Search for dissertations about: "bolometric mixer"
Found 3 swedish dissertations containing the words bolometric mixer.
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1. NbN Hot Electron Bolometric Mixers for a Quasi--Optical THz Receiver
Abstract : Experimental work on the development of a quasi-optical heterodyne receiver for the THz frequency range is reported. The mixing device is a superconducting hot electron bolometer (HEB) made from ultrathin, d = 3 - 5 nm, niobium nitride (NbN) films. READ MORE
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2. Picosecond Infrared Detection and Optical Mixing in YBa2Cu3O7-δ Thin Films
Abstract : Studies of infrared photoresponse in high Tc superconducting YBa2Cu3O7-.delta. (YBCO) thin films are presented in this dissertation. READ MORE
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3. Ultra-thin Niobium Nitride Films for Hot Electron Bolometer and THz Applications
Abstract : The part of the electromagnetic spectrum between microwaves and infrared, also known as the terahertz band, is of particular interest for radio astronomy. The radiation intensity of the cold universe peaks at this frequency band, thus defining the demand on sensitive low-noise instruments in this particular frequency range. READ MORE