Thermoreflectance in germanium

The thermoreflectance spectra in the region of a critical point have been calculated for the four types of critical points. The results are in good agreement with the experimental line shapes obtained for germanium. © 1967.SCOPUS: ar.jinfo:eu-repo/semantics/publishe

Thermoréflectivité du germanium

Doctorat en Sciencesinfo:eu-repo/semantics/nonPublishe

Reflectance modulation at a germanium surface

By passing a periodically interrupted current through a germanium sample, modulation of the spectral reflectance at the surface has been observed. A complex spectrum results which includes structures related to interband transitions at critical points. Interference effects produced by the surface barrier layer could account for the appearance of fringes in the transparent region. © 1966.SCOPUS: ar.jinfo:eu-repo/semantics/publishe

A differential reflectometer for spatial modulation spectroscopy

A simple double beam reflectometer is described in which the reference and the perturbed beams have optical paths exactly equivalent in principle. Results of experiments illustrating its range of use and its performance are given.SCOPUS: ar.jinfo:eu-repo/semantics/publishe

Physique des dispositifs à semiconducteurs

info:eu-repo/semantics/publishe

Another wavelength modulated reflectometer

Describes a wide range, double beam, wavelength modulated spectrometer free of background spectrum down to a logarithmic derivative of 10-4 nm-1. An optical switch has been designed such that the sample and reference beams hit the detector in the same spot and at the same angle. The sample signal is extracted in two steps: with a simple subtracting system and with a feedback loop acting on the slit function of the monochromator.SCOPUS: ar.jinfo:eu-repo/semantics/publishe