Publications related to Tomographie en cohérence optique dans le domaine de Fourier appliquée aux tissus humains

Vectorial reconstruction of retinal blood flow in three dimensions measured with high resolution resonant Doppler Fourier domain optical coherence tomography

Theo Lasser, Rainer Leitgeb, Martin Villiger, Adrian Bachmann, Roland Michaely, Cédric Blatter

Resonant Doppler Fourier domain optical coherence tomography (FDOCT) is a functional imaging tool for extracting tissue flow. The method is based on the effect of interference fringe blurring in spectrometer-based FDOCT, where the path difference between s ...

2007

Adaptive optics using a liquid crystal spatial light modulator for ultrahigh-resolution optical coherence tomography

Rainer Leitgeb

Three-dimensional ultrahigh resolution optical coherence tomography (UHR OCT) and adaptive optics (AO) are combined using a liquid crystal programmable phase modulator (PPM) as a correcting device for the first time. AO is required for correcting ocular ab ...

SPIE2006

Insights into excited-state and isomerization dynamics of bacteriorhodopsin from ultrafast transient UV absorption

Majed Chergui, Frank van Mourik, Selma Schenkl

A visible-pump/UV-probe transient absorption is used to characterize the ultrafast dynamics of bacteriorhodopsin with 80-fs time resoln. We identify three spectral components in the 265- to 310-nm region, related to the all-trans retinal, tryptophan (Trp)- ...

2006

Innovative experimental concepts for optical coherence tomography

Markus Laubscher

Optical Coherence Tomography (OCT) is a recent biomedical imaging technique based on low-coherence interferometry that is capable of acquiring depth-resolved reflectivity maps of scattering tissues with high sensitivity. The conventionally employed imaging ...

EPFL2004

Low coherence digital holographic tomography

Christian Depeursinge, Etienne Cuche, Pia Massatsch

Low coherence, digital holographic microscopy (LCDHM) is a new 3D imaging technique combining the advantages of digital holographic microscopy with those of reduced coherence interferometry. This gives the possibility to perform tomography of 3D objects wh ...

SPIE2003

An optical fibre sensor for dynamic deformation measurements based on the intensity modulation of a low-coherence source

Luc Thévenaz, Pramod Rastogi, Daniele Inaudi

An optical fibre sensing technique for the measurement of dynamic deformations using a Michelson interferometer is reported. The method applied to interferometers with an initial path unbalance of around 1 cm is based on the rf intensity modulation of a lo ...

Taylor & Francis2003

Self-referenced method for optical path difference calibration in low-coherence interferometry

René Salathé, Theo Lasser, Boris Clément Karamata, Markus Laubscher

A simple method for the calibration of optical path difference modulation in low-coherence interferometry is presented. Spectrally filtering a part of the detected interference signal results in a high-coherence signal that encodes the scan imperfections a ...

2003

Fast and precise computation of discrete Fourier Transforms using cyclotomic integers

Mohammad Amin Shokrollahi

Many applications of fast fourier transforms (FFT's), such as computer- tomography, geophysical signal processing, high resolution imaging radars, and prediction filters, require high precision output. The usual method of fixed point computation of FFT's o ...

1997

Basefield transforms with the convolution property

Martin Vetterli

We present a general framework for constructing transforms in the field of the input which have a convolution-like property. The construction is carried out over the reals, but is shown to be valid over more general fields. We show that these basefield tra ...

1994

Fast Fourier transforms: A tutorial review and a state of the art

Martin Vetterli

The publication of the Cooley-Tukey fast Fourier transform (FIT) algorithm in 1965 has opened a new area in digital signal processing by reducing the order of complexity of some crucial computational tasks like Fourier transform and convolution from

N^2

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1990

Tomographie en cohérence optique dans le domaine de Fourier appliquée aux tissus humains

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Vectorial reconstruction of retinal blood flow in three dimensions measured with high resolution resonant Doppler Fourier domain optical coherence tomography

Adaptive optics using a liquid crystal spatial light modulator for ultrahigh-resolution optical coherence tomography

Insights into excited-state and isomerization dynamics of bacteriorhodopsin from ultrafast transient UV absorption

Innovative experimental concepts for optical coherence tomography

Low coherence digital holographic tomography

An optical fibre sensor for dynamic deformation measurements based on the intensity modulation of a low-coherence source

Self-referenced method for optical path difference calibration in low-coherence interferometry

Fast and precise computation of discrete Fourier Transforms using cyclotomic integers

Basefield transforms with the convolution property

Fast Fourier transforms: A tutorial review and a state of the art

Innovative experimental concepts for optical coherence tomography

Adaptive optics using a liquid crystal spatial light modulator for ultrahigh-resolution optical coherence tomography

Self-referenced method for optical path difference calibration in low-coherence interferometry

Fast and precise computation of discrete Fourier Transforms using cyclotomic integers

Basefield transforms with the convolution property

Vectorial reconstruction of retinal blood flow in three dimensions measured with high resolution resonant Doppler Fourier domain optical coherence tomography

Insights into excited-state and isomerization dynamics of bacteriorhodopsin from ultrafast transient UV absorption

An optical fibre sensor for dynamic deformation measurements based on the intensity modulation of a low-coherence source

Low coherence digital holographic tomography

Fast Fourier transforms: A tutorial review and a state of the art