1 / 9

Opportunities in Soft Matter Research at NSLS II

Opportunities in Soft Matter Research at NSLS II. Micro-SAXS experiments X-ray Photon Correlation Spectroscopy New Things with Coherence. GISAXS from Polymer Brushes on Micromechanical Cantilevers.

edward
Télécharger la présentation

Opportunities in Soft Matter Research at NSLS II

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Opportunities in Soft Matter Research at NSLS II Micro-SAXS experiments X-ray Photon Correlation Spectroscopy New Things with Coherence

  2. GISAXS from Polymer Brushes on Micromechanical Cantilevers Investigation of micromechanical cantilever sensors with microfocus grazing incidence small-angle x-ray scatteringMarkus Wolkenhauer, Gina-Gabriela Bumbu, and Yajun ChengMax Planck Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, GermanyStephan V. RothHASYLAB at DESY, Notkestr. 85, D-22603 Hamburg, GermanyJochen S. GutmannMax Planck Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany and Institute for Physical Chemistry, Johannes Gutenberg University, Jakob-Welder-Weg 10, D-55099 Mainz, Germany

  3. Micro-SAXS of Feather Microstructure: What Makes Blue Jays Blue? New Metamaterials Prum, R. O., Torres, R. H., Williamson, S., and Dyck, J. 1998. Coherent light scattering by blue bird feather barbs. Nature 396: 28-29.

  4. Chromatin Structure: A Grand Challenge for Structural Biology

  5. X-ray Photon Correlation Spectroscopy for the Dynamics of Soft Matter Pop quiz: Which is the liquid? Which is the glass?

  6. X-ray Photon Correlation Spectroscopy for the Dynamics of Soft Matter (cont.)

  7. Higher-Order Correlation Functions Under coherent illumination, x-rays give I(Q,t) not <I(Q,t)>

  8. Higher-Order Correlation Functions (cont.) For non-Gaussian processes, such as those showing intermittent dynamics, as expected near a glass transition, there’s extra information in higher order correlation functions e.g. G4=<I(0)I(t1)I(t2)I(t3)>

  9. Heterodyne Near-Field Speckle: A Superior Method for USAXS and USAXPCS Space Intensity Correlations in the Near Field of the Scattered Light: A Direct Measurement of the Density Correlation Function g(r)M. Giglio, M. Carpineti, and A. VailatiDipartimento di Fisica and Istituto Nazionale per la Fisica della Materia, Università di Milano, via Celoria 16, 20133 Milano, Italy

More Related