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Kemiktarak U, Durand M, Metcalfe M, et al. Mode competition and anomalous cooling in a multimode phonon laser. Phys Rev Lett. 2014;113(3):030802doi: 10.1103/PhysRevLett.113.030802.
Kemiktarak, U., Durand, M., Metcalfe, M., & Lawall, J. (2014). Mode competition and anomalous cooling in a multimode phonon laser. Physical review letters, 113(3), 030802. https://doi.org/10.1103/PhysRevLett.113.030802
Kemiktarak, Utku, et al. "Mode competition and anomalous cooling in a multimode phonon laser." Physical review letters vol. 113,3 (2014): 030802. doi: https://doi.org/10.1103/PhysRevLett.113.030802
Kemiktarak U, Durand M, Metcalfe M, Lawall J. Mode competition and anomalous cooling in a multimode phonon laser. Phys Rev Lett. 2014 Jul 18;113(3):030802. doi: 10.1103/PhysRevLett.113.030802. Epub 2014 Jul 15. PMID: 25083628.
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Phys Rev Lett. 2014 Jul 18;113(3):030802. doi: 10.1103/PhysRevLett.113.030802. Epub 2014 Jul 15.

Mode competition and anomalous cooling in a multimode phonon laser.

Physical review letters

Utku Kemiktarak, Mathieu Durand, Michael Metcalfe, John Lawall

Affiliations

  1. Joint Quantum Institute, University of Maryland, College Park, Maryland 20742, USA and National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, USA.
  2. National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, USA.

PMID: 25083628 DOI: 10.1103/PhysRevLett.113.030802

Abstract

We study mode competition in a multimode "phonon laser" comprised of an optical cavity employing a highly reflective membrane as the output coupler. Mechanical gain is provided by the intracavity radiation pressure, to which many mechanical modes are coupled. We calculate the gain and find that strong oscillation in one mode suppresses the gain in other modes. For sufficiently strong oscillation, the gain of the other modes actually switches sign and becomes damping, a process we call "anomalous cooling." We demonstrate that mode competition leads to single-mode operation and find excellent agreement with our theory, including anomalous cooling.

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