R. Kelsall, Z. Ikonić, P. Harrison, S. Lynch, R. Bates, D. Paul, D. Norris, S. Liew, A. Cullis, D. Robbins, P. Murzyn, C. Pidgeon, D. D Arnone
{"title":"Terahertz intersubband emission from silicon-germanium quantum cascades","authors":"R. Kelsall, Z. Ikonić, P. Harrison, S. Lynch, R. Bates, D. Paul, D. Norris, S. Liew, A. Cullis, D. Robbins, P. Murzyn, C. Pidgeon, D. D Arnone","doi":"10.1109/THZ.2002.1037575","DOIUrl":null,"url":null,"abstract":"Terahertz electroluminescence due to light hole-heavy hole intersubband transitions in p-type Si/SiGe quantum cascade structures has been observed in both surface-normal and edge emission geometries. THz output powers of up to 50 nW have been observed for surface emission from 100 period Si/sub 0.76/Ge/sub 0.24//Si heterostructures grown on a Si/sub 0.8/Ge/sub 0.2/ relaxed buffer or 'virtual substrate'.","PeriodicalId":143116,"journal":{"name":"Proceedings, IEEE Tenth International Conference on Terahertz Electronics","volume":"78 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2002-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings, IEEE Tenth International Conference on Terahertz Electronics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/THZ.2002.1037575","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
Terahertz electroluminescence due to light hole-heavy hole intersubband transitions in p-type Si/SiGe quantum cascade structures has been observed in both surface-normal and edge emission geometries. THz output powers of up to 50 nW have been observed for surface emission from 100 period Si/sub 0.76/Ge/sub 0.24//Si heterostructures grown on a Si/sub 0.8/Ge/sub 0.2/ relaxed buffer or 'virtual substrate'.