Title :
Megahertz monocrystalline optomechanical resonators with minimal dissipation
Author :
Cole, Garrett D. ; Wilson-Rae, Ignacio ; Vanner, Michael R. ; Groblacher, Simon ; Pohl, Johannes ; Zorn, Martin ; Weyers, Markus ; Peters, Achim ; Aspelmeyer, Markus
Author_Institution :
Inst. for Quantum Opt. & Quantum Inf., Austrian Acad. of Sci., Leoben, Austria
Abstract :
We present detailed experimental and theoretical results for novel micro-optomechanical resonators, representing a significant improvement in the performance of such structures. These devices exhibit eigenfrequencies (fr) approaching 4 MHz, reflectivities exceeding 99.98% at 1064 nm, and mechanical quality factors (Q) of 0.8 × 105 (measured at 20 K and 2.5 × 10-7 millibar pressure); yielding a Q·fr product of 3.1 × 1011 Hz, while enabling a finesse of approximately 20,000 when used as an end mirror in an impedance-matched Fabry-Perot optical cavity. These results represent a breakthrough in the development of optomechanical devices applicable to the emerging field of quantum optomechanics.
Keywords :
Q-factor; micromechanical resonators; optical resonators; eigenfrequencies; end mirror; frequency 4 MHz; impedance-matched Fabry-Perot optical cavity; mechanical quality factors; megahertz monocrystalline optomechanical resonators; micro-optomechanical resonators; optomechanical devices; quantum optomechanics; temperature 20 K; wavelength 1064 nm; Fabry-Perot; Impedance measurement; Mechanical variables measurement; Mirrors; Optical devices; Optical resonators; Pressure measurement; Q factor; Q measurement; Reflectivity;
Conference_Titel :
Micro Electro Mechanical Systems (MEMS), 2010 IEEE 23rd International Conference on
Conference_Location :
Wanchai, Hong Kong
Print_ISBN :
978-1-4244-5761-8
Electronic_ISBN :
1084-6999
DOI :
10.1109/MEMSYS.2010.5442339
