Quantum-mechanical theory of optomechanical Brillouin cooling

Tomes, Matthew; Marquardt, Florian; Bahl, Gaurav; Carmon, Tal

doi:10.1103/physreva.84.063806

Cited by 27 publications

(31 citation statements)

References 33 publications

(33 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These low-frequency acoustic modes were shown to have long phonon lifetimes, up to two orders of magnitude longer than the photon lifetimes in these high-Q devices [32,34]. This lengthened phonon lifetime was in accordance with what is needed for cooling [35], as a result of which spontaneous Brillouin cooling was experimentally observed [34,36]. To summarize, Brillouin scattering can excite mechanical WGMs at vibrational rates from tens of MHz [16,32,33] to tens of GHz [28,29].…”

Section: Brillouin Mechanism For Optomechanical Actuation and Coolingmentioning

confidence: 59%

Acoustic whispering-gallery modes in optomechanical shells

2012

Self Cite

View full text Add to dashboard Cite

We numerically calculate the forms and frequencies of mechanical whispering-gallery modes in silica shells. Such modes were recently experimentally observed in water-filled optomechanical resonators, which constitute a bridge between optomechanics and microfluidics. We consider the three acoustic mode families of Rayleigh-Lamb waves, longitudinal waves and Love waves. Our study shows that these acoustic modes have rich velocity dispersion characteristics and can create considerable deformation of the inner surface of the shells. In this manner, a novel optomechanical interaction may be facilitated between fluids and light.

show abstract

Section: Brillouin Mechanism For Optomechanical Actuation and Coolingmentioning

confidence: 59%

Acoustic whispering-gallery modes in optomechanical shells

2012

Self Cite

View full text Add to dashboard Cite

show abstract

“…Non-periodic spacing between resonances is particularly helpful in suppressing scattering in the Stokes direction when only anti-Stokes scattering is desired. This selective filtering capability was exploited to achieve spontaneous Brillouin cooling of the acoustic modes [23,25] as we will discuss in the next section.…”

Section: Brillouin Optomechanics In Resonatorsmentioning

confidence: 99%

“…Our quantum analysis in [47] provides details on the feasibility of using this system to reach ground-state [44,45,48].…”

Section: Cooling Theorymentioning

confidence: 99%

Brillouin Optomechanics

Bahl

Carmon

2014

Cavity Optomechanics

Self Cite

View full text Add to dashboard Cite

In this chapter we introduce the concept of Brillouin optomechanics, a phonon-photon interaction process mediated by the electrostrictive force exerted by light on dielectrics and the photoelastic scattering of light from an acoustic wave. We first provide a review of the phenomenon and continue with the first experiments where stimulated Brillouin optomechanical actuation was used in microdevices, and spontaneous Brillouin cooling was demonstrated. IntroductionStimulated Brillouin scattering (SBS) [1,2] has been used since the 1960s as an acousto-optic gain mechanism for lasers [3]. Subsequently, it has been employed as a tool for slow light [4], for non-destructive characterization of materials [5][6][7], and in optical phase conjugation [8] for holography. Brillouin lasers, due to their narrow linewidth, are also employed in ring laser gyroscopes [9]. On the other hand, in fiber-based communication systems and high power fiber lasers, SBS is considered an undesirable mechanism that interferes with proper function [10]. It is important to note that SBS is an optical nonlinearity common to all dielectrics in all states of matter, and is generally considered to be the strongest optical nonlinearity [11]. In addition to optical fibers and bulk media SBS has been demonstrated in a variety of optical systems. Examples range over a variety of size scales, including nanoscale spheres [12], fluid droplets [13], photonic-crystal fibers [14], and recently in mm-scale [15,16] and micron-scale resonators [17].

show abstract

“…Quantum-mechanical theory of Brillouin cooling has been considered in the paper. 42 However, it should be noted that contrary to traditional cooling with anti-Stokes fluorescence, which cools the whole thermal bath, laser cooling based on Brillouin scattering cools only selected acoustical mode; that is, this cooling process can be useful for addressing cooling at a predetermined acoustical frequency only.…”

Section: Laser Cooling With Spontaneous Brillouin Scatteringmentioning

confidence: 99%

Recent advances in laser cooling of solids

Nemova

Kashyap

2013

Photonics North 2013

View full text Add to dashboard Cite

The recent achievements devoted to cooling of solids with a laser are presented in this paper. We discuss the latest results of traditional laser cooling of solids based on rare earth ions and new techniques based on colloidal lead-salt quantum dots doped in a glass host, laser cooling in Tm 3+ -doped oxy-fluoride glass ceramic. Relatively short (microsecond) lifetime of the excited level of the PbSe QDs compared to the millisecond lifetime of the excited level of RE ions allows an acceleration of the cooling process and provides an opportunity to use new materials with higher phonon energy as hosts, which are normally considered unsuitable for cooling with RE ions. Another new approach to the laser cooling problem based on super-radiance has been considered in this paper. The advantages of optical refrigeration with rare earth doped semiconductors, in which not only optically active electrons of the 4f shell but the valence and conduction bands of the host material are involved in cooling cycle is discussed. It is shown that involving the valence and conduction bands of the host in the cooling cycle allows the pump wavelength to be shorter than mean fluorescence wavelength. Raman laser cooling of solids as well as observation of spontaneous Brillouin cooling have been presented.

show abstract

Quantum-mechanical theory of optomechanical Brillouin cooling

Cited by 27 publications

References 33 publications

Acoustic whispering-gallery modes in optomechanical shells

Acoustic whispering-gallery modes in optomechanical shells

Brillouin Optomechanics

Recent advances in laser cooling of solids

Contact Info

Product

Resources

About