• Corpus ID: 118200621

Quantum Assisted Electrometry using Bright Atomic Resonances

  title={Quantum Assisted Electrometry using Bright Atomic Resonances},
  author={Jonathon Sedlacek and Arne Schwettmann and Harald Kubler and Robert Low and Tilman Pfau and James P Shaffer},
  journal={arXiv: Atomic Physics},
We demonstrate a new method for measuring radio frequency (RF) electric fields based on quantum interference in an atom. Using a bright resonance prepared within an electromagnetically induced transparency window we are able to achieve a sensitivity of ~ 30 {\mu}V cm^-1 sqrt(Hz)^-1. For this work, we demonstrated detection of RF electric fields as small as ~ 8 {\mu}V cm^-1. The sensitivity is currently limited by the spectral bandwidth of the lasers used in the experiment and can be… 
16 Citations

Figures from this paper

Radio-frequency-modulated Rydberg states in a vapor cell

We measure strong radio-frequency (RF) electric fields using rubidium Rydberg atoms prepared in a room-temperature vapor cell as field sensors. Electromagnetically induced transparency is employed as

Broadband Rydberg atom based self-calibrating RF E-field probe

We present a significantly new approach for an electric (E) field probe design. The probe is based on the interaction of RF-fields with Rydberg atoms, where alkali atoms are excited optically to

Visualization of radio-frequency waves via double resonance spectroscopy of cesium atoms

A novel technique to visualize RF waves in the gigahertz frequency range based on the double resonance spectroscopy of cesium-133 atoms is developed. This technique allows one to obtain fluorescence

Rydberg electromagnetically induced transparency and Autler–Townes splitting in a weak radio-frequency electric field

We utilize an electromagnetically induced transparency (EIT) of a three-level cascade system involving Rydberg state in a room-temperature cell, formed with a cesium 6S1/2–6P3/2–66S1/2 scheme, to

Microwave assisted transparency in an M-system

In this work we theoretically study a five-level M-system whose two unpopulated ground states are coupled by a microwave (MW) field. The key feature which makes the M-system more efficient in

RF-dressed Rydberg atoms in hollow-core fibres

The giant electro-optical response of Rydberg atoms manifests itself in the emergence of sidebands in the Rydberg excitation spectrum if the atom is exposed to a radio-frequency (RF) electric field.

Two-way interconversion of millimeter-wave and optical fields in Rydberg gases

We show that cold Rydberg gases enable an efficient six-wave mixing process where terahertz or microwave fields are coherently converted into optical fields and vice versa. This process is made

Distinction between double electromagnetically induced transparency and double Autler–Townes splitting in RF-driven four-level ladder 87Rb atomic vapor

In this paper, the physical origin of interferences has been explored in a four-level cascade rubidium atom by simultaneous interaction with three energies; two optical fields and one radio frequency

Optical coherences and wavelength mismatch in ladder systems

We investigate experimentally and theoretically the coherent and incoherent processes in open three-level ladder systems in room temperature gases and identify in which regime electromagnetically

High- l Rydberg States' Interference Using a Double-Pulse Electric Field

The interference behavior of high-l Rydberg states is investigated in external fields. We prepare high-l states from an initial excited ns Cs Rydberg state by applying one electric-field pulse. The



Tunable atomic magnetometer for detection of radio-frequency magnetic fields.

An alkali-metal magnetometer for detection of weak magnetic fields in the radio-frequency (rf) range is described and magnetic field sensitivity of 2 fT/Hz(1/2) at a frequency of 99 kHz with a resonance width of 400 Hz is demonstrated.

Precision measurements of absorption and refractive-index using an atomic candle

This paper demonstrates a novel and potentially very precise method for making intensity measurements based on the atomic stabilization of electromagnetic field-strength, and discusses proof-of-principle experiments demonstrating the atomic candle's ability to make precise measurements of absorption coefficients and indices of refraction.

Atomic Stabilization of Electromagnetic Field Strength Using Rabi Resonances

For nearly fifty years, atomic resonances have been employed to stabilize electromagnetic field frequency. Here, a dynamical Rabi resonance, associated with an alkali atom's ground state hyperfine

Millimeter-wave spectroscopy of cold Rb Rydberg atoms in a magneto-optical trap: Quantum defects of the ns, np, and nd series

By using a magneto-optical trap we have measured the Rb ns-(n+1)s and nd{sub j}-(n+1)d{sub j} two-photon millimeter-wave transitions for 32{<=}n{<=}37, observing 100-kHz-wide resonances, in spite of

Electromagnetically induced transparency : Optics in coherent media

Coherent preparation by laser light of quantum states of atoms and molecules can lead to quantum interference in the amplitudes of optical transitions. In this way the optical properties of a medium

Sub-projection-noise sensitivity in broadband atomic magnetometry.

Sub-projection-noise sensitivity of a broadband atomic magnetometer is demonstrated using quantum nondemolition spin measurements using a cold, dipole-trapped sample of rubidium atoms, which provides a long-lived spin system in a nonmagnetic environment.

Measurement of absolute transition frequencies of 87Rb nS and nD Rydberg states by means of electromagnetically induced transparency

We report the measurement of absolute excitation frequencies of {sup 87}Rb to nS and nD Rydberg states. The Rydberg transition frequencies are obtained by observing electromagnetically induced

Measurement of the electric dipole moments for transitions to rubidium Rydberg states via Autler–Townes splitting

We present the direct measurements of electric dipole moments for 5P3/2→nD5/2 transitions with 20<n<48 for rubidium atoms. The measurements were carried out in an ultracold sample via observation of

Coherent Excitation of Rydberg Atoms in Thermal Vapor Microcells

The coherent control of mesoscopic ensembles of atoms and Rydberg atom blockade are the basis for proposed quantum devices such as integrable gates and single photon sources. So far, experimental

Standard antennas for electromagnetic interference measurements and methods to calibrate them

This tutorial paper discusses various standard antennas for measuring radio-frequency electric and magnetic fields. A theoretical analysis of each antenna's receiving characteristics is summarized