this post was submitted on 22 Oct 2023
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"In October 2018, the United States Army Research Laboratory publicly discussed efforts to develop a super wideband radio receiver using Rydberg atoms. In March 2020, the laboratory announced that its scientists analysed the Rydberg sensor's sensitivity to oscillating electric fields over an enormous range of frequencies—from 0 to 10^12^ Hz (the spectrum to 0.3mm wavelength). The Rydberg sensor can reliably detect signals over the entire spectrum and compare favourably with other established electric field sensor technologies, such as electro-optic crystals and dipole antenna-coupled passive electronics."
Wikipedia, Rydberg atom
It's a neat wiki entry, I recommend it. I hadn't heard of Rydberg atoms before today.
should be 10^12^ Hz or 1 THz
TY! One moment, I just ctrl CV'd and this is what happens.