Strong Optical-Mechanical Coupling in a Vertical GaAs/AlAs Microcavity for Subterahertz Phonons and Near-Infrared Light. Fainstein, A., Lanzillotti-Kimura, N. D., Jusserand, B., & Perrin, B. Physical Review Letters, 110(3):037403, January, 2013.
Strong Optical-Mechanical Coupling in a Vertical GaAs/AlAs Microcavity for Subterahertz Phonons and Near-Infrared Light [link]Paper  doi  abstract   bibtex   
We show that distributed Bragg reflector GaAs/AlAs vertical cavities designed to confine photons are automatically optimal to confine phonons of the same wavelength, strongly enhancing their interaction. We study the impulsive generation of intense coherent and monochromatic acoustic phonons by following the time evolution of the elastic strain in picosecond-laser experiments. Efficient optical detection is assured by the strong phonon backaction on the high-Q optical cavity mode. Large optomechanical factors are reported (∼THz/nm range). Pillar cavities based in these structures are predicted to display picogram effective masses, almost perfect sound extraction, and threshold powers for the stimulated emission of phonons in the range μW–mW, opening the way for the demonstration of phonon “lasing” by parametric instability in these devices.
@article{fainstein_strong_2013,
	title = {Strong {Optical}-{Mechanical} {Coupling} in a {Vertical} {GaAs}/{AlAs} {Microcavity} for {Subterahertz} {Phonons} and {Near}-{Infrared} {Light}},
	volume = {110},
	url = {http://link.aps.org/doi/10.1103/PhysRevLett.110.037403},
	doi = {10.1103/PhysRevLett.110.037403},
	abstract = {We show that distributed Bragg reflector GaAs/AlAs vertical cavities designed to confine photons are automatically optimal to confine phonons of the same wavelength, strongly enhancing their interaction. We study the impulsive generation of intense coherent and monochromatic acoustic phonons by following the time evolution of the elastic strain in picosecond-laser experiments. Efficient optical detection is assured by the strong phonon backaction on the high-Q optical cavity mode. Large optomechanical factors are reported (∼THz/nm range). Pillar cavities based in these structures are predicted to display picogram effective masses, almost perfect sound extraction, and threshold powers for the stimulated emission of phonons in the range μW–mW, opening the way for the demonstration of phonon “lasing” by parametric instability in these devices.},
	number = {3},
	urldate = {2014-11-03},
	journal = {Physical Review Letters},
	author = {Fainstein, A. and Lanzillotti-Kimura, N. D. and Jusserand, B. and Perrin, B.},
	month = jan,
	year = {2013},
	pages = {037403}
}

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