superlattice emitter
1Resonant tunnelling diode — A resonant tunnel diode (RTD) is a device which uses quantum effects to produce negative differential resistance (NDR). As an RTD is capable of generating a terahertz wave at room temperature, it can be used in ultra high speed circuitry.… …
2Liste elektrischer Bauelemente — Dieser Artikel listet elektrische beziehungsweise elektronische Bauelemente (auch Bauteile genannt) auf, die man für Schaltungen in der Elektrotechnik beziehungsweise Elektronik benötigt. Verschiedene elektronische Bauelemente Inhaltsverzeichnis …
3Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity. Computer scientist Manindra Agrawal of the… …
