Few biological molecules are available in quantities, 200–400mg, that are required for quasi-elastic neutron scattering analysis. We show that the time correlation function of molecular motions can be extracted with much less material using only the strong scattering intensity at zero energy transfer. The time axis is introduced by varying the width of the instrumental resolution function, whic...

We demonstrate steady-state focusing of coherent light through dynamic scattering media. The phase of an incident beam is controlled both spatially and temporally using a reflective, 1020-segment MEMS spatial light modulator, using a coordinate descent optimization technique. We achieve focal intensity enhancement of between 5 and 400 for dynamic media with speckle decorrelation time constants ...

We demonstrate a technique, named dual structured laser illumination planar imaging (SLIPI), capable of acquiring depth-resolved images of the extinction coefficient. This is achieved by first suppressing the multiply scattered light intensity and then measuring the intensity reduction caused by signal attenuation between two laser sheets separated by Δz mm. Unlike other methods also able to me...

Electron momentum spectroscopy (an (e, 2e) experiment in the high-energy and large momentum transfer limit) is a scattering approach to the study of the electronic structure. The intensity observed in these experiment is, for an infinitely thin film, simply proportional to the spectral momentum density. For experiments using free-standing films of a more realistic thickness (100 Å or so), elast...

Previous systems for measuring cross-correlated light scattering by small particles suspended in a liquid with multiple-scattering suppression have illuminated the particles with two laser beams. It is shown that multiple-scattering suppression should also occur in cross correlation for a system that employs a single laser beam and two closely spaced detectors with wide fields of view. The sing...

A central goal of neuroscience is to understand how groups of neurons interact to give rise to the myriad functions of the nervous system. This task is extremely difficult in part because of the technical challenge of recording the electrical activity of many neurons simultaneously without disturbing their environment. Although several methods exist, new techniques are in strong demand. One pro...

Small angle scatterings of X-rays by interstellar dust particles create halos around x-ray sources. The halo intensity and its projected radial distribution around a source can provide important information on the spatial distribution of the dust along the line of sight to the source, and on the physical properties of the scattering dust particles. Halos around x-ray point sources have been use...

The propagation of light in disordered media, including clouds, colloidal suspensions, and biological tissues, is generally considered within the framework of classical optics [1]. However, recent experiments have demonstrated the existence of novel effects in multiple light scattering, in which the quantized nature of the electromagnetic field is manifest. These include (i) the transport of qu...