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Search Publications by: Zeina J. Kubarych (Fed)

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Displaying 26 - 38 of 38

Experimental Study of the NaK (3 1PI) State

February 1, 1999
Author(s)
E Laub, J Huennekens, R K. Namiotka, Zeina J. Kubarych, I Prodan, J La civita, S Webb, I Mazsa
We report the results of an optical-optical double resonance experiment to determine the NaK (3 1PI) state potential energy curve. In the first step, a narrow band cw laser (PUMP) is tuned to line center of a particular 2(A) (1 SIGMA+)(v?, J?) 1(X) (1

Experimental Study of Caesium 6PJ+ 6PJ --> 7PJ? + 6S energy pooling collisions and modeling of the excited atom density in the presence of optical pumping and radiation trapping

July 5, 1997
Author(s)
F D. Tomasi, J Huennekens, Zeina J. Kubarych, A Allegrini, A Fioretti, P Verker, S Milosevic
An experimental study of caesium energy pooling collisions at thermal energies, has been carried out in a capillary cell using diode laser excitation. Use of the capillary cell minimizes the effects of radiation trapping, but nonetheless, such effects

Mass Metrology at NIST

April 23, 1997
Author(s)
Zeina J. Kubarych
The mission of the mass group of the Automated Production Technology Division at NIST is to maintain the mass unit, disseminate it to U.S. industry, government, and academia, and provide traceability to the International Prototype Kilogram. Efforts are

Energy-pooling collisions in cesium: 6P/sub J/+6P/sub J/ to 6S+(nl=7P,6D,8S,4F)

January 1, 1996
Author(s)
Zeina J. Kubarych, S Milosevic, A Allegrini, J Huennekens, R K. Namiotka
We report experimental rate coefficients for the energy-pooling collisions Cs(6P/sub 1/2/)+Cs(6P/sub 1/2/) to Cs(6S/sub 1/2/)+Cs(nl/sub J''/) and Cs(6P/sub 3/2/)+Cs(6P/sub 3/2/) to Cs(6S/sub 1/2/)+Cs(nl/sub J''/) where nl/sub J''/=7P/sub 1/2/, 7P/sub 3/2/

Laser focusing of atoms for nanostructure fabrication

January 1, 1996
Author(s)
J Mcclelland, Robert Celotta, Zeina J. Kubarych, R Gupta
Laser focusing of atoms has emerged as a viable form of nanofabrication. Structures are formed by focusing chromium atoms as they deposit onto a surface. The focusing occurs in a standing-wave laser field in one or two dimensions, resulting in arrays

Laser Focusing of Atoms for Nanostructure Fabrication

January 1, 1996
Author(s)
Jabez J. McClelland, R Gupta, Zeina J. Kubarych, Robert Celotta
Laser-focusing of atoms has emerged as a viable form of nanofabrication. Structures are formed by focusing chromium atoms as they deposit onto a surface. The focusing occurs in a standing-wave laser field in one or two dimensions, resulting in arrays

Measurement of the self-broadening rate coefficients of the cesium resonance lines

November 1, 1995
Author(s)
Zeina J. Kubarych, J Huennekens, R K. Namiotka, J Sagle
The self-broadening rate coefficients of the cesium D1 [62S1/2 - 62P1/2] and D2 [62S1/2 - 62P3/2] resonance lines are determined from the 62P1/2 --> 62D3/2, 62D3/2---> 72D3/2 and 62P3/2 --> 72D5/2 transition lineshapes, which are mapped out using single

Nanofabrication of a Two-Dimensional Array Using Laser-Focused Atomic Deposition

September 4, 1995
Author(s)
R Gupta, Jabez J. McClelland, Zeina J. Kubarych, Robert Celotta
Fabrication of a two-dimensional array of nanometer-scale chromium features on a silicon substrate by laser-focused atomic deposition is described. Features 13plus or minus}1 nm high and having a full-width at half maximum of 80plus or minus}10 nm are

Nanofabrication of a two-dimensional array using laser-focused atomic deposition

June 27, 1995
Author(s)
R Gupta, Robert Celotta, Zeina J. Kubarych, J Mcclelland
Fabrication of a two-dimensional array of nanometer-scale chromium features on a silicon substrate by laser-focused atomic deposition is described. Features 13? 1 nm high and having a full-width at half maximum of 80? 10 nm are fabricated in a square array