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Physics

Spectroscopy

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Displaying 901 - 925 of 927

Vibrationally-Resolved Sum-Frequency Generation With Broad Bandwidth Infrared Pulses

October 15, 1998
Author(s)
Lee J. Richter, T Petralli-Mallow, John C. Stephenson
We present a novel procedure for vibrationally-resolved sum-frequency generation (SFG) in which a broad-bandwidth IR pulse is mixed with a narrow-bandwidth visible pulse. The resultant SFG spectrum is dispersed with a spectrograph and detected in parallel

Exploration of the Structural Environment of the Iron-Sulfur Cluster in Putidaredoxin by Nitrogen-15 NMR Spectroscopy of Selectively Labeled Cysteine Residues

August 28, 1998
Author(s)
Fahriye N. Sari, Marcia J. Holden, M P. Mayhew, V L. Vilker, B Coxon
Putidaredoxin is a di-iron protein whose paramagnetic region is not well characterized by 1H detected NMR. We have studied the structure of this region in greater detail by directly observed 15N NMR of oxidized and reduced putidaredoxin preparations in

Critically Assessed Tables of Atomic Spectroscopy Data

November 30, 1997
Author(s)
Wolfgang L. Wiese
The major NIST atomic spectroscopy data tables and the new NIST atomic spectra database (ASD) on the Internet are briefly reviewed. The need for critical assessments of atomic transition probabilities data is discussed, and the still unsatisfactory data

Vacuum-ultraviolet spectral-irradiance calibrations: method and applications

May 1, 1980
Author(s)
William R. Ott, John M. Bridges, J Klose
A method to determine the spectral irradiance of a radiation source in the vacuum ultraviolet through the use of recently developed spectral-radiance standards is described. The method has been applied between 138 and 310 nm, and the spectral irradiances
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