Zobrazeno 1 - 10
of 47
pro vyhledávání: '"Florian Charrière"'
Autor:
Pierre Marquet, Christian Depeursinge, Jonas Kühn, Anca Marian, Frédéric Montfort, Tristan Colomb, Florian Charrière
Publikováno v:
Journal of Microscopy. 225:156-169
The point spread function is widely used to characterize the three-dimensional imaging capabilities of an optical system. Usually, attention is paid only to the intensity point spread function, whereas the phase point spread function is most often ne
Publikováno v:
teme. 73:172-179
Summary Digital holographic microscopy (DHM) is an imaging technique, which can be applied to the visualisation and metrology of microscopic objects. It has been established in the frame of the DISCO project that DHM can be considered as an efficient
Publikováno v:
Novel Optical Instrumentation for Biomedical Applications IV.
Optical tomography provides three-dimensional data of the measured specimen, while quantitative phase imaging enables measuring the induced phase-shifts. Combining those two technologies makes possible to get three-dimensional refractive index recons
Autor:
Tristan Colomb, Christian Depeursinge, Florian Charrière, Yves Emery, Jonas Kühn, Etienne Cuche, Pierre Marquet, Frédéric Montfort, Christophe Pache
Publikováno v:
SPIE Proceedings.
We report on advanced dual-wavelength digital holographic microscopy (DHM) methods, enabling single-acquisition real-time micron-range measurements while maintaining single-wavelength interferometric resolution in the nanometer regime. In top of the
Publikováno v:
Digital Holography and Three-Dimensional Imaging.
Single-acquisition dual-wavelength digital holographic microscopy provides real-time phase measurement range over several microns. We demonstrate axial resolution enhancement down to sub-nanometer range thanks to the non-correlation between both avai
Publikováno v:
Scopus-Elsevier
Digital holographic microscopy (DHM) is a technique that allows obtaining, from a single recorded hologram, quantitative phase image of living cell with interferometric accuracy. Specifically, the optical phase shift induced by the specimen on the tr
Publikováno v:
SPIE Proceedings.
In optics, optical elements are used to transform, to filter or to process physical wavefronts in order to magnify images, compensate for aberration or to suppress unwanted diffracted order for example. Because digital holography provides numerical w
Autor:
Tristan Colomb, Florian Charrière, Yves Emery, Christian Depeursinge, Etienne Cuche, Jonas Kühn
Publikováno v:
SPIE Proceedings.
In this paper, Digital Holographic Microscopy (DHM) is presented as a powerful tool for quality control of micro-optical components. It will be shown that not only the single-shot full field-of-view nanometer axial resolution makes DHM an ideal solut
Publikováno v:
Adaptive Optics: Analysis and Methods/Computational Optical Sensing and Imaging/Information Photonics/Signal Recovery and Synthesis Topical Meetings on CD-ROM.
As digital holography achieves numerical reconstruction of the complex wavefront diffracted by specimen, a numerical optics formalism has been developed: numerical filters replace pinholes in Fourier planes, numerical lenses allow aberrations compens
Publikováno v:
SPIE Proceedings.
In digital holographic microscopy, shot noise is an intrinsic part of the recording process with a digital camera. We present a study based on simulations describing how shot noise influences the quality of the reconstructed phase images under differ