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Displaying 46326 - 46350 of 143793

Small-sized dichroic atomic vapor laser lock

April 21, 2011
Author(s)
Svenja A. Knappe, Changmin Lee, Geoffrey Z. Iwata, Eric Corsini, James M. Higbie, Micah P. Ledbetter, Dimitry Budkerl
Two, lightweight diode laser frequency stabilization systems designed for experiments in the field are described. Similar to a previous design, magnetic-field lines are contained within a magnetic shield enclosing permanent magnets and Rb cells, so that this

Spatial separation in a thermal mixture of ultracold174Yb and 87Rb atoms

April 21, 2011
Author(s)
F. Baumer, F. Munchow, A. Gorlitz, Stephen Maxwell, Paul S. Julienne, Eite Tiesinga
We report on the observation of unusually strong interactions in a thermal mixture of ultracold atoms which cause a significant modification of the spatial distribution. A mixture of 87Rb and 174Yb with a temperature of a few μK is prepared in a hybrid

Optical illumination optimization for patterned defect inspection

April 20, 2011
Author(s)
Bryan M. Barnes, Richard Quintanilha, Martin Y. Sohn, Hui Zhou, Richard M. Silver
Rapidly decreasing critical dimensions (CD) for semiconductor devices drive the study of improved methods for the detection of defects within patterned areas. As reduced CDs are being achieved through directional patterning, additional constraints and

Stable Single-Crystalline Body Centered Cubic Fe Nanoparticles

April 20, 2011
Author(s)
Natalie F. Huls, Lise-Marie Lacroix, Don Ho, Xiaolian Sun, Shouheng Sun
Air stable magnetic nanoparticles (MNPs) with high magnetization are required in order to fully realize optimized biomedical agents. However, only metallic NPs with good crystallinity such as Fe or FeCo, exhibit magnetization as high as 220 A.m.kg. Their

Strain-Based Temperature Memory Effect for Nafion(R) and Its Molecular Origins

April 20, 2011
Author(s)
Kirt A. Page, Scott Eastman, Tao Xie
A shape memory polymer traditionally refers to a polymer that can memorize one temporary shape and recover to its permanent shape upon exposure to an external stimulus. Although this basic concept has been known for at least half a century, recent advances

Landau Levels and Band Bending in Few-Layer Epitaxial Graphene

April 18, 2011
Author(s)
Hongki Min, Shaffique Adam, Young J. Song, Joseph A. Stroscio, Mark D. Stiles, Allan H. MacDonald
The carrier density distributions in few-layer-graphene systems grown on the carbon face of silicon carbide can be radically altered by the presence of a Scanning Tunneling Microscope (STM) tip used to probe top-layer electronic properties, and by a
Displaying 46326 - 46350 of 143793
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