noun
- Plural of petahertz; units of frequency equal to one quadrillion hertz (10^15 Hz).
Usage: technical; used in physics and telecommunications
Examples
- The laser operates at frequencies measured in petahertzes.
- Optical communications systems work with signals in the petahertz range.
- Researchers are exploring materials that respond to petahertz radiation.
- The experiment required equipment capable of detecting petahertzes of electromagnetic radiation.