petahertz


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pet·a·hertz

 (pĕt′ə-hûrts′)
n. Abbr. PHz
One quadrillion (1015) hertz.

petahertz

(ˈpɛtəˌhɜːts)
n
(Electronics) a very large unit of electrical frequency that is equivalent to one quadrillion hertz
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References in periodicals archive ?
To create the oscillations, the researchers plan to use a laser operating at petahertz frequencies - 10 (15) oscillations per second - to boost the nucleus of a thorium 229 ion into a higher energy state.
Petahertz is a unit of measure for very fast frequencies (1 quadrillion hertz).