Performance of radio frequency source based on electronic tube 
oscillation circuit for ion traps

doi:10.3969/j.issn.1007-5461.2025.02.008

Chinese Journal of Quantum Electronics ›› 2025, Vol. 42 ›› Issue (2): 229-237.doi: 10.3969/j.issn.1007-5461.2025.02.008

• Quantum Optics • Previous Articles Next Articles

Performance of radio frequency source based on electronic tube oscillation circuit for ion traps

XU Huaxuan 1# , AO Zhiyuan 2,3# , LI Lin 2,3 , LI Zi 2,3* , HE Shengguo2* , TONG Xin2

1 School of Physics and Technology, Wuhan University, Wuhan 430072, China; 2 State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China; 3 University of Chinese Academy of Sciences, Beijing 100049, China

Received:2023-08-03 Revised:2023-09-03 Published:2025-03-28 Online:2025-03-28
About author:徐华轩 ( 2002 - ), 四川成都人, 主要从事微电子方面的研究。E-mail: xuhuaxuan2333@whu.edu.cn; 敖致远 ( 1999 - ), 云南曲靖人, 研究生, 主要从事超冷氢分子离子精密光谱方面的研究。E-mail: aozhiyuan@apm.ac.cn

Abstract

Abstract: In order to achieve the stable confinement of ions in ion traps, a radio frequency (RF) source based on electronic tube oscillation circuit is constructed in this work. The device can simultaneously generate two RF electric fields with equal amplitudes and opposite phases, and its output frequencies are continuously adjustable ranging from 2.15 MHz to 4.05 MHz without active impedance matching. Over a continuous measurement period of 4.68 × 104 s, the stabilities of frequency, phase difference, and dual channel voltage peak-to-peak values of the RF source are evaluated after being installed on an ion trap, and the minimum Allan derivations of each parameter's stability are obtained to be 10−5 , 10−4 , and 10−4 orders of magnitude, respectively. Furthermore, calcium ions are successfully confined in the ion trap equipped with the designed RF source, and by continuous adjusting the RF frequency and amplitude without turning off the RF source, the structural variations of the calcium ion Coulomb crystal are observed by CCD camera.

Key words: optoelectronics, radio frequency source, frequency adjustment, stability, Allan derivation

CLC Number:

O441.4

XU Huaxuan # , AO Zhiyuan , # , LI Lin , , LI Zi , , HE Shengguo , TONG Xin. Performance of radio frequency source based on electronic tube oscillation circuit for ion traps[J]. Chinese Journal of Quantum Electronics, 2025, 42(2): 229-237.

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Performance of radio frequency source based on electronic tube oscillation circuit for ion traps

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