Millimeter wave detection via Autler-Townes splitting in rubidium Rydberg atoms

Gordon, Joshua A.; Holloway, Christopher L.; Schwarzkopf, Andrew; Anderson, David; Miller, Stephanie A.; Thaicharoen, Nithiwadee; Raithel, Georg

doi:10.1063/1.4890094

Cited by 172 publications

(103 citation statements)

References 22 publications

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“…Room-temperature microwave electrometry by Autler-Townes (AT) splitting of Rydberg-EIT resonances [11] has recently been demonstrated as a viable high-precision technique [12] suitable for broadband measurements of radiation fields [13]. This technique has also been used for measurements of microwave polarizations [14], millimeter-wave detection [15], subwavelength imaging, and field mapping [16,17].…”

Section: Introductionmentioning

confidence: 99%

Two-photon microwave transitions and strong-field effects in a room-temperature Rydberg-atom gas

et al. 2014

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We investigate two-photon Autler-Townes splitting and strong-field effects of 85 Rb Rydberg atoms in a room-temperature vapor cell. To observe the level structure we employ electromagnetically induced transparency. We first study the two-photon 62S 1/2 -63S 1/2 microwave transition using an electric-field reference measurement obtained with the one-photon 62S 1/2 -62P 3/2 transition. We then study the 61D 5/2 -62D 5/2 transition where the microwave electric-field range is extended up to ∼ 40 V/m. A Floquet analysis is used to model field-induced level shifts and state-mixing effects present in the strongly driven quantum systems under consideration. Calculations are found to be in good agreement with experimental observations.

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Section: Introductionmentioning

confidence: 99%

Two-photon microwave transitions and strong-field effects in a room-temperature Rydberg-atom gas

et al. 2014

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“…Weak microwave fields become detectable in Rydberg-atom-based EIT measurement via microwave-induced distortion and Autler-Townes splitting of EIT lines [2][3][4] . In this weakfield regime, microwave fields that are more than tens of MHz off-resonance from a Rydberg transition become hard detect, because AC level shifts decrease with increasing detuning.…”

Section: Continuous-frequency Microwave Field Measurements In Thementioning

confidence: 99%

“…The Rydberg-atom-based measurement approach has garnered broad interest at national metrology institutes for the establishment of new atomic measurement standards of microwave and millimeter-wave electric fields 4 , and holds promise for the development of atomic microwave electric-field sensors and measurement technologies with unprecedented bandwidth and dynamic range.…”

Section: Introductionmentioning

confidence: 99%

Continuous-frequency measurements of high-intensity microwave electric fields with atomic vapor cells

Anderson

Raithel

2017

Applied Physics Letters

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We demonstrate continuous-frequency electric field measurements of high-intensity microwaves via optical spectroscopy in a small atomic vapor cell. The spectroscopic response of a room-temperature rubidium atomic vapor in a glass cell is investigated and employed for absolute measurements of K a -band microwave electric fields from ∼200 V/m to >1 kV/m over a continuous frequency range of ±1 GHz (15% band coverage). It is established that in strong microwave fields frequency-specific spectral features allow for electric field measurements over a large continuous frequency range.

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“…Consequently, the modified optical response of a Rydberg EIT medium [23] also provides a powerful tool to probe and image both DC electric [24][25][26][27] and microwave fields [28][29][30][31][32]. The application of external fields can also be used to enhance the effective photon interactions by introducing resonant dipole interactions: microwaves can directly couple to adjacent Rydberg states [13,33], while the Stark shift resulting from a DC electric field can tune the interactions at a Förster resonance [34].…”

Section: Introductionmentioning

confidence: 99%

A high repetition rate experimental setup for quantum non-linear optics with cold Rydberg atoms

Busche

Ball

Huillery

2016

Eur. Phys. J. Spec. Top.

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Abstract. Using electromagnetically induced transparency and photon storage, the strong dipolar interactions between Rydberg atoms and the resulting dipole blockade can be mapped onto light fields to realise optical non-linearities and interactions at the single photon level. We report on the realisation of an experimental apparatus designed to study interactions between single photons stored as Rydberg excitations in optically trapped microscopic ensembles of ultracold 87 Rb atoms. A pair of in-vacuum high numerical aperture lenses focus excitation and trapping beams down to 1 μm, well below the Rydberg blockade. Thanks to efficient magneto-optical trap (MOT) loading from an atomic beam generated by a 2D MOT and the ability to recycle the microscopic ensembles more than 20000 times without significant atom loss, we achieve effective repetition rates exceeding 110 kHz to obtain good photon counting statistics on reasonable time scales. To demonstrate the functionality of the setup, we present evidence of strong photon interactions including saturation of photon storage and the retrieval of non-classical light. Using in-vacuum antennae operating at up to 40 GHz, we perform microwave spectroscopy on photons stored as Rydberg excitations and observe an interaction induced change in lineshape depending on the number of stored photons.

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Millimeter wave detection via Autler-Townes splitting in rubidium Rydberg atoms

Cited by 172 publications

References 22 publications

Two-photon microwave transitions and strong-field effects in a room-temperature Rydberg-atom gas

Two-photon microwave transitions and strong-field effects in a room-temperature Rydberg-atom gas

Continuous-frequency measurements of high-intensity microwave electric fields with atomic vapor cells

A high repetition rate experimental setup for quantum non-linear optics with cold Rydberg atoms

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