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COHERENCE SIGNED

Exploiting light coherence in photoacoustic imaging

Total Cost €

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EC-Contrib. €

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Partnership

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Project "COHERENCE" data sheet

The following table provides information about the project.

Coordinator
UNIVERSITE GRENOBLE ALPES 

There are not information about this coordinator. Please contact Fabio for more information, thanks.

 Coordinator Country France [FR]
 Total cost 2˙116˙290 €
 EC max contribution 2˙116˙290 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2015-CoG
 Funding Scheme ERC-COG
 Starting year 2016
 Duration (year-month-day) from 2016-10-01   to  2021-09-30

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    UNIVERSITE GRENOBLE ALPES FR (GRENOBLE) coordinator 2˙116˙290.00
2    UNIVERSITE GRENOBLE ALPES FR (SAINT MARTIN D'HERES) coordinator 0.00

Map

 Project objective

Photoacoustic imaging is an emerging multi-wave imaging modality that couples light excitation to acoustic detection, via the photoacoustic effect (sound generation via light absorption). Photoacoustic imaging provides images of optical absorption (as opposed to optical scattering). In addition, as photoacoustic imaging relies on detecting ultrasound waves that are very weakly scattered in biological tissue, it provides acoustic-resolution images of optical absorption non-invasively at large depths (up to several cm), where purely optical techniques have a poor resolution because of multiple scattering. As for conventional purely optical approaches, optical-resolution photoacoustic microscopy can also be performed non-invasively for shallow depth (< 1 mm), or invasively at depth by endoscopic approaches. However, photoacoustic imaging suffers several limitations. For imaging at greater depths, non-invasive photoacoustic imaging in the acoustic-resolution regime is limited by a depth-to-resolution ratio of about 100, because ultrasound attenuation increases with frequency. Optical-resolution photoacoustic endoscopy has very recently been introduced as a complementary approach, but is currently limited in terms of resolution (> 6 µm) and footprint (diameter > 2 mm). The overall objective of COHERENCE is to break the above limitations and reach diffraction-limited optical-resolution photoacoustic imaging at depth in tissue in vivo. To do so, the core concept of COHERENCE is to use and manipulate coherent light in photoacoustic imaging. Specifically, COHERENCE will develop novel methods based on speckle illumination, wavefront shaping and super-resolution imaging. COHERENCE will result in two prototypes for tissue imaging, an optical-resolution photoacoustic endoscope for minimally-invasive any-depth tissue imaging, and a non-invasive photoacoustic microscope with enhanced depth-to-resolution ratio, up to optical resolution in the multiply-scattered light regime.

 Publications

year authors and title journal last update
List of publications.
2017 Sergey Vilov, Bastien Arnal, Emmanuel Bossy
Overcoming the acoustic diffraction limit in photoacoustic imaging by the localization of flowing absorbers
published pages: 4379, ISSN: 0146-9592, DOI: 10.1364/OL.42.004379
Optics Letters 42/21 2020-04-15
2017 Thomas Chaigne, Bastien Arnal, Sergey Vilov, Emmanuel Bossy, Ori Katz
Super-resolution photoacoustic imaging via flow-induced absorption fluctuations
published pages: 1397, ISSN: 2334-2536, DOI: 10.1364/OPTICA.4.001397
Optica 4/11 2020-04-15
2017 Eliel Hojman, Thomas Chaigne, Oren Solomon, Sylvain Gigan, Emmanuel Bossy, Yonina C. Eldar, Ori Katz
Photoacoustic imaging beyond the acoustic diffraction-limit with dynamic speckle illumination and sparse joint support recovery
published pages: 4875, ISSN: 1094-4087, DOI: 10.1364/OE.25.004875
Optics Express 25/5 2020-04-15

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The information about "COHERENCE" are provided by the European Opendata Portal: CORDIS opendata.

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