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Subpicosecond-time-domain reflectometry
Optics Letters, 1981We demonstrate a new method of optical time-domain reflectometry using subpicosecond pulses and nonlinear detection. The high-spatial-resolution ( approximately 15-microm) temporal resolution and sensitivity put new limits on the size and nature of defects that can be detected, localized, and analyzed in optical fibers.
J J, Fontaine +3 more
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Non destructive evaluation in the time domain
COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, 1999In this paper a method is presented for an efficient solution of the direct problem (find the scattered field for a given thin crack and driving field) in the time domain. This is a fundamental step in any non destructive evaluation problem. Two different approaches, one in the time domain and the other based on Fourier analysis, are used and compared ...
ALBANESE, Raffaele +3 more
openaire +3 more sources
Terahertz Time-Domain Spectroscopy for Material Characterization
Proceedings of the IEEE, 2007Mira Naftaly
exaly