TITLE

Modeling and fabrication of electrically tunable quantum dot intersubband devices

AUTHOR(S)
Wei Wu; Dey, Dibyendu; Memis, Omer G.; Mohseni, Hooman
PUB. DATE
May 2009
SOURCE
Applied Physics Letters;5/11/2009, Vol. 94 Issue 19, p193113
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We propose an idea of forming quantum dot intersubband transition devices based on lateral electrical confinement on quantum wells. Numerical simulations show that the energy level separation in the structure can be as large as about 50 meV, and with different electric field, the energy levels can be tuned. We also demonstrate the fabrication of a large number of field-induced quantum dots by our super lens lithography technique. We achieved uniform arrays of contacts that are about 200 nm using a conventional UV source of λ∼400 nm.
ACCESSION #
39785817

 

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