Millimeter Wave Detection via Autler-Townes Splitting in Rubidium Rydberg Atoms

Abstract

In this paper we demonstrate the detection of millimeter waves via Autler-Townes splitting in 85Rb Rydberg atoms. This method may provide an independent, atom-based, SI-traceable method for measuring mm-wave electric fields, which addresses a gap in current calibration techniques in the mm-wave regime. The electric- field amplitude within a rubidium vapor cell in the WR-10 waveguide band is measured for frequencies of 93 GHz, and 104 GHz. Relevant aspects of Autler-Townes splitting originating from a four-level electromagnetically induced transparency scheme are discussed. We measure the E-field generated by an open-ended waveguide using this technique. Experimental results are compared to a full-wave finite element simulation.

References in corpus (3)

• Coherent optical detection of highly excited Rydberg states using electromagnetically induced transparency
• Atom Based Vector Microwave Electrometry Using Rubidium Rydberg Atoms in a Vapor Cell
• Sub-Wavelength Imaging and Field Mapping via EIT and Autler-Townes Splitting In Rydberg Atoms

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