Optical cavity cooling of mechanical modes of a semiconductor nanomembrane

Publication: Research - peer-reviewJournal article – Annual report year: 2012

Standard

Optical cavity cooling of mechanical modes of a semiconductor nanomembrane. / Usami, Koji; Naesby, A.; Bagci, Tolga; Melholt Nielsen, B.; Liu, Jin; Stobbe, S.; Lodahl, P.; Polzik, Eugene S.

In: Nature Physics, Vol. 8, No. 2, 2012, p. 168–172.

Publication: Research - peer-reviewJournal article – Annual report year: 2012

Harvard

Usami, K, Naesby, A, Bagci, T, Melholt Nielsen, B, Liu, J, Stobbe, S, Lodahl, P & Polzik, ES 2012, 'Optical cavity cooling of mechanical modes of a semiconductor nanomembrane' Nature Physics, vol 8, no. 2, pp. 168–172., 10.1038/nphys2196

APA

Usami, K., Naesby, A., Bagci, T., Melholt Nielsen, B., Liu, J., Stobbe, S., ... Polzik, E. S. (2012). Optical cavity cooling of mechanical modes of a semiconductor nanomembrane. Nature Physics, 8(2), 168–172. 10.1038/nphys2196

CBE

Usami K, Naesby A, Bagci T, Melholt Nielsen B, Liu J, Stobbe S, Lodahl P, Polzik ES. 2012. Optical cavity cooling of mechanical modes of a semiconductor nanomembrane. Nature Physics. 8(2):168–172. Available from: 10.1038/nphys2196

MLA

Vancouver

Usami K, Naesby A, Bagci T, Melholt Nielsen B, Liu J, Stobbe S et al. Optical cavity cooling of mechanical modes of a semiconductor nanomembrane. Nature Physics. 2012;8(2):168–172. Available from: 10.1038/nphys2196

Author

Usami, Koji; Naesby, A.; Bagci, Tolga; Melholt Nielsen, B.; Liu, Jin; Stobbe, S.; Lodahl, P.; Polzik, Eugene S. / Optical cavity cooling of mechanical modes of a semiconductor nanomembrane.

In: Nature Physics, Vol. 8, No. 2, 2012, p. 168–172.

Publication: Research - peer-reviewJournal article – Annual report year: 2012

Bibtex

@article{0b3fe61697d94dff9c60f8362d7ffae7,
title = "Optical cavity cooling of mechanical modes of a semiconductor nanomembrane",
keywords = "Optical physics, Nanotechnology",
publisher = "Nature Publishing Group",
author = "Koji Usami and A. Naesby and Tolga Bagci and {Melholt Nielsen}, B. and Jin Liu and S. Stobbe and P. Lodahl and Polzik, {Eugene S.}",
year = "2012",
doi = "10.1038/nphys2196",
volume = "8",
number = "2",
pages = "168–172",
journal = "Nature Physics",
issn = "1745-2473",

}

RIS

TY - JOUR

T1 - Optical cavity cooling of mechanical modes of a semiconductor nanomembrane

A1 - Usami,Koji

A1 - Naesby,A.

A1 - Bagci,Tolga

A1 - Melholt Nielsen,B.

A1 - Liu,Jin

A1 - Stobbe,S.

A1 - Lodahl,P.

A1 - Polzik,Eugene S.

AU - Usami,Koji

AU - Naesby,A.

AU - Bagci,Tolga

AU - Melholt Nielsen,B.

AU - Liu,Jin

AU - Stobbe,S.

AU - Lodahl,P.

AU - Polzik,Eugene S.

PB - Nature Publishing Group

PY - 2012

Y1 - 2012

N2 - Mechanical oscillators can be optically cooled using a technique known as optical-cavity back-action. Cooling of composite metal–semiconductor mirrors, dielectric mirrors and dielectric membranes has been demonstrated. Here we report cavity cooling of mechanical modes in a high-quality-factor and optically active semiconductor nanomembrane. The cooling is a result of electron–hole generation by cavity photons. Consequently, the cooling factor depends on the optical wavelength, varies drastically in the vicinity of the semiconductor bandgap, and follows the excitonic absorption behaviour. The resultant photo-induced rigidity is large and a mode temperature cooled from room temperature down to 4 K is realized with 50 μW of light and a cavity finesse of just 10. Thermal stress due to non-radiative relaxation of the electron–hole pairs is the primary cause of the cooling. We also analyse an alternative cooling mechanism that is a result of electronic stress via the deformation potential, and outline future directions for cavity optomechanics with optically active semiconductors.

AB - Mechanical oscillators can be optically cooled using a technique known as optical-cavity back-action. Cooling of composite metal–semiconductor mirrors, dielectric mirrors and dielectric membranes has been demonstrated. Here we report cavity cooling of mechanical modes in a high-quality-factor and optically active semiconductor nanomembrane. The cooling is a result of electron–hole generation by cavity photons. Consequently, the cooling factor depends on the optical wavelength, varies drastically in the vicinity of the semiconductor bandgap, and follows the excitonic absorption behaviour. The resultant photo-induced rigidity is large and a mode temperature cooled from room temperature down to 4 K is realized with 50 μW of light and a cavity finesse of just 10. Thermal stress due to non-radiative relaxation of the electron–hole pairs is the primary cause of the cooling. We also analyse an alternative cooling mechanism that is a result of electronic stress via the deformation potential, and outline future directions for cavity optomechanics with optically active semiconductors.

KW - Optical physics

KW - Nanotechnology

U2 - 10.1038/nphys2196

DO - 10.1038/nphys2196

JO - Nature Physics

JF - Nature Physics

SN - 1745-2473

IS - 2

VL - 8

SP - 168

EP - 172

ER -