MAKE A MEME View Large Image Ultraviolet 'Ruler' (5940506283).jpg The new JILA ultraviolet ruler is made by exposing xenon gas atoms to a special type of infrared laser light called a femtosecond frequency comb The laser light is bounced back and forth between highly ...
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Keywords: Ultraviolet 'Ruler' (5940506283).jpg The new JILA ultraviolet ruler is made by exposing xenon gas atoms to a special type of infrared laser light called a femtosecond frequency comb The laser light is bounced back and forth between highly reflective mirrors to increase its intensity The process causes the highly excited xenon to emit ultraviolet light pulses spaced identically to the original infrared comb The new comb improves the precision of measurements at the shorter UV wavelengths just as a faster shutter speed improves the ability of a camera to see shorter-lived events Credit JILA Disclaimer Any mention of commercial products within NIST web pages is for information only; it does not imply recommendation or endorsement by NIST Use of NIST Information 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 https //www flickr com/photos/usnistgov/5940506283/ Ultraviolet 'Ruler' 2005-05-17 20 44 https //www flickr com/people/63059536 N06 National Institute of Standards and Technology PD-USGov National Institute of Standards and Technology https //flickr com/photos/63059536 N06/5940506283 2016-09-07 02 14 41 United States Government Work Frequency comb
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