Dynamically creating tripartite resonance and dark modes in a multimode optomechanical system

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Dynamically creating tripartite resonance and dark modes in a multimode optomechanical system. / Damskägg, Erno; Pirkkalainen, Juha Matti; Sillanpää, Mika A.

In: Journal of Optics, Vol. 18, No. 10, 104003, 01.10.2016.

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@article{a3eafc6840e74c4ab7121d18900551fe,
title = "Dynamically creating tripartite resonance and dark modes in a multimode optomechanical system",
abstract = "We study a multimode optomechanical system where two mechanical oscillators are coupled to an electromagnetic cavity. Previously it has been shown that if the mechanical resonances have nearly equal frequencies, one can make the oscillators to interact via the cavity by strong pumping with a coherent pump tone. One can view the interaction also as emergence of an electromagnetically dark mode which gets asymptotically decoupled from the cavity and has a linewidth much smaller than that of the bare cavity. The narrow linewidth and long lifetime of the dark mode could be advantageous, for example in information storage and processing. Here we investigate the possibility to create dark modes dynamically using two pump tones. We show that if the mechanical frequencies are intrinsically different, one can bring the mechanical oscillators and the cavity on-resonance and thus create a dark mode by double sideband pumping of the cavity. We realize the scheme in a microwave optomechanical device employing two drum oscillators with unmatched frequencies, ω1/2π = 8.1 MHz and ω2/2π = 14.2 MHz. We also observe a breakdown of the rotating-wave approximation, most pronounced in another device where the mechanical frequencies are close to each other.",
keywords = "dark mode, mechanical oscillator, optomechanics, sideband pumping",
author = "Erno Damsk{\"a}gg and Pirkkalainen, {Juha Matti} and Sillanp{\"a}{\"a}, {Mika A.}",
year = "2016",
month = "10",
day = "1",
doi = "10.1088/2040-8978/18/10/104003",
language = "English",
volume = "18",
journal = "Journal of Optics",
issn = "2040-8978",
number = "10",

}

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TY - JOUR

T1 - Dynamically creating tripartite resonance and dark modes in a multimode optomechanical system

AU - Damskägg, Erno

AU - Pirkkalainen, Juha Matti

AU - Sillanpää, Mika A.

PY - 2016/10/1

Y1 - 2016/10/1

N2 - We study a multimode optomechanical system where two mechanical oscillators are coupled to an electromagnetic cavity. Previously it has been shown that if the mechanical resonances have nearly equal frequencies, one can make the oscillators to interact via the cavity by strong pumping with a coherent pump tone. One can view the interaction also as emergence of an electromagnetically dark mode which gets asymptotically decoupled from the cavity and has a linewidth much smaller than that of the bare cavity. The narrow linewidth and long lifetime of the dark mode could be advantageous, for example in information storage and processing. Here we investigate the possibility to create dark modes dynamically using two pump tones. We show that if the mechanical frequencies are intrinsically different, one can bring the mechanical oscillators and the cavity on-resonance and thus create a dark mode by double sideband pumping of the cavity. We realize the scheme in a microwave optomechanical device employing two drum oscillators with unmatched frequencies, ω1/2π = 8.1 MHz and ω2/2π = 14.2 MHz. We also observe a breakdown of the rotating-wave approximation, most pronounced in another device where the mechanical frequencies are close to each other.

AB - We study a multimode optomechanical system where two mechanical oscillators are coupled to an electromagnetic cavity. Previously it has been shown that if the mechanical resonances have nearly equal frequencies, one can make the oscillators to interact via the cavity by strong pumping with a coherent pump tone. One can view the interaction also as emergence of an electromagnetically dark mode which gets asymptotically decoupled from the cavity and has a linewidth much smaller than that of the bare cavity. The narrow linewidth and long lifetime of the dark mode could be advantageous, for example in information storage and processing. Here we investigate the possibility to create dark modes dynamically using two pump tones. We show that if the mechanical frequencies are intrinsically different, one can bring the mechanical oscillators and the cavity on-resonance and thus create a dark mode by double sideband pumping of the cavity. We realize the scheme in a microwave optomechanical device employing two drum oscillators with unmatched frequencies, ω1/2π = 8.1 MHz and ω2/2π = 14.2 MHz. We also observe a breakdown of the rotating-wave approximation, most pronounced in another device where the mechanical frequencies are close to each other.

KW - dark mode

KW - mechanical oscillator

KW - optomechanics

KW - sideband pumping

UR - http://www.scopus.com/inward/record.url?scp=84989866881&partnerID=8YFLogxK

U2 - 10.1088/2040-8978/18/10/104003

DO - 10.1088/2040-8978/18/10/104003

M3 - Article

VL - 18

JO - Journal of Optics

JF - Journal of Optics

SN - 2040-8978

IS - 10

M1 - 104003

ER -

ID: 8925369