Low-Loss Optomechanical Oscillator for Quantum-Optics Experiments

Year: 2015

Authors: Borrielli A., Pontin A., Cataliotti FS., Marconi L., Marin F., Marino F., Pandraud G., Prodi GA., Serra E., Bonaldi M.

Autors Affiliation: Nanosci Trento FBK Div, Inst Mat Elect & Magnetism, I-38123 Povo, Trento, Italy; Ist Nazl Fis Nucl, Trento Inst Fundamental Phys & Applicat, I-38123 Povo, Trento, Italy; Univ Firenze, Dipartimento Fis & Astron, I-50019 Sesto Fiorentino, FI, Italy; Ist Nazl Fis Nucl, Sez Firenze, I-50019 Sesto Fiorentino, FI, Italy; European Lab Nonlinear Spect LENS, I-50019 Sesto Fiorentino, FI, Italy; CNR INO, I-50125 Florence, Italy; Delft Univ Technol, Dept Microelect & Comp Engn ECTM DIMES, NL-2628 CT Delft, Netherlands; Univ Trento, Dipartimento Fis, I-38123 Povo, Trento, Italy.

Abstract: We present an oscillating micromirror with mechanical quality factors Q up to 1.2 x 10(6) at cryogenic temperature and optical losses lower than 20 ppm. The device is specifically designed to ease the detection of ponderomotive squeezing (or, more generally, to produce a cavity quantum optomechanical system) at frequencies of about 100 kHz. The design allows one to keep under control both the structural loss in the optical coating and the mechanical energy leakage through the support. The comparison between devices with different shapes shows that the residual mechanical loss at 4.2 K is equally contributed by the intrinsic loss of the silicon substrate and of the coating, while at higher temperatures the dominant loss mechanism is thermoelasticity in the substrate. As the modal response of the device is tailored for its use in optical cavities, these features make the device very promising for quantum-optics experiments.

Journal/Review: PHYSICAL REVIEW APPLIED

Volume: 3 (5)      Pages from: 54009-1  to: 54009-12

More Information: This work has been supported by MIUR (PRIN 2010-2011, Project No. 20109FPLWN) and by INFN (HUMOR project). A. B. acknowledges financial support by MIUR (FIRB-Futuro in Ricerca 2013, Project No. RBFR13QUVI).
KeyWords: Nanomechanical Resonators; Noise Reduction; Cavity; Dissipation; Microwave; Light; State; Laser
DOI: 10.1103/PhysRevApplied.3.054009

Citations: 12
data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-11-17
References taken from IsiWeb of Knowledge: (subscribers only)
Connecting to view paper tab on IsiWeb: Click here
Connecting to view citations from IsiWeb: Click here