Terahertz optical sideband emission in self-assembled quantum dots



Sandall, IC, Porter, NE, Wagner, M, Schneider, H, Winnerl, S, Helm, M and Wilson, L
(2010) Terahertz optical sideband emission in self-assembled quantum dots. APPLIED PHYSICS LETTERS, 96 (20). 201105-.

[thumbnail of Sidebands final 230410.doc] Text
Sidebands final 230410.doc - Unspecified

Download (69kB)

Abstract

<jats:p>A multilayer quantum dot sample has been excited with a strong terahertz (THz) electric field and probed with a near-infrared (NIR) laser. First- and second-order THz optical sidebands are generated on the NIR probe beam by driving quantum dot intersublevel resonances with the THz fields. A conversion efficiency of 3×10−6 was obtained for the conversion of NIR power into sideband emission at 4 K, decreasing by a factor of 20 up to room temperature. The sideband emission wavelength can be tuned over ∼20 nm by selection of appropriate NIR and THz frequencies, due to the inhomogeneous broadening of the dot ensemble.</jats:p>

Item Type: Article
Uncontrolled Keywords: 51 Physical Sciences, 5108 Quantum Physics, 40 Engineering, 4018 Nanotechnology
Depositing User: Symplectic Admin
Date Deposited: 27 Apr 2016 15:10
Last Modified: 20 Jun 2024 23:01
DOI: 10.1063/1.3429681
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3000897