Light-Shift-Free and Dead-Zone-Free Atomic-Orientation-Based Scalar Magnetometry Using a Single Amplitude-Modulated Beam

  title={Light-Shift-Free and Dead-Zone-Free Atomic-Orientation-Based Scalar Magnetometry Using a Single Amplitude-Modulated Beam},
  author={Qianqian Yu and Siqi Liu and Chunqi Yuan and Dong Sheng},
  journal={Physical Review Applied},
Detection dead zones and heading errors induced by light shifts are two important problems in optically pumped scalar magnetometry. We introduce an atomic orientation based single-beam magnetometry scheme to simultaneously solve these problems, using a polarization-reversing and path-bending Herriott cavity. Here, a reflection mirror is inserted into the cavity to bend the optical paths in the middle, and divide them into two separated orthogonal regions to avoid the detection dead zone… 

Figures from this paper


Recording brain activities in unshielded Earth’s field with optically pumped atomic magnetometers
This work introduces an unshielded MEG system based on optically pumped atomic magnetometers, and builds an atomic magnetic gradiometer, together with feedback methods, to reduce the environment magnetic field noise.
Search for topological defect dark matter with a global network of optical magnetometers
The search for transient signals from the domain walls of axion-like particles by using the global network of optical magnetometers for exotic (GNOME) physics searches finds no statistically significant signals, thus placing experimental constraints on such dark matter scenarios.
Spatial frequency isotropy of an optically pumped 4He magnetometer
Optically pumped magnetometers are scalar magnetometers which are particularly suitable for mobile applications for which it is necessary to use an isotropic sensor. Our group has recently designed a
Space-based magnetometers
The general characteristics and system level concepts for space-based magnetometers are presented to illustrate the instruments, principles, and tools involved in making accurate magnetic field
Chip-scale atomic devices
Chip-scale atomic devices combine elements of precision atomic spectroscopy, silicon micromachining, and advanced diode laser technology to create compact, low-power, and manufacturable instruments
and a at
The xishacorene natural products are structurally unique apolar diterpenoids that feature a bicyclo[3.3.1] framework. These secondary metabolites likely arise from the well-studied, structurally
A prototype probability package named APPL (A Probability Programming Language) is presented that can be used to manipulate random variables and examples illustrate its use.
Aaron Beck’s cognitive therapy model has been used repeatedly to treat depression and anxiety. The case presented here is a 34-year-old female law student with an adjustment disorder with mixed
  • Rev. A 80, 013416
  • 2009