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Injection locking of a semiconductor double-quantum-dot micromaser

Author(s): Liu, Y-Y; Stehlik, J; Gullans, MJ; Taylor, JM; Petta, Jason R

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Abstract: The semiconductor double-quantum-dot (DQD) micromaser generates photons through single-electron tunneling events. Charge noise couples to the DQD energy levels, resulting in a maser linewidth that is 100 times larger than the Schawlow-Townes prediction. We demonstrate linewidth narrowing by more than a factor of 10 using injection locking. The injection locking range is measured as a function of input power and is shown to be in excellent agreement with the Adler equation. The position and amplitude of distortion sidebands that appear outside of the injection locking range are quantitatively examined. Our results show that this unconventional maser, which is impacted by strong charge noise and electron-phonon coupling, is well described by standard laser models.
Publication Date: Nov-2015
Electronic Publication Date: 2-Nov-2015
Citation: Liu, Y-Y, Stehlik, J, Gullans, MJ, Taylor, JM, Petta, JR. (2015). Injection locking of a semiconductor double-quantum-dot micromaser. PHYSICAL REVIEW A, 92 (10.1103/PhysRevA.92.053802
DOI: doi:10.1103/PhysRevA.92.053802
ISSN: 2469-9926
EISSN: 2469-9934
Type of Material: Journal Article
Journal/Proceeding Title: PHYSICAL REVIEW A
Version: Final published version. Article is made available in OAR by the publisher's permission or policy.



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