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| Title: |
Time & Frequency; Atomic Clocks; Chip-scale Clock; Close up |
| Description: |
The "physics package" of the NIST chip-scale atomic clock includes (from the bottom) a laser, a lens, an optical attenuator to reduce the laser power, a waveplate that changes the polarization of the light, a cell containing a vapor of cesium atoms, and (on top) a photodiode to detect the laser light transmitted through the cell. The tiny gold wires provide electrical connections to the electronics for the clock.
*PL, chip-scale clock, MEMS, Global Positioning System, GPS, navigation
See also http://www.nist.gov/public_affairs/releases/miniclock.htm.
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| Subjects (names): |
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| Topics/Categories: |
Time & Frequency--Atomic Clocks
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| Type: |
Photo/Color |
| Source: |
National Institute of Standards and Technology |
Credit Line as it should
appear in print: |
Courtesy National Institute of Standards and Technology |
| AV Number: |
04PHY011 |
| Date Created: |
August 27, 2004 |
| Date Entered: |
10/21/2004 |
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