Browsing by Author "Mandelis, Andreas"
Now showing items 21-40 of 42
-
Conference Object
Photopyroelectric Pd-PVDF hydrogen sensor
Christofides, Constantinos; Mandelis, Andreas (Publ by IEEE, 1989)A novel hydrogen sensor made of thin, commercially available polyvinylidene difluoride (PVDF) pyroelectric film sputter-coated with palladium (Pd) is described. An infrared laser beam, produced by an infrared (ca. 800-nm) ...
-
Book
Photopyroelectric Solid State Sensor for Hydrogen Gas Trace Detection
Mandelis, Andreas; Christofides, Constantinos (1990)
-
Article
Photothermal Electrostatics of the Pd-Polyvinylidene Fluoride Photopyroelectric Hydrogen Gas Sensor
Mandelis, Andreas; Christofides, Constantinos (1991)A detailed photothermal electrostatic consideration of the Pd-pyroelectric junction H-2 sensor is presented. Experimental evidence is in agreement with the fundamental features of the theory, which supports two possible ...
-
Article
Photothermal Electrostatics of the Pd-PVDF Photopyroelectric Hydrogen Gas Sensor
Mandelis, Andreas; Christofides, Constantinos (1992)Abstract A detailed photothermal electrostatic consideration of the Pd-pyroelectric junction H 2 sensor is presented. Experimental evidence is in agreement with the fundamental features of the theory, which supports two ...
-
Article
Photothermal radiometric investigation of implanted silicon: The influence of dose and thermal annealing
Othonos, Andreas S.; Christofides, Constantinos; Mandelis, Andreas (1996)Photothermal radiometric measurements were performed on phosphorus implanted and annealed silicon wafers. Data were collected over modulation frequencies ranging between 0.1 and 100 kHz with the 488 nm Ar ion laser line ...
-
Article
Photothermal Reflectance Investigation of Implanted Silicon
IA Vitkin; Christofides, Constantinos; Mandelis, Andreas (1990)ABSTRACT Silicon films damaged by ion implantation have been examined using the Photothermal Reflectance (PTR) technique. Data are presented on the sensitivity of this method to the implant parameters such as dose and ...
-
Article
Photothermal Reflectance Investigation of Processed Silicon .2. Signal Generation and Lattice Temperature-Dependence in Ion-Implanted and Amorphous Thin-Layers
VITKIN, IA; Christofides, Constantinos; Mandelis, Andreas (1990)
-
Article
Photothermal reflectance investigation of processed silicon. I. Room-temperature study of the induced damage and of the annealing kinetics of defects in ion-implanted wafers
Christofides, Constantinos; Vitkin, I. A.; Mandelis, Andreas (1990)Silicon films damaged by ion implantation have been examined using the photothermal reflectance technique in the thermal wave regime (low-modulation frequencies, large laser beam spot sizes). Data are presented on the ...
-
Book
Physics, chemistry and technology of solid state gas sensor devices
Mandelis, Andreas; Christofides, Constantinos (Wiley, 1993)
-
Article
Physics, Chemistry, and Technology of Solid-state Gas Sensor
Mandelis, Andreas; Christofides, Constantinos (1994)
-
Article
A PILOT STUDY IN NON‐CONTACT LASER PHOTOTHERMAL ARCHAEOMETRY OF ANCIENT STATUARY PEDESTAL STONES FROM CYPRUS
Mandelis, Andreas; McALLISTER, K.; Christofides, Constantinos; Xenophontos, Christos A. (1995)
-
Article
Progress in Hydrogen Detection - a New Photopyroelectric Device
Christofides, Constantinos; Mandelis, Andreas (1991)In this short communication we would like to draw the attention of the hydrogen scientific community to the development of a new and inexpensive hydrogen detector able to operate through a broad range of low temperatures ...
-
Article
Quantitative Photopyroelectric Out-Of-Phase Spectroscopy of Amorphous-Silicon Thin-Films Deposited on Crystalline Silicon
Christofides, Constantinos; Mandelis, Andreas; ENGEL, A.; Bisson, M.; HARLING, G. (1991)A photopyroelectric spectrometer with real-time and(or) self-normalization capability was used for both conventional transmission and thermal-wave spectroscopic measurements of amorphous Si thin films, deposited on crystalline ...
-
Article
Single-Ended Infrared Photothermal Radiometric Measurement of Quantum Efficiency and Metastable Lifetime in Solid-State Laser Materials: The Case of Ruby (Cr3+: Al2O3)
Mandelis, Andreas; Munidasa, M.; Othonos, Andreas S. (1993)A new, simple, and self-consistent frequency-scanned photothermal radiometric (PTR) detection scheme was applied to the measurement of the metastable state de-excitation parameters of a ruby laser rod. From the extrema of ...
-
Article
Solid-State Sensors for Trace Hydrogen Gas-Detection
Christofides, Constantinos; Mandelis, Andreas (1990)
-
Article
Spectroscopy and analysis of radiative and nonradiative processes in Ti3+:Al2O3 crystals
Grinberg, M.; Mandelis, Andreas; Fjeldsted, K.; Othonos, Andreas S. (1993)Experimental spectroscopic and time-resolved luminescence measurements of the Ti3+:Al2O3 crystalline system have been performed. The absorption and fluorescence spectra obtained have led to a reconsideration of prevailing ...
-
Article
Study of the induced damage and of the annealing kinetics of defects in ion implanted silicon using the photothermal reflectance technique
IA Vitkin; Christofides, Constantinos; Mandelis, Andreas (1990)Abstract Study of the annealing kinetics of defects in ion implanted silicon using the photothermal reflectance technique has been performed. The strong influence of the implant dose and of the annealing temperature on the ...
-
Article
Surface Hydrogen-Palladium Studies using a New Photopyroelectric Detector
Mandelis, Andreas; Christofides, Constantinos (1990)
-
Article
Temperature effect on photothermal reflectance signal: application to ion implanted and amorphous silicon
Christofides, Constantinos; IA Vitkin; Mandelis, Andreas (1990)Abstract Photothermal reflectance study as a function of temperature of processed silicon (crystalline, ion-implanted, amorphous) has been performed for the first time. The influence of the substrate on the observed signal ...
-
Article
Thermoelectronic-wave coupling in laser photothermal theory of semiconductors at elevated temperatures
Mandelis, Andreas; Nestoros, Marios; Christofides, Constantinos (1997)A quantitative analysis of linear temperature-dependent coupled thermoelectronic diffusion waves in the generation of the laser-induced IR photothermal radiometric signal from a photoexcited, plasma-wave-dominated, ...