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Optical coherence correlation spectroscopy (OCCS)

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Optical Coherence Correlation Spectroscopy (OCCS)

Theo Lasser, Christophe Pache, Marcel Leutenegger, Arno Pino Bouwens, Stefan Geissbühler, Akihiro Sato, Stéphane Broillet

A classical technique to monitor dynamical processes at the molecular level is fluorescence correlation spectroscopy (FCS). FCS requires fluorescent labels that are typically limited by photobleaching and saturation. We present a new method that uses noble ...

2012

Thresholding-based reconstruction of compressed correlated signals

Pascal Frossard, Alhussein Fawzi, Tamara Tosic

We consider the problem of recovering a set of correlated signals (\emph{e.g.,} images from different viewpoints) from a few linear measurements per signal. We assume that each sensor in a network acquires a compressed signal in the form of linear measurem ...

2012

Automatic Time Skew Detection and Correction

Danil Korchagin

In this paper, we propose a new approach for the automatic time skew detection and correction for multisource audiovisual data, recorded by different cameras/recorders during the same event. All recorded data are successfully tested for potential time skew ...

2011

We propose a simple reflection measurement setup and a motion evaluation procedure based on a two dimensional recording of subsequent speckle images. The averaging of cross correlation functions is used to measure displacements. We demonstrate experimental ...

European Optical Society2010

Life-times of long-lived coherences under different motional regimes

Geoffrey Bodenhausen, Aurélien Bornet, Riddhiman Sarkar

The transverse relaxation rate R-2 of single quantum coherences, the relaxation rate R-LLC of long-lived coherences (LLC), and the ratio R-2/R-LLC have been studied by experiment, simulation and theory in the two-spin system formed by the Glycine aliphatic ...

2010

Idiap2010

Memoirs of Togetherness from Audio Logs

Danil Korchagin

In this paper, we propose a new concept how tempo-social information about moments of togetherness within a social group of people can be retrieved in the palm of the hand from social context. The social context is digitised by audio logging of the same us ...

2009

Memoirs of Togetherness from Audio Logs

Danil Korchagin

Idiap2009

Simultaneous Multicolor Fluorescence Cross-Correlation Spectroscopy to Detect Higher Order Molecular Interactions Using Single Wavelength Laser Excitation

Theo Lasser

Fluorescence cross-correlation spectroscopy is a powerful method for the study of molecular interactions and dynamics in solution and even in living cells. Usually, in the optical setup, either two laser beams have to be superimposed in their respective co ...

2006

Evidence of Slow Motions by Cross-Correlated Chemical Shift Modulation in Deuterated and Protonated Proteins

Geoffrey Bodenhausen, Julien Wist, Chiara Perazzolo

Cross-correlated fluctuations of isotropic chem. shifts can provide evidence for slow motions in biomols. Slow side-chain dynamics have been investigated in 15N and 13C enriched ubiquitin by monitoring the relaxation of Ca-Cb two-spin coherences (Frueh et ...

Springer, Kluwer Academic Publishers2004