Very-high- and ultrahigh- frequency electric field detection using high angular momentum Rydberg states
| Autor: | Brown, Roger C., Kayim, Baran, Viray, Michael A., Perry, Abigail R., Sawyer, Brian C., Wyllie, Robert |
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| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Phys. Rev. A 107, 052605 (2023) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevA.107.052605 |
| Popis: | We demonstrate resonant detection of rf electric fields from 240 MHz to 900 MHz (very-high-frequency (VHF) to ultra-high-frequency (UHF)) using electromagnetically induced transparency to measure orbital angular momentum $L=3\rightarrow L'=4$ Rydberg transitions. These Rydberg states are accessible with three-photon infrared optical excitation. By resonantly detecting rf in the electrically small regime, these states enable a new class of atomic receivers. We find good agreement between measured spectra and predictions of quantum defect theory for principal quantum numbers $n=45$ to $70$. Using a super-hetrodyne detection setup, we measure the noise floor at $n=50$ to be $13\,\mathrm{\mu V/m/\sqrt{Hz}}$. Additionally, we utilize data and a numerical model incorporating a five-level master equation solution to estimate the fundamental sensitivity limits of our system. Comment: 8 pages, 5 figures, copy edited |
| Databáze: | arXiv |
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