Bidirectional wavelength tuning of semiconductor quantum dots as artificial atoms in an optical resonator

2007/12/23 by Stefan Mendach, Mendach, S., Suwit Kiravittaya +9
Engineering · Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #FOS: Physical sciences #Other Condensed Matter (cond-mat.other) #Photonic and Optical Devices #Quantum optics and atomic interactions

paper · pdf · doi:10.48550/arxiv.0712.3927

openalex publication_date 2007/12/23 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We consider a pair of artificial atoms with different ground state energies. By means of finite element calculations we predict that the ground state energies can be tuned into resonance if the artificial atoms are placed into a flexible ring structure, which is elastically deformed by an external force. This concept is experimentally verified by embedding a low density of self-assembled quantum dots into the wall of a rolled up micro tube ring resonator. We demonstrate that quantum dots can elastically be tuned in- and out of resonance with each other or with the ring resonator modes.

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