Concept

Wavefront coding

Publications associées (5)

Extended depth-of-focus by digital holographic microscopy

Christian Depeursinge, Tristan Colomb, Etienne Cuche, Nicolas Pavillon, Jonas Kühn

A recurrent problem in microscopy is the finite depth-of-focus linked to the NA of microscope objectives. Digital holographic microscopy (DHM) has the unique feature of being able to numerically change the focus from a single hologram without the need of m ...

Optical Society of America2010

Ultrathin four-reflection imager

We present the design and experimental demonstration of an ultrathin four-reflection imager. The F/1.15 prototype imager achieves a focal length of 18.6 mm in a track length of just 5.5 mm, providing a 17° field of view over 1.92 megapixels of a color imag ...

2009

Advantages of digital holographic microscopy for real-time full field absolute phase imaging

Christian Depeursinge, Tristan Colomb, Pierre Marquet, Jonas Kühn, Florian Charrière

Different interferometric techniques were developed last decade to obtain full field, quantitative, and absolute phase imaging, such as phase-shifting, Fourier phase microscopy, Hilbert phase microscopy or digital holographic microscopy (DHM). Although, th ...

SPIE2008

Amplitude point spread function measurement of high NA microscope objectives by digital holographic microscopy

Christian Depeursinge, Tristan Colomb, Pierre Marquet, Florian Charrière, Mihaela Marian

We present here a three-dimensional evaluation of the amplitude point-spread function (APSF) of a microscope objective (MO), based on a single holographic acquisition of its pupil wavefront. The aberration function is extracted from this pupil measurements ...

2007

Shot noise, refractive index tomography and aberrations estimation in digital holographic microscopy

Florian Charrière

The present thesis develops some specific aspects of digital holographic microscopy (DHM), namely the effect of shot noise on the phase image accuracy, the use of DHM in micro-tomography and in aberrations evaluation of a microscope objective (MO). DHM is ...

EPFL2007

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