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Micro Holes (5828755672)
Summary
NIST researchers and collaborators have developed a new method for measuring the interior dimensions of small holes with an uncertainty of only 35 nanometers. Here, a glass probe is inserted into an optical "ferrule," a device for connecting optical fibers used in communications systems.
See also www.nist.gov/public_affairs/techbeat/tb2005_0602.htm#shadow.
Credit: NIST
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