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arXiv · 2209.08927

Telecom-wavelength spectra of a Rydberg state in a hot vapor

Wenfang Li·Jinjin Du·Mark Lam·Wenhui Li
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Abstract

We study telecom-wavelength spectra of a Rydberg state in an atomic vapor with a three-photon excitation scheme. Two lasers of 780 nm and 776 nm are used to pump Rubidium-85 atoms in a vapor cell to the $5D_{\mathrm{5/2}}$ state, from which a probe beam of 1292 nm in the O-band telecommunication wavelength drives a transition to the $21F_{\mathrm{7/2}}$ Rydberg state. We investigate the probe spectra over the power of pump lasers. The simulation based on a 4-level theoretical model captures the main features of the experimental results. This spectroscopic study paves the way for future experiments of making a direct link between fiber optics and radio transmission via Rydberg atoms.

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Wenfang Li, Jinjin Du, Mark Lam, Wenhui Li. 2022-09-19. Telecom-wavelength spectra of a Rydberg state in a hot vapor. https://doi.org/10.1364/ol.469443

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