Biography

Charles W. Bruce is Research Professor at the Physics Dept., New Mexico State University. He received a B.A. in Physics from Union College, Schenectady in 1959 and both Masters and Ph.D. degrees in Physics from New Mexico State University (1968 and 1970). His initial research was in laser induced plasmas and development of pulsed laser instrumentation at Kirtland AF Base in the early 1960s. From 1971 to 1995 he was employed at the US Army Atmospheric Sciences Laboratory. From 1984 to the present he has also been a College Professor at the Physics Dept. at NMSU (initially through the Intergovernmental Personnel Act (IPA)). Other research areas have been b) radio frequency excited low density plasmas, c) air contamination research on both sides of the USA-Mexico border and d) molecular and particulate spectroscopy with current emphasis on electromagnetic interactions with specific particulate shapes and materials across the spectrum. Each of these efforts have produced publications. A number of new techniques are described in publications and patents.

Publications:

Contrast reductions due to sun scattering and transmittance for detection of objects through a local scattering cloud – May 2019

Optical extinction efficiencies for metallic single wall carbon nanotubes in the infrared spectral region – Dec 2018

Abstract: The extinction efficiency (mass normalized extinction cross section) of a sample of metallic single wall carbon nanotubes (SWCNTs) has been measured in the infrared spectral region. The tubes were obtained from Nano-Integris Inc. and measured while suspended in propanol. Calculation of the extinction efficiency based on a computational code for fibers of finite length shows good agreement with the experimental results. The computation involved convolution over the SWCNTs’ length and diameter distributions. The results emphasize the potential of SWCNTs as efficient obscurants of electromagnetic radiation in the infrared spectral region.

Extinction efficiencies for metallic fibers in the infrared (vol 48, pg 5095, 2009) – Dec 2015

Abstract: In this erratum, a correction of a previously computed extinction spectrum of a sample of silver fibers in the infrared [Appl. Opt. 48, 5095 (2009)] is reported. The spectrum was inaccurately computed through use of an approximation relating the E-field aligned values to those of the orientationally averaged extinction efficiency. This approximation is very close for spectral points in the vicinity of the primary resonance but not necessarily for those well away from this resonance. Here, the exact theory has been used to produce the spectra. (C) 2015 Optical Society of America

More articles and publications can be found here.