L E Vorobjev et al 2001 Nanotechnology 12 462 doi:10.1088/0957-4484/12/4/316
L E Vorobjev1, S N Danilov1, A V Gluhovskoy1, V L Zerova1, E A Zibik1, V Yu Panevin1, D A Firsov1, V A Shalygin1, A D Andreev2, B V Volovik2, A E Zhukov2, N N Ledentsov2, D A Livshits2, V M Ustinov2, Yu M Shernyakov2, A F Tsatsulnikov2, A Weber3, M Grundmann3, S R Schmidt4, A Seilmeier4, E Towe5 and D Pal5
Show affiliationsOptical phenomena in the mid-infrared range connected with interlevel and intersubband charge-carrier transitions in quantum dot and quantum well (QW) heterostructures under optical and electrical pumping were investigated. Spectra of interband photoluminescence are also presented. The existence of a metastable level in funnel-shaped QWs is experimentally confirmed. The intersubband transition dynamics in asymmetrical pairs of tunnel-coupled QWs was studied by means of pump-and-probe time-resolved spectroscopy.
This paper was presented at the 3rd Russian Workshop on Nanophotonics, Nizhnii Novgorod, Russia, 26-29 March 2001.
Issue 4 (December 2001)
Received 24 July 2001, in final form 4 October 2001
Published 27 November 2001
L E Vorobjev et al 2001 Nanotechnology 12 462
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