THz Electroluminescence from Si/SiGe Quantum Cascade Heterostructures

R. Bates, S. A. Lynch, D. J. Paul, Z. Ikonic, R. W. Kelsall, P. Harrison, D. J. Norris, A. C. Cullis, Donald D. Arnone, C. R. Pidgeon, P. Murzyn, A. Loudon

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


There is an increasingly strong interest in the development of sources that emit radiation in the 1-10 THz frequency range for a number of appli cations. These include medical imaging of skin cancer (Ref-1), dental imaging (Ref. 2), telecommunications, security scanning, gas sensing, astronomy, molecular spectroscopy, and the possible detection of biological agents [Ref. 3]. While a number of THz sources are available, there are at present no compact, efficient, cheap and practical high-power solid-state sources such as light emitting diodes (LEDs) or lasers. Silicon is an excellent candidate for such a THz source as it is an inherently low loss material at these frequencies. This is mainly due to the absence of polar optical phonon scattering. Furthermore, since over 97% of all microelectronics is presently silicon based, the realisation of a silicon-based emitter could potentially allow integration with conventional silicon-based microelectronics.
Original languageEnglish
Title of host publicationConference on Lasers and Electro-Optics
Subtitle of host publicationCLEO 2002
PublisherOSA - The Optical Society
ISBN (Print)1557527067
Publication statusPublished - 2002
Externally publishedYes
Event2022 Conference on Lasers and Electro-Optics - Long Beach, United States
Duration: 19 May 200222 May 2002


Conference2022 Conference on Lasers and Electro-Optics
Abbreviated titleCLEO 2002
Country/TerritoryUnited States
CityLong Beach


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