Micropillar Resonators for Optomechanics in the Extremely High 19–95-GHz Frequency Range

ANGUIANO, S.; BRUCHHAUSEN, A.E.; JUSSERAND, B.; FAVERO, I.; LAMBERTI, F.R.; LANCO, L.; SAGNES, I.; LEMAÎTRE, A.; LANZILLOTTI-KIMURA, N.D.; SENELLART, P.; FAINSTEIN, A.

PHYSICAL REVIEW LETTERS

AMER PHYSICAL SOC

Lugar: New York; Año: 2017 vol. 118

0031-9007

Strong confinement, in all dimensions, and high mechanical frequencies are highly desirable forquantum optomechanical applications. We show that GaAs/AlAs micropillar cavities fully confine notonly photons but also extremely high frequency (19?95 GHz) acoustic phonons. A strong increase of theoptomechanical coupling upon reducing the pillar size is observed, together with record room-temperatureQ-frequency products of 10 14 . These mechanical resonators can integrate quantum emitters or polaritoncondensates, opening exciting perspectives at the interface with nonlinear and quantum optics.