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Title: Extreme ultraviolet (EUV) frequency comb
Description: Artist's conception of JILA's extreme ultraviolet (EUV) frequency comb. The original light source is a pulsed infrared laser, which is used to create a train of attosecond-long pulse bursts at EUV wavelengths (the bright white spot in the distance). Each of the resulting 'harmonics'--strong signals at regular fractions of the original infrared wavelength--has its own set of 'teeth' marking individual frequencies (series of adjacent white lines in the foreground), creating a frequency comb within each harmonic. To prove the new structure exists, JILA scientists observed a tooth interacting with argon atoms, indicated by the glowing atom symbol in the center foreground.

*PML, frequency comb, ultraviolet, wavelengths

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Subjects (names):
Type: Graphic/illustration
Source: National Institute of Standards and Technology
Credit Line as it should
appear in print:
AV Number: 12PML001
Date Created: Unknown
Date Entered: 2/1/2012

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