Terahertz optical sideband emission in self-assembled quantum dots

Sandall, IC ORCID: 0000-0003-3532-0373, 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-.

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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
Depositing User:	Symplectic Admin
Date Deposited:	27 Apr 2016 15:10
Last Modified:	15 Mar 2024 03:06
DOI:	10.1063/1.3429681
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3000897