Share Email Print
cover

Proceedings Paper

Low loss optomechanical cavities based on silicon oscillator
Author(s): A. Borrielli; A. Pontin; F. S. Cataliotti; L. Marconi; F. Marin; F. Marino; G. Pandraud; G. A. Prodi; E. Serra; M. Bonaldi
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

In an optomechanical cavity the optical and mechanical degree of freedom are strongly coupled by the radiation pressure of the light. This field of research has been gathering a lot of momentum during the last couple of years, driven by the technological advances in microfabrication and the first observation of quantum phenomena. These results open new perspectives in a wide range of applications, including high sensitivity measurements of position, acceleration, force, mass, and for fundamental research. We are working on low frequency pondero-motive light squeezing as a tool for improving the sensitivity of audio frequency measuring devices such as magnetic resonance force microscopes and gravitational-wave detectors. It is well known that experiments aiming to produce and manipulate non-classical (squeezed) light by effect of optomechanical interaction need a mechanical oscillator with low optical and mechanical losses. These technological requirements permit to maximize the force per incoming photon exerted by the cavity field on the mechanical element and to improve the element’s response to the radiation pressure force and, at the same time, to decrease the influence of the thermal bath. In this contribution we describe a class of mechanical devices for which we measured a mechanical quality factor up to 1.2 × 106 and with which it was possible to build a Fabry-Perot cavity with optical finesse up to 9 × 104. From our estimations, these characteristics meet the requirements for the generation of radiation squeezing and quantum correlations in the 100kHz region. Moreover our devices are characterized by high reproducibility to allow inclusion in integrated systems. We show the results of the characterization realized with a Michelson interferometer down to 4.2K and measurements in optical cavities performed at cryogenic temperature with input optical powers up to a few mW. We also report on the dynamical stability and the thermal response of the system.

Paper Details

Date Published: 21 May 2015
PDF: 9 pages
Proc. SPIE 9517, Smart Sensors, Actuators, and MEMS VII; and Cyber Physical Systems, 95171O (21 May 2015); doi: 10.1117/12.2178821
Show Author Affiliations
A. Borrielli, Institute of Materials for Electronics and Magnetism (Italy)
Trento Institute for Fundamental Physics and Application (Italy)
A. Pontin, Trento Institute for Fundamental Physics and Application (Italy)
Univ. degli Studi di Firenze (Italy)
F. S. Cataliotti, Univ. degli Studi di Firenze (Italy)
European Lab. for Non-Linear Spectroscopy (Italy)
INFN (Italy)
L. Marconi, Univ. degli Studi di Firenze (Italy)
F. Marin, Univ. degli Studi di Firenze (Italy)
European Lab. for Non-Linear Spectroscopy (Italy)
INFN (Italy)
F. Marino, INFN (Italy)
INO, CNR (Italy)
G. Pandraud, Technische Univ. Delft (Netherlands)
G. A. Prodi, Trento Institute for Fundamental Physics and Application (Italy)
Univ. degli Studi di Trento (Italy)
E. Serra, Trento Institute for Fundamental Physics and Application (Italy)
Technische Univ. Delft (Netherlands)
M. Bonaldi, Institute of Materials for Electronics and Magnetism (Italy)
Trento Institute for Fundamental Physics and Application (Italy)


Published in SPIE Proceedings Vol. 9517:
Smart Sensors, Actuators, and MEMS VII; and Cyber Physical Systems
José Luis Sánchez-Rojas; Riccardo Brama, Editor(s)

© SPIE. Terms of Use
Back to Top