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National Repository of Grey Literature 23 records found  beginprevious22 - 23  jump to record: Search took 0.09 seconds. 
Fabry-Perot displacement interferometry in air
 Šmíd, Radek ; Durand, M. ; Wang, Y. ; Lawall, J.
In earlier work, we have demonstrated the use of Fabry-Perot interferometry to measure displacements of up to 50 mm with a fractional accuracy of 4 x 10-10 in vacuum. The initial work was done at a wavelength of 633 nm, and the more recent work was done at 1560 nm. We now seek to extend the approach to displacement measurements in air. A well-known approach to compensate for the refractive index of air without relying on independent measurements of the temperature and pressure is to use two wavelengths. In this work, we supplement our implementation at 1560 nm with an additional laser at 1064 nm in order to control for the dispersion of air.
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Sensitivity of CdS photoresistors in ultraviolet spectrum and technology
 Franc, J. ; Novotný, Jan ; Jirásek, L. ; Petráň, S. ; Kliment, P.
Several groups of photoresistors based on thin film of evaporated CdS were prepared. Groups were distinguished in concentrations of acceptors (Cu) and donors (Cl) which were used in activation of layers. Each group was characterised by means of slope in visible range and by relative sensitivity in UVA region. Relative sensitivity in UVA region decreases when concentrations of activators increasee.
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National Repository of Grey Literature : 23 records found   beginprevious22 - 23  jump to record:
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