English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Open

Atom-based radio frequency electromagnetic field sensing using atomic Rydbergstates is a promising technique that has recently attracted significantinterest. Its unique advantages, such as extraordinary bandwidth,self-calibration and all-dielectric sensors, are a tangible improvement overantenna-based methods in applications such as test and measurement, anddevelopment of broad bandwidth receivers. Here, we demonstrate how an opticalfrequency comb can be used to acquire data in the Autler-Townes regime ofRydberg atom-based electrometry in a massively parallel fashion, eliminatingthe need for laser scanning. Two-photon electromagnetically inducedtransparency read-out and preparation of cesium is used for the demonstration.A flat, quasi-continuous optical comb is generated with the probe laser at 852nm using an electro-optic modulator and arbitrary waveform generator. A singlefrequency coupling laser at 509 nm is tuned to the Rydberg launch state. Anenhanced transmission signal is obtained using self-heterodyne spectroscopy.The comb signal is beat against a local oscillator derived from the singlefrequency probe laser on a fast photodiode. The transmission of each probelaser comb tooth is observed. We resolve electromagnetically inducedtransparency peaks with linewidths below 5 MHz, with and without laser locking.Radio frequency electromagnetic fields as low as 66 $\mu$Vcm$^{-1}$ aredetected with sensitivities of 2.3 $\mu$Vcm$^{-1}$Hz$^{-1/2}$. The methodoffers a significant advantage for reading-out electromagnetically inducedtransparency and Autler-Townes splitting as neither laser needs to be scannedand slow frequency drifts can be tolerated in some applications. The methodenables the detection of the amplitude of a pulsed radio frequencyelectromagnetic field when the incoming pulse Autler-Townes splits theelectromagnetically induced transparency peak.

Rydberg atom-based Electrometry Using a Self-Heterodyne Frequency Comb Readout and Preparation Scheme