the reach of conventional microscopes. Current endoscopes require focusing…”
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Computational Fluorescence Imaging with Multi-Core Fiber Bundles - Towards High-Speed Imaging Through Bare Optical Fibers by Sivankutty, Siddharth, Guerit, Stephanie, Leblanc, Olivier, Hofer, Matthias, Bouwmans, Geraud, Andresen, Esben Ravn, Jacques, Laurent, Rigneault, Herve

“…Wavefront control of the coherent lasers has opened a new class of imaging techniques through optical fibers called lensless endoscopes. A spatial light…”
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Two-Photon Lensless Endoscopes with Multicore Fibers by Moussawi, Fatima El, Hofer, Matthias, Sivankutty, Siddharth, Bertoncini, Andrea, Labat, Damien, Cassez, Andy, Bouwmans, Geraud, Cossart, Rosa, Vanvincq, Olivier, Liberale, Carlo, Rigneault, Herve, Andresen, Esben Ravn

“…The lensless endoscope represents the ultimate limit in miniaturization of imaging tools: an image can be transmitted by numerical or physical inversion of the…”
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Miniature 120-beam coherent combiner with 3D printed optics for multicore fiber based endoscopy by Sivankutty, Siddharth, Bertoncini, Andrea, Tsvirkun, Victor, Kumar, Naveen Gajendra, Brévalle, Gaelle, Bouwmans, Géraud, Andresen, Esben Ravn, Liberale, Carlo, Rigneault, Hervé

“…We report high efficiency, miniaturized, ultra-fast coherent beam combining with 3D printed micro-optics directly on the tip of a multicore fiber bundle. The…”
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Tapered multi-core fiber for biomedical lens-less endoscopes by El Moussawi, Fatima, Hofer, Matthias, Gajendra Kumar, Naveen, Cassez, Andy, Labat, Damien, Bouwmans, Geraud, Vanvincq, Olivier, Rigneault, Herve, Ravn Andresen, Esben

“…We present a novel fiber-optic component, a "tapered multi-core fiber", designed for integration into ultra-miniaturized endoscopes for minimally invasive…”
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Toward endoscopes with no distal optics: video-rate scanning microscopy through a fiber bundle by Andresen, Esben Ravn, Bouwmans, Géraud, Monneret, Serge, Rigneault, Hervé

“…We report a step toward scanning endomicroscopy without distal optics. The focusing of the beam at the distal end of a fiber bundle is achieved by imposing a…”
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Two-photon lensless endoscope by Andresen, Esben Ravn, Bouwmans, Géraud, Monneret, Serge, Rigneault, Hervé

“…We report a first demonstration of two-photon endoscopic imaging with a lensless endoscope. The endoscope probe is a double-clad bundle of single-mode fibers;…”
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Mode Recovery by S ^2 Imaging Without a Fourier Transform by Quiquempois, Yves, Sevigny, Benoit, Andresen, Esben Ravn, Chedid, Alex, Bigot, Laurent

“…In its standard implementation, spatially and spectrally resolved (S<inline-formula><tex-math notation="LaTeX">^2</tex-math></inline-formula>) imaging consists…”
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Mode Recovery by S[Formula Omitted] Imaging Without a Fourier Transform by Quiquempois, Yves, Sevigny, Benoit, Esben Ravn Andresen, Chedid, Alex, Bigot, Laurent

“…In its standard implementation, spatially and spectrally resolved (S[Formula Omitted]) imaging consists in recording near field intensity patterns as a…”
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Ultra-thin rigid endoscope: two-photon imaging through a graded-index multi-mode fiber by Sivankutty, Siddharth, Andresen, Esben Ravn, Cossart, Rosa, Bouwmans, Géraud, Monneret, Serge, Rigneault, Hervé

“…Rigid endoscopes like graded-index (GRIN) lenses are known tools in biological imaging, but it is conceptually difficult to miniaturize them. In this letter,…”
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Coupling optimized bending-insensitive multi-core fibers for lensless endoscopy by Gajendra Kumar, Naveen, Sivankutty, Siddharth, Tsvirkun, Victor, Cassez, Andy, Labat, Damien, Cossart, Rosa, Bouwmans, Geraud, Andresen, Esben Ravn, Rigneault, Hervé

“…We report a bending-insensitive multi-core fiber (MCF) for lensless endoscopy imaging with modified fiber geometry that enables optimal light coupling in and…”
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Single-shot non-interferometric measurement of the phase transmission matrix in multicore fibers by Sivankutty, Siddharth, Tsvirkun, Viktor, Bouwmans, Géraud, Andresen, Esben Ravn, Oron, Dan, Rigneault, Hervé, Alonso, Miguel A

“…A simple technique for far-field single-shot non-interferometric determination of the phase transmission matrix of a multicore fiber with over 100 cores is…”
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