An integrated ion trapping device

Abstract

The invention discloses an integrated ion trapping device. The integrated ion trapping device comprises an atomic furnace, a magnetic shielding system and a magnetic field coil system arranged in the magnetic shielding system, and further comprises an ion trap arranged in the magnetic field coil system. The ion trap comprises two ceramic supports, wherein four radio-frequency electrodes are fixed between the two ceramic supports, every two opposite radio-frequency electrodes are symmetrically arranged, each radio-frequency electrode comprises a fixed end and a radio-frequency end, the two ceramic supports are provided with cap electrodes respectively, a cap electrode arc-face end is arranged at one end of each cap electrode, the space defined by the four radio-frequency ends and the two cap electrode arc-face ends is the central area of the ion trap, and the atomic furnace is arranged below the central area of the ion trap. An imaging lens system built in the integrated ion trapping device is quite close to the ion trapping area, the imaging solid angle is large, and the signal-noise ratio can be remarkably improved. The built-in magnetic field coil is small and exquisite in size, and accurate control over the magnetic field of the ion trapping area is facilitated. The magnetic shielding system is compact in structure, small in opening and better in shielding effect.

Description

technical field [0001] The invention relates to the field of ion trapping devices, in particular to an integrated ion trapping device, which is applicable to the fields of optical frequency standard, quantum optics, quantum information and the like. Background technique [0002] An ion trap is a device that uses electromagnetic fields to capture and imprison ions within a certain range of space. Basic ion traps can be divided into Penning traps and Paul traps according to their trapping methods. The invention mainly relates to the field of Paul traps, that is, radio frequency ion traps. The most basic radio frequency ion trap was originally invented by Wolfgang Paul in 1959 [1] and has been greatly improved in the following half century to be suitable for different purposes. It has been widely used in mass spectrometry, quantum information, quantum optics, precision measurement and many other fields. [0003] In a generalized RF ion trap, we can construct an alternating e...

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Problems solved by technology

[0017] In view of the above-mentioned problems existing in the prior art, the present invention provides an integrated ion trapping device, which solves the relatively limited imaging solid angle; the magnetic shielding system is located outside the vacuum system, and the shielding effect is poor; the overall volume of the device is relatively large; The device does not have universality and other problems

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