Researcher looking at IR laser with IR detector

Researcher looking at IR laser with IR detector

T215/0099 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 55.4MB

Downloadable file size: 4.0MB

Price image Pricing

Please login to use the price calculator

This image is part of the feature Atomic Clocks


Caption: Dr Drullinger of the US National Institute of Standards and Technology (NIST) using an infrared detector to 'see' the beam of an infrared laser. The laser is part of the new NIST-7 atomic clock, which promises to be the world's most accurate. The infrared laser is one of several lasers used in the clock. It is used to 'cool' ions of hydrogen so that they may be contained within an ion trap. Other, visible light, lasers may then be used to measure the oscillation of the ions. The oscillation count is the key to precise time measurement, allowing an accuracy of one billionth of a second per day (one second in three million years). NIST-7 will become operational in 1992.

Release details: Model release not available. Property release not required.

Keywords: atomic clock, detector, high-tech, infrared, infrared detector, infrared laser, laser, lasers, nist-7, scientific, technology, time keeping

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.