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Displaying 49451 - 49475 of 74348

Real-Time Displacement Measurements With a Fabry-Perot Cavity and a Diode Laser

January 1, 2000
Author(s)
Lowell P. Howard, Jack A. Stone Jr.
We present the basic operating principles of a traceable measurement system for use with scanned probe microscopes and nanometer-resolution displacement sensors. Our method is based upon a tunable external-cavity diode laser system which is Pound-Drever

Recent Progress in Nanoscale Indentation of Polymers Using the AFM

January 1, 2000
Author(s)
Mark R. VanLandingham, John S. Villarrubia, G Meyers
Regardless of the type of test, reliable indentation measurements require knowledge of the shape of the indenter tip. For indentation measurements involving sub-micrometer scale contacts, accurate knowledge of the tip shape can be difficult to achieve. In

Reduced Gravity Combustion of Thermoplastic Spheres

January 1, 2000
Author(s)
Jiann C. Yang, Anthony P. Hamins, Michelle K. Donnelly
A series of low-gravity experiments were conducted to investigate the combustion of supported thermoplastic polymer spheres under varying ambient conditions. The three types of thermoplastics investigated were polymethyl methacrylate (PMMA), polypropylene

Rotational Signatures of Chemical Agents and Related Compounds

January 1, 2000
Author(s)
R D. Suenram, Angela R. Hight Walker, Gerald T. Fraser, David F. Plusquellic, R S. DaBell, Pamela M. Chu, George C. Rhoderick, A C. Samuels, J O. Jensen, Pavol Krivosik, J M. Lochner
The rotational spectra of more than twenty different chemical-warfare agents, precursors, and decomposition products have been studied using the technique of Fourier-Transform MicroWave (FTMW) spectroscopy. The compounds studied include the four common G

Scalable Entanglement of Trapped Ions

January 1, 2000
Author(s)
C Monroe, Q A. Turchette, D Kielpinski, B E. King, V Meyer, Wayne M. Itano, David J. Wineland, C J. Myatt, M A. Rowe, Christopher Langer, C A. Sackett
Entangled states are both a crucial component in quantum computers, and of great interest in their own right, highlighting the inherent nonlocality of quantum mechanics. As part of the drive toward larger entangled states for quantum computing, we have
Displaying 49451 - 49475 of 74348
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