Contact: Laura Ost
laura.ost@nist.gov
303-497-4880
National Institute of Standards and Technology (NIST)

First 2D Pictures of a 'Frequency Comb' Transform It into a Brush

Caption: False-color images of the "fingerprints" of molecular iodine, each taken under different experimental conditions using a NIST frequency brush created with an ultrafast visible laser. The squares within each frame reveal the frequency and intensity of light from individual "bristles" of the brush. The variation in the colors reveal where the iodine absorbs specific optical frequencies.

Credit: S. Diddams/NIST

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Related news release: First 2-D Pictures of a 'frequency comb' transform it into a brush