Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

International Kharkiv Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves

Microwave spectrometer for Rydberg state atoms: Last improvements

N. L. Pogrebnyak, Stanislav F. Dyubko, E. A. Alekseev, A. A. Meshcheryakov, A. I. Tkachev

Published Jun 1, 2016• 0 citations
Publisher

Abstract

The results of essential improvement of the microwave spectrometer for investigation of spectra of Rydberg state atoms are presented. The spectrometer was equipped by a new time domain (waveform) acquisition system, which allowed us to apply time selection of useful signal. Such solution significantly improved signal-to-noise ratio of recorded spectra. The result of test measurement of a microwave transition between Rydberg states of magnesium atom is presented.

DOI
10.1109/msmw.2016.7538033

Related papers

Laser-Microwave Spectrometer for Studying Mercury Atoms in Rydberg States

Stanislav F. Dyubko, Mykola L. Pogrebnyak, E. A. Alekseev +1 more

A modification of the laser - microwave spectrometer for studying mercury atoms in Rydberg np and nf states is presented. To test the operability of the performed modification of the laser pump system, the optical excitation spectrum of Rydberg states of mercury atoms was recorded. From the ground 61S0 state to Rydberg np and nf states mercury atoms were excited according to a two-stage scheme: to the intermediate 61D2 with two-photon absorption of the second harmonic radiation from the Rhodamine 560 dye laser, and from the intermediate state to np and nf states by the radiation of a LDS-751 dye laser, which may be tuned in the wavelength range from 751 nm to 790 nm. The performed tests show the operability of the selected scheme for pumping mercury atoms into Rydberg states.

IEEE Ukrainian Microwave Week (UkrMW)•Sep 21, 2020•0 citations

Rydberg Microwave-Frequency-Comb Spectrometer

Lihua Zhang, Zong-Kai Liu, Bang Liu +4 more

The developing frequency-comb spectral technologies have potential applications and prospects in the wide fields of cosmology, meteorology, and microwave measurement. Here, we demonstrate a Rydberg microwave-frequency-comb spectrometer via multiple-microwave field dressing, providing precise microwave measurement. The Rydberg microwave-frequency-comb spectrum provides a real-time and absolute-frequency measurement with a range of 125 MHz and gives the relative phase of a single-frequency microwave signal. The reported experiment helps real-time sensing of an unknown microwave signal over a wide range using Rydberg atoms, which are vital for Rydberg-atom-based microwave metrology.

arXiv:2206.06572•Physical Review Applied•Jul 14, 2022•82 citations

Laser-microwave spectrometer for investigation of AI and AU atoms in rydberg states

Stanislav F. Dyubko, V. A. Efremov, V. G. Gerasimov +2 more

In order to investigate an interaction of an electromagnetic field with Rydberg atoms it is necessary to transfer atoms from ground state to Rydberg state with specified values of quantum numbers. The point is that for each chemical element the way of producing Rydberg atom atoms is strictly individual. In this paper Al atoms are transferred to Rydberg states by nF scheme using a system of lasers and frequency converters on nonlinear crystals. The Au atoms are brought to Rydberg state by three stages of laser excitation.

International Kharkiv Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves•Nov 8, 2004•0 citations

Measurement of ^1D_2 → ^1F_3 microwave transitions in strontium Rydberg states using selective resonance ionization

William E. Cooke, Thomas F. Gallagher

A new technique for state-selective detection of highly excited atoms is reported. It is usable over a much wider range of quantum numbers than previously available methods and has excellent time resolution. The high-state selectivity is used to measure the 5s(n + 2)d,(1)D(2) ? 5snf, (1)F(3) microwave transitions in strontium for n = 38-40.

Optics Letters•Jun 1, 1979•14 citations

Microwave two-photon spectroscopy of cesium Rydberg atoms

Yongmei Xue, Yuechun Jiao, Liping Hao +1 more

We present a two-photon microwave spectra of cesium Rydberg atoms in the room-temperature vapor cell. The three-level atom including a ground state 6S1/2 (F = 4), an excited state 6P3/2 (F′ = 5) and Rydberg state consists of Rydberg electromagnetically induced transparency (Rydberg-EIT), that is employed to detect the microwave two-photon spectra. The microwave field with frequency ν DD = 11.42865 GHz couples the transition of Rydberg energy level |68D5/2〉 → |69D5/2〉, measured two-photon spectra display a rich of information including the microwave ac Stark shifts and two-photon Autler-Townes (AT) splitting. In the strong microwave field, the two-photon spectroscopy shows the state mixture between |68D5/2〉 and |68D3/2〉 Stark lines. The microwave two-photon spectra of the |69S1/2〉 → |70S1/2〉 transition coupled with frequency ν SS = 11.73503 GHz are also presented. The Floquet theory is employed to simulate the two-photon microwave spectra, showing the good agreement with the measurements. The work suggests the new method that may be used to investigate the multi-photon field-atom interaction and as an atom-based technique for precision field measurements.

Optics Express•Dec 3, 2021•8 citations

Chirped-pulse millimeter-wave spectroscopy: Spectrum, dynamics, and manipulation of Rydberg–Rydberg transitions

Anthony P. Colombo, Yan Zhou, Kirill Prozument +2 more

We apply the chirped-pulse millimeter-wave (CPmmW) technique to transitions between Rydberg states in calcium atoms. The unique feature of Rydberg-Rydberg transitions is that they have enormous electric dipole transition moments (~5 kiloDebye at n* ~ 40, where n* is the effective principal quantum number), so they interact strongly with the mm-wave radiation. After polarization by a mm-wave pulse in the 70-84 GHz frequency region, the excited transitions re-radiate free induction decay (FID) at their resonant frequencies, and the FID is heterodyne-detected by the CPmmW spectrometer. Data collection and averaging are performed in the time domain. The spectral resolution is ~100 kHz. Because of the large transition dipole moments, the available mm-wave power is sufficient to polarize the entire bandwidth of the spectrometer (12 GHz) in each pulse, and high-resolution survey spectra may be collected. Both absorptive and emissive transitions are observed, and they are distinguished by the phase of their FID relative to that of the excitation pulse. With the combination of the large transition dipole moments and direct monitoring of transitions, we observe dynamics, such as transient nutations from the interference of the excitation pulse with the polarization that it induces in the sample. Since the waveform produced by the mm-wave source may be precisely controlled, we can populate states with high angular momentum by a sequence of pulses while recording the results of these manipulations in the time domain. We also probe the superradiant decay of the Rydberg sample using photon echoes. The application of the CPmmW technique to transitions between Rydberg states of molecules is discussed.

The Journal of Chemical Physics•Jan 2, 2013•26 citations
The results of essential improvement of the microwave spectrometer for investigation of spectra of Rydberg state atoms are presented. The spectrometer was equipped by a new time domain (waveform) acquisition system, which allowed us to apply time selection of useful signal. Such solution significantly improved signal-to-noise ratio of recorded spectra. The result of test measurement of a microwave transition between Rydberg states of magnesium atom is presented.
A modification of the laser - microwave spectrometer for studying mercury atoms in Rydberg np and nf states is presented. To test the operability of the performed modification of the laser pump system, the optical excitation spectrum of Rydberg states of mercury atoms was recorded. From the ground 61S0 state to Rydberg np and nf states mercury atoms were excited according to a two-stage scheme: to the intermediate 61D2 with two-photon absorption of the second harmonic radiation from the Rhodamine 560 dye laser, and from the intermediate state to np and nf states by the radiation of a LDS-751 dye laser, which may be tuned in the wavelength range from 751 nm to 790 nm. The performed tests show the operability of the selected scheme for pumping mercury atoms into Rydberg states.
The developing frequency-comb spectral technologies have potential applications and prospects in the wide fields of cosmology, meteorology, and microwave measurement. Here, we demonstrate a Rydberg microwave-frequency-comb spectrometer via multiple-microwave field dressing, providing precise microwave measurement. The Rydberg microwave-frequency-comb spectrum provides a real-time and absolute-frequency measurement with a range of 125 MHz and gives the relative phase of a single-frequency microwave signal. The reported experiment helps real-time sensing of an unknown microwave signal over a wide range using Rydberg atoms, which are vital for Rydberg-atom-based microwave metrology.
In order to investigate an interaction of an electromagnetic field with Rydberg atoms it is necessary to transfer atoms from ground state to Rydberg state with specified values of quantum numbers. The point is that for each chemical element the way of producing Rydberg atom atoms is strictly individual. In this paper Al atoms are transferred to Rydberg states by nF scheme using a system of lasers and frequency converters on nonlinear crystals. The Au atoms are brought to Rydberg state by three stages of laser excitation.
We present a two-photon microwave spectra of cesium Rydberg atoms in the room-temperature vapor cell. The three-level atom including a ground state 6S1/2 (F = 4), an excited state 6P3/2 (F′ = 5) and Rydberg state consists of Rydberg electromagnetically induced transparency (Rydberg-EIT), that is employed to detect the microwave two-photon spectra. The microwave field with frequency ν DD = 11.42865 GHz couples the transition of Rydberg energy level |68D5/2〉 → |69D5/2〉, measured two-photon spectra display a rich of information including the microwave ac Stark shifts and two-photon Autler-Townes (AT) splitting. In the strong microwave field, the two-photon spectroscopy shows the state mixture between |68D5/2〉 and |68D3/2〉 Stark lines. The microwave two-photon spectra of the |69S1/2〉 → |70S1/2〉 transition coupled with frequency ν SS = 11.73503 GHz are also presented. The Floquet theory is employed to simulate the two-photon microwave spectra, showing the good agreement with the measurements. The work suggests the new method that may be used to investigate the multi-photon field-atom interaction and as an atom-based technique for precision field measurements.
We apply the chirped-pulse millimeter-wave (CPmmW) technique to transitions between Rydberg states in calcium atoms. The unique feature of Rydberg-Rydberg transitions is that they have enormous electric dipole transition moments (~5 kiloDebye at n* ~ 40, where n* is the effective principal quantum number), so they interact strongly with the mm-wave radiation. After polarization by a mm-wave pulse in the 70-84 GHz frequency region, the excited transitions re-radiate free induction decay (FID) at their resonant frequencies, and the FID is heterodyne-detected by the CPmmW spectrometer. Data collection and averaging are performed in the time domain. The spectral resolution is ~100 kHz. Because of the large transition dipole moments, the available mm-wave power is sufficient to polarize the entire bandwidth of the spectrometer (12 GHz) in each pulse, and high-resolution survey spectra may be collected. Both absorptive and emissive transitions are observed, and they are distinguished by the phase of their FID relative to that of the excitation pulse. With the combination of the large transition dipole moments and direct monitoring of transitions, we observe dynamics, such as transient nutations from the interference of the excitation pulse with the polarization that it induces in the sample. Since the waveform produced by the mm-wave source may be precisely controlled, we can populate states with high angular momentum by a sequence of pulses while recording the results of these manipulations in the time domain. We also probe the superradiant decay of the Rydberg sample using photon echoes. The application of the CPmmW technique to transitions between Rydberg states of molecules is discussed.