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

Acta Physica Sinica

EXPERIMENTAL STUDY OF RELATIONS BETWEEN ｜ml｜ AND FIELD STARK IONIZATION THRESHOLD IN RYDBERG Cs ATOMS

DING GUANG-LIANG, LIU BING-MO, Jia‐Min Wang, Shunsheng Gong, 中国科学院武汉物理研究所

Published Jan 1, 1994• 0 citations
Publisher

Abstract

The experimental study of the relations between ｜ml｜ and field ionization thresholds of Stark components in Rydberg states of atomic cesium is reported. The three expressions of ionization thresholds of ｜ml｜=0，1,2 in atomic cesium are obtained completely from the same experiment.
DOI
10.7498/aps.43.1754

Related papers

EXPERIMENTAL STUDY OF RELATIONS BETWEEN |m_l| AND FIELD STARK IONIZATION THRESHOLD IN RYDBERG Cs ATOMS DING GuANG- LIANG LIU BINct-MO

J Wang

Abstract The experimental study of the relations between |m_l| and field ionization thresho- lds of Stark components in Rydberg states of atomic cesium is reporte The threeexpressions of ionization thresholds of |m_l|=0,1, 2 in atomic cesium are obtainedcompletely from the same experiment.

Acta Physica Sinica•Jan 1, 1994•0 citations

Experimental investigation of Stark effect of ultra-cold 39D cesium Rydberg atoms

Xingbo Zhu, Hao Zhang, Zhigang Feng +5 more

In this paper, we investigate the Stark effect of ultra-cold 39D cesium Rydberg atoms in low-field. The Stark structure of 39D Rydberg states is calculated numerically. The cold cesium atoms are excited to Rydberg states via two-step process and the Stark spectra are obtained by field-ionization method. The scalar and tenson polarizabilities of 39D cesium Rydberg atoms are measured to be α5/22=62(7) MHz·V-2cm2，α5/20=－146(13) MHz·V-2cm2, α3/22=73(6) MHz·V-2cm2，α3/20=－106(20) MHz·V-2cm2 respectively. The experimental values are in agreement with the theoretical results.

Acta Physica Sinica•Jan 1, 2010•10 citations

Measurement of Ionization Threshold of Ultracold Cesium Rydberg Atoms in Static Electric Field

Zhigang Feng, Linjie Zhang, Jianming Zhao +3 more

We investigate the field ionization spectra of ultracold cesium Rydberg atoms in dc electric field. The ionization thresholds of different electric fields are measured and shift of the ionization threshold relative to field-free ionization threshold is accurately described by (6.06 ± 0.14) F 1/2 , which is in good agreement with the classical saddle-point model for field ionization. We obtain the field-free ionization threshold of cesium (6P 3/2 ) as 19674.89 ± 2.99 cm −1 by fitting experimental data.

Chinese Physics Letters•Jul 1, 2008•5 citations

DEPENDENCE OF FIELD-IONIZATION THRESHOLD ON |ml| FOR RYDBERG STATES OF Sr ATOM

LI JING, XU YUN-FEI, WANG YUN-XIAN +2 more

We have obtained Rydberg atom of different |ml| value by two-step excitation using polarized lasers. The field-ionization thresholds for 5snd (n= 22-27), | ml| =0,1,2 Rydberg states of Sr atom is measured by using a pulse electric field (up to 2.4kV/cm). Second-order approximate formula of field-ionization threshold that depend on the |ml| value is obtained and compared with the measured data.

Acta Physica Sinica•Jan 1, 1993•0 citations

Cesium Rydberg-state ionization study by three-dimensional ion-electron correlation: Toward a monochromatic electron source

Raphaël Hahn, Azer Trimeche, C. Lopez +2 more

We study the excitation and ionization of cesium Rydberg states in an electric field ($\ensuremath{\approx}\phantom{\rule{0.16em}{0ex}}2200\phantom{\rule{4pt}{0ex}}\mathrm{V}/\mathrm{cm}$) near the classical field-ionization threshold ($\ensuremath{\approx}\ensuremath{-}280\phantom{\rule{4pt}{0ex}}{\mathrm{cm}}^{\ensuremath{-}1}$ binding energy) by three-dimensional (3D) ion-electron coincidence spectroscopy. Cesium atoms are produced by an effusive oven and excited with lasers to Stark-shifted Rydberg states or directly ionized. Using a double time-of-flight setup we record 3D ($X, Y$, time of flight) coincidence imaging of electrons and ions. Above-threshold photoionization creates broad images with poor electron-ion spatial correlation. Fast ionizing states produce very good correlations and the images reveal the electric-field map of the ionization region. Slow ionizing states show that the relatively high atomic velocity is detrimental to the correlations. Experimental data are accurately reproduced by detailed Monte Carlo excitation and ionization simulations based on Stark maps obtained with local-frame transformation (LFT) theory. Agreement between our spectroscopic experiment and LFT theory is very good, with better that hundreds of megahertz accuracy. But, on rare particular states, several gigahertz discrepancy is found. This study can be used to select appropriate states for the creation of ion and electron beams with high brightness, good correlation, and low energy dispersion.

Physical Review A•Apr 30, 2021•7 citations

Field Ionization Multiple Thresholds for 5snd 1D 2 Rydberg States of Atom Sr.

Qiu Ji

Experimental determinations and theoretic calculations are respectively carried out on the field ionization thresholds at various Rydberg states of atom Sr 5snd 1D 2( n=22～27),|m|= 0,1,2. Any possible impact upon field ionization made by such factors as Stark shift of energy level in the process of field ionization, adiabatic or diabatic passage of ionization and environmental thermal radiation is discussed.

Journal of Zhejiang University(Sciences Edition)•Jan 1, 1999•0 citations
In this paper, we investigate the Stark effect of ultra-cold 39D cesium Rydberg atoms in low-field. The Stark structure of 39D Rydberg states is calculated numerically. The cold cesium atoms are excited to Rydberg states via two-step process and the Stark spectra are obtained by field-ionization method. The scalar and tenson polarizabilities of 39D cesium Rydberg atoms are measured to be α5/22=62(7) MHz·V-2cm2，α5/20=－146(13) MHz·V-2cm2, α3/22=73(6) MHz·V-2cm2，α3/20=－106(20) MHz·V-2cm2 respectively. The experimental values are in agreement with the theoretical results.
We investigate the field ionization spectra of ultracold cesium Rydberg atoms in dc electric field. The ionization thresholds of different electric fields are measured and shift of the ionization threshold relative to field-free ionization threshold is accurately described by (6.06 ± 0.14) F 1/2 , which is in good agreement with the classical saddle-point model for field ionization. We obtain the field-free ionization threshold of cesium (6P 3/2 ) as 19674.89 ± 2.99 cm −1 by fitting experimental data.
We study the excitation and ionization of cesium Rydberg states in an electric field ($\ensuremath{\approx}\phantom{\rule{0.16em}{0ex}}2200\phantom{\rule{4pt}{0ex}}\mathrm{V}/\mathrm{cm}$) near the classical field-ionization threshold ($\ensuremath{\approx}\ensuremath{-}280\phantom{\rule{4pt}{0ex}}{\mathrm{cm}}^{\ensuremath{-}1}$ binding energy) by three-dimensional (3D) ion-electron coincidence spectroscopy. Cesium atoms are produced by an effusive oven and excited with lasers to Stark-shifted Rydberg states or directly ionized. Using a double time-of-flight setup we record 3D (X,YX, YX,Y, time of flight) coincidence imaging of electrons and ions. Above-threshold photoionization creates broad images with poor electron-ion spatial correlation. Fast ionizing states produce very good correlations and the images reveal the electric-field map of the ionization region. Slow ionizing states show that the relatively high atomic velocity is detrimental to the correlations. Experimental data are accurately reproduced by detailed Monte Carlo excitation and ionization simulations based on Stark maps obtained with local-frame transformation (LFT) theory. Agreement between our spectroscopic experiment and LFT theory is very good, with better that hundreds of megahertz accuracy. But, on rare particular states, several gigahertz discrepancy is found. This study can be used to select appropriate states for the creation of ion and electron beams with high brightness, good correlation, and low energy dispersion.