<p>This colorized scanning electron micrograph shows a cube of germanium attached to a membrane. The four small light blue rectangles at the midpoints of the membrane perimeter are chip-scale refrigerators that cooled the cube and membrane to only a few hundred thousandths of a degree above absolute zero.
</p><p>See also <a rel="nofollow" class="external text" href="http://www.nist.gov/pml/quantum/chip_scale_042105.cfm">www.nist.gov/pml/quantum/chip_scale_042105.cfm</a>. 
</p><p>Credit: N. Miller, A. Clark/NIST
</p><p><b>Disclaimer:</b>
Any mention of commercial products within NIST web pages is for information only; it does not imply recommendation or endorsement by NIST.
</p><p><b>Use of NIST Information:</b>
</p>
These World Wide Web pages are provided as a public service by the National Institute of Standards and Technology (NIST). With the exception of material marked as copyrighted, information presented on these pages is considered public information and may be distributed or copied. Use of appropriate byline/photo/image credits is requested.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/63059536@N06">National Institute of Standards and Technology</a>
2005-04-19 14:01
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/usnistgov/5828204117/">Cube of Germanium</a>