Manipulating terahertz photons on a quantum Hall effect device

An on-chip terahertz measurement has been performed to investigate photon generation due to electrons injected by quantum Hall edge channels. In this device configuration, terahertz waves emitted from a quantum Hall effect device are transmitted to a quantum-dot single photon detector (fabricated on...

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Bibliographic Details
Published inPhysica. E, Low-dimensional systems & nanostructures Vol. 42; no. 4; pp. 1034 - 1037
Main Authors Ikushima, K., Asaoka, D., Komiyama, S., Ueda, T., Hirakawa, K.
Format Journal Article Conference Proceeding
LanguageEnglish
Published Amsterdam Elsevier B.V 01.02.2010
Elsevier
Subjects
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Optics
Physics
Quantum description of interaction of light and matter; related experiments
Quantum dot
Quantum Hall effect
Quantum optics
Terahertz emission
Terahertz emission
Quantum dot
Quantum Hall effect
THz range
Hall effect devices
Quantum dots
Experimental device
Landau levels
Photon emission
Charge carrier injection
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Summary:An on-chip terahertz measurement has been performed to investigate photon generation due to electrons injected by quantum Hall edge channels. In this device configuration, terahertz waves emitted from a quantum Hall effect device are transmitted to a quantum-dot single photon detector (fabricated on the same chip) via a coplanar waveguide. Photon generation is found on the confluence of unequally populated edge channels when the source–drain voltage reaches a level of Landau-level energy spacing.
ISSN:1386-9477
1873-1759
DOI:10.1016/j.physe.2009.11.136