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Liquid crystal on silicon (LCOS) combines two very well-known technologies, namely the IC/CMOS and the liquid crystal (LC) technologies. As both of these are very mature, it is obvious that LCOS has a huge potential for very high-end applications, more than any other (projection) technology. The aim of the FORK project is the development of a LCOS microdisplay device for very diverse applications...
A method is presented that allows the determination of the carrier density in semiconductor lasers above and below threshold. This method is based on a line shape analysis of the spontaneous emission. Corresponding gain values can be calculated from the carrier density. Temperature dependent measurements of the spontaneous emission and the differential quantum efficiency allow the determination of...
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