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Semiconductor physics:Fundamentals

Module :	Semiconductor sensors and applications
Author(s) :	-
Date of creation :	non renseignée
Resume:	In the first part of this course, simple models of intrinsic and doped semiconductors are presented. These models, which describe the evolution of electronic populations, can then be used to understand more complex electronic devices. In a second part, the PN junction (the juxtapostion of two pieces of the same semiconductor, one with a P-type doping and the other with a N-type doping) is studied more in detail. This simple structure represents the building block from which it is possible to make most semiconductor-based devices, such as diodes, transistors, photodiodes, light-emitting diodes, or laser diodes.
Language(s) :	English

Specific applications of sensors for photonic and imaging

Module :	Semiconductor sensors and applications
Author(s) :	-
Date of creation :	septembre 2007
Resume:	Once an object is placed in the beam of a laser diode, a part of the beam reflected by the latter is retro-injected in the active cavity of the diode and disrupts the physical properties of it. This disruption which is shown principally by a modification of the frequency of the emission power of the diode is known as the phenomenon of “self-mixing” Long considered as a parasitic phenomenon, notably in telecommunication by optical fibres, we will present its exploitation for metrological ends, such as the measurement of speed, of displacements, and of distances.
Language(s) :	English

Design of optoelectronic sensors

Module :	Semiconductor sensors and applications
Author(s) :	-
Date of creation :	non renseignée
Resume:	This lesson aims at giving basic elements of optronic captors conception. First, we remind the main applications of optronics ; the steps to follow to conceive such systems and the big family of captors. Then we describe the most useful notions of radiometry and propagation to calculate the optical signal received by the detector. Finally, we end the calculation of the noise signal report, and the evaluation of such captors, under the form of an energetic assessment.
Language(s) :	English

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