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Bias mediated tuning of the detection wavelength in asymmetrical quantum dots-in-a-well infrared photodetectors
Acreo AB.
Linköping University.
Högskolan i Halmstad, Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE), Halmstad Embedded and Intelligent Systems Research (EIS), Tillämpad matematik och fysik (CAMP).ORCID-id: 0000-0001-5027-1456
IRnova.
Vise andre og tillknytning
2008 (engelsk)Inngår i: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 93, nr 20, s. 203512-Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Bias-mediated tuning of the detection wavelength within the infrared wavelength region is demonstrated for quantum dots-in-a-well and dots-on-a-well infrared photodetectors. By positioning the InAs quantum dot layer asymmetrically in an 8 nm wide In0.15Ga0.85As/GaAs quantum well, a shift in the peak detection wavelength from 8.4 to 10.3 μm was observed when reversing the polarity of the applied bias. For a dots-on-a-well structure, the peak detection wavelength was tuned from 5.4 to 8 μm with small changes in the applied bias. These tuning properties could be essential for applications such as modulators and dual-color infrared detection.

sted, utgiver, år, opplag, sider
New York: American Institute of Physics (AIP), 2008. Vol. 93, nr 20, s. 203512-
Emneord [en]
SEMICONDUCTORS, QUANTUM dots, QUANTUM electronics, ELECTRON optics, QUANTUM wells
HSV kategori
Identifikatorer
URN: urn:nbn:se:hh:diva-3417DOI: 10.1063/1.3033169ISI: 000261141400082Scopus ID: 2-s2.0-56849112773OAI: oai:DiVA.org:hh-3417DiVA, id: diva2:295210
Tilgjengelig fra: 2010-02-17 Laget: 2009-12-01 Sist oppdatert: 2018-04-03bibliografisk kontrollert

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