Zobrazeno 1 - 10
of 12
pro vyhledávání: '"James R. Birch"'
Autor:
T. Nakano, G. J. Simonis, U. Stumper, F. Koniger, J. M. Dutta, W. Richter, R. Heidinger, R. N. Clarke, A. Hadni, W.W. Ho, R.S. Vigil, James R. Birch, R.L. Moore, M.R. Stead, T.B. Wells, C.R. Jones, H. Matsuo, W.F. Hall, X. Gerbaux, H. M. Frost, Mohammed N. Afsar, K. Sakai
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 42:956-965
The results of a measurement intercomparison aimed at assessing the systematic errors in near-millimetre-wavelength dielectric measurements on reasonably transparent solid specimens are presented and discussed. Various monochromatic, broad band, guid
Publikováno v:
Proceedings of the IEEE. 74:183-199
This review covers approximately 15 years of development in the techniques used to measure dielectric properties of materials over the frequency range 1 MHz to 1500 GHz. An introductory section summarizes the broad development trends and is followed
Autor:
James R. Birch
Publikováno v:
Mikrochimica Acta. 93:105-122
A review is presented of recent developments in the methods of dispersive Fourier transform spectroscopy that have demonstrated the unique value of this broad band method for determining the optical constants of gases, liquids and solids.
Publikováno v:
Journal of Physics D: Applied Physics. 8:1353-1358
The optical constants of ordinary soda-lime-silica glasses in their region of intense submillimetre wavelength opacity have been measured from 0.29 to 4000 cm-1 at 293K using microwave cavity techniques, dispersive Fourier transform spectrometry and
Autor:
Paul Quincey, James R. Birch, Dennis G. Moss, James S. Elder, Elizabeth A. Baker, Aniruddha Mukherjee
Publikováno v:
Mikrochimica Acta. 95:299-302
A near millimetre wavelength radiometer has been constructed, based on a rapid scan polarising interferometer. The design and procedure are described, and some results are presented.
Autor:
James R. Birch, Gerald O. Plumb, Francis L. Pratt, Richard Jefferies, Andrew C. Nichol, William Hayes
Publikováno v:
Mikrochimica Acta. 95:295-298
The construction of an interferometer for the study of solids by Fourier transform spectroscopy to wave numbers below 1.5 cm−1 is described. It is based on a polarising wire grid configuration and has better performance than more typical instrument
Publikováno v:
Military Medicine. 136:691-693
Autor:
George J. Simonis, James R. Birch
Publikováno v:
SPIE Proceedings.
The National Physical Laboratory and Harry Diamond Laboratories have organized and are conducting an international sample exchange of materials to compare near-millimeter-wave (NMMW) characterizations made by different laboratories on exactly the sam
Publikováno v:
Proceedings in Life Sciences ISBN: 9783642691881
We report measurements on the electrical absorption and dispersion of proteins, polysaccharides and their constituent aminoacids and saccharides, both at very low frequencies (υ = 10−3 − 106 Hz) and in the submillimetre and far infra-red \( (\ti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::103369e8a7b8c7caf3f9678fe4cbe061
https://doi.org/10.1007/978-3-642-69186-7_8
https://doi.org/10.1007/978-3-642-69186-7_8
Autor:
James R. Birch
Publikováno v:
SPIE Proceedings.
A model is presented for the spectral degradation introduced into Fourier transform spectroscopy by imperfect optical figure. It allows tolerances to be defined for the figure of the optics if a required level of performance is to be achieved. It con