Opportunities in Soft Matter Research at NSLS II 1.Micro-SAXS experiments 2.X-ray Photon Correlation Spectroscopy 3.New Things with Coherence

Investigation of micromechanical cantilever sensors with microfocus grazing incidence small- angle x-ray scatteringMarkus Wolkenhauer, Gina-Gabriela Bumbu, and Yajun Cheng Max Planck Institute for Polymer Research, Ackermannweg 10, D Mainz, Germany Stephan V. Roth HASYLAB at DESY, Notkestr. 85, D Hamburg, Germany Jochen S. Gutmann Max Planck Institute for Polymer Research, Ackermannweg 10, D Mainz, Germany and Institute for Physical Chemistry, Johannes Gutenberg University, Jakob-Welder-Weg 10, D Mainz, GermanyMarkus Wolkenhauer Gina-Gabriela Bumbu Yajun Cheng Stephan V. Roth Jochen S. Gutmann GISAXS from Polymer Brushes on Micromechanical Cantilevers

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

Chromatin Structure: A Grand Challenge for Structural Biology

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

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

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

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. G 4 =

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. Vailati Dipartimento di Fisica and Istituto Nazionale per la Fisica della Materia, Università di Milano, via Celoria 16, Milano, Italy M. Giglio M. Carpineti A. Vailati