Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > Microwave fridges and nano diving boards

Abstract:
NPL scientists are paving the way for highly accurate measurement at the nano-scale and beyond, by being the first team in the world to develop a tiny microwave-powered room-temperature fridge.

Microwave fridges and nano diving boards

UK | Posted on January 21st, 2010

This microwave 'fridge' is unlike the one in your kitchen. Rather than chilling pints of milk, it cools tiny devices called 'micro' or 'nano-scale mechanical resonators' to a decidedly frosty -170 ºC. It is important to cool down these devices, which look and behave like tiny diving boards (the simplest type of mechanical resonator, with a well-defined resonant frequency, like a tuning fork), so that they can be measured accurately.

Heat is a killer when trying to make an accurate measurement. Any material that is warmer than absolute zero (-273 ºC) will have atoms moving around inside it, and this makes it very difficult to measure accurately (just as it would be very difficult to weigh a person who was jumping around on the scales).

Now imagine how much easier it would be to weigh the person if they were standing still - this is effectively what NPL has achieved. We have developed a technique that selectively cools down just the property of a sample that needs to be measured. This selective cooling saves an enormous amount of energy, as it means you don't have to waste energy cooling an entire sample when you are only interested in cooling and measuring a tiny fraction of it.

This technique will be of great use in nano-scale and quantum physics as it allows scientists to detect tiny changes in physical factors such as mass, force and displacement by measuring accurately changes in the resonant frequency of the diving board. This means it can be used in applications where highly sensitive detection is needed, such as bio-analytical screening for viruses (by catching a virus on the diving board!). In the longer term this technique could lead to development of even more sensitive 'quantum' diving boards which could be used to examine the really big questions of quantum physics, such as "At what scale do quantum effects break down?".

For more information on this research read 'Excitation, detection, and passive cooling of a micromechanical cantilever using near-field of a microwave resonator', published in the journal Applied Physics Letters 95, 113501 (2009) doi:10.1063/1.3224912 on 16 September 2009.

For more information, please contact Dr Ling Hao:

resource.npl.co.uk/expertise/search.php?name=Ling+Hao

Find out more about NPL's work in Quantum Phenomena:

www.npl.co.uk/quantum-phenomena/

####

About National Physical Laboratory
The National Physical Laboratory (NPL) is one of the UK's leading science and research facilities. It is a world-leading centre of excellence in developing and applying the most accurate standards, science and technology available.

For more information, please click here

Contacts:
National Physical Laboratory
Hampton Road
Teddington
Middlesex
TW11 0LW


Telephone: +44 20 8977 3222 (Switchboard)
Facsimile: +44 20 8614 0446

Copyright © National Physical Laboratory

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Smaller, faster, cheaper: A new type of modulator for the future of data transmission July 27th, 2015

Researchers predict material with record-setting melting point July 27th, 2015

Reshaping the solar spectrum to turn light to electricity: UC Riverside researchers find a way to use the infrared region of the sun's spectrum to make solar cells more efficient July 27th, 2015

Industrial Nanotech, Inc. Provides Update on PCAOB Audited Financials July 27th, 2015

Possible Futures

Smaller, faster, cheaper: A new type of modulator for the future of data transmission July 27th, 2015

Researchers predict material with record-setting melting point July 27th, 2015

Global Corrosion Resistant Nano Coatings Market To 2015: Acute Market Reports July 27th, 2015

Global Zinc oxide nanopowders Industry 2015: Acute Market Reports July 25th, 2015

Announcements

Researchers predict material with record-setting melting point July 27th, 2015

Reshaping the solar spectrum to turn light to electricity: UC Riverside researchers find a way to use the infrared region of the sun's spectrum to make solar cells more efficient July 27th, 2015

Industrial Nanotech, Inc. Provides Update on PCAOB Audited Financials July 27th, 2015

Global Corrosion Resistant Nano Coatings Market To 2015: Acute Market Reports July 27th, 2015

Tools

Reshaping the solar spectrum to turn light to electricity: UC Riverside researchers find a way to use the infrared region of the sun's spectrum to make solar cells more efficient July 27th, 2015

Superfast fluorescence sets new speed record: Plasmonic device has speed and efficiency to serve optical computers July 27th, 2015

Ultra-thin hollow nanocages could reduce platinum use in fuel cell electrodes July 24th, 2015

Deben reports on the use of their CT500 in the X-ray microtomography laboratory at La Trobe University, Melbourne, Australia July 22nd, 2015

Nanobiotechnology

Spintronics: Molecules stabilizing magnetism: Organic molecules fixing the magnetic orientation of a cobalt surface/ building block for a compact and low-cost storage technology/ publication in Nature Materials July 25th, 2015

Programming adult stem cells to treat muscular dystrophy and more by mimicking nature July 22nd, 2015

Biophotonics - Global Strategic Business Report 2015 July 21st, 2015

Rare form: Novel structures built from DNA emerge July 20th, 2015

Quantum nanoscience

Drawing a line between quantum and classical world: Bell's Inequality fails as a test of the boundary July 21st, 2015

World first: Significant development in the understanding of macroscopic quantum behavior: Researchers from Polytechnique Montréal and Imperial College London demonstrate the wavelike quantum behavior of a polariton condensate on a macroscopic scale and at room temperature July 14th, 2015

The quantum physics of artificial light harvesting: How molecular vibrations make photosynthesis efficient July 13th, 2015

A 'movie' of ultrafast rotating molecules at a hundred billion per second: A quantum wave-like nature was successfully observed in rotating nitrogen molecules July 4th, 2015

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project