Cart (Loading....) | Create Account
Close category search window
 

Measurements of the Degree of Comprehensive Cooling in Stochastically Quenched Microstructures

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Hammig, M.D. ; Dept. of Nucl. Eng. & Radiol. Sci., Michigan Univ., Ann Arbor, MI ; Wehe, D.K.

We clarify the atomistic behavior of a micromechanical structure whose thermally driven stochastic motion has been quenched, using force-feedback techniques. The quenching is observed, via both qualitative and quantitative measurements, to optically clamp one of the vibrational modes of the lever such that the overall body temperature is only reduced slightly. The degree of comprehensive cooling is gauged by examining the reduction in the stochastic vibration of the third vibrational mode of a doubly clamped lever, while the first is quenched, to 143 K. The observation of only slight temperature reductions is confirmed by noting the absence of a phase change in condensing water vapor on a cantilever, although the deflection-magnitude of the fundamental vibrational mode is reduced to an effective temperature of 11 K. Finally, the measured stochastic variation rate is consistent with the lever's mechanical properties, not its thermal properties, demonstrating near-room temperature operation. The results thus imply that each vibrational mode can be reduced to deep sub-Kelvin temperatures independent of the overall thermal state of the lever, thus enabling sub-Brownian sensing in applications such as chemical and radiation detection, and quantum superposition experiments

Published in:

Sensors Journal, IEEE  (Volume:7 ,  Issue: 3 )

Date of Publication:

March 2007

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.