Point contact readout for a quantum dot terahertz sensor
Artikel i vetenskaplig tidskrift, 2008

We introduce a terahertz radiation sensor in which the photon-induced ionization state of a quantum dot is monitored by a point contact formed in the same semiconductor heterostructure. For comparison we used a readout based on a single electron transistor coupled to the same quantum dot. The experiments prove functionality of the point contact-based device with additional practical advantage of a higher operation temperature up to 1.5 K and ease of nanofabrication




S. Pelling

R. Davis

L. Kulik

Alexander Tzalenchuk

Sergey Kubatkin

Chalmers, Mikroteknologi och nanovetenskap, Kvantkomponentfysik

T. Ueda

S. Komiyama

V. Antonov

Applied Physics Letters

0003-6951 (ISSN) 1077-3118 (eISSN)

Vol. 93 7 073501-


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