Browsing by Subject "Light reflection"

Article

Experimental determination of the absolute temperature modulation in photothermal microscopy of Y1Ba2Cu3O7 crystals

Studenmund, W. R.; Fishman, I. M.; Kino, G. S.; Giapintzakis, John (1997)

We present a technique to experimentally determine the value of the temperature perturbation ST in photothermal microscopy. Knowledge of δT is necessary for proper analysis of the differential optical reflectivity (∂R/∂T) ...

Article

Optical response of thin supported palladium films to hydrogen: Non-destructive testing for hydrogen detection

Christofides, Constantinos; Kalli, Kyriacos; Othonos, Andreas S. (1999)

The properties of thin palladium films on silicon dioxide/silicon substrates are investigated. As the electrical properties of very thin palladium films cannot be measured, due to highly discontinuous nature of the films ...

Article

Phase shifted Bragg gratings formed in optical fibres by post-fabrication thermal processing

Uttamchandani, D.; Othonos, Andreas S. (1996)

Fibre Bragg gratings have been post-fabrication processed using localised heat treatment, with significant changes to their transmission and reflection characteristics being observed. Experimental results of the spectral ...

Article

Simulation and implementation of lightwave component characterization using a bilateral electro-optic network

Elamaran, B.; Pollard, R. D.; Iezekiel, Stavros (1997)

Article

Superimposed multiple Bragg gratings

Othonos, Andreas S.; Lee, X.; Measures, R. M. (1994)

The authors demonstrate the inscription of seven Bragg gratings at the same location on a photosensitive fibre. These superimposed Bragg gratings were written over a 60nm span in the region of 1530nm with reflectivities ...