论文标题
使用所有光学标量原子磁力计的矢量测量值
Vector Measurements Using All Optical Scalar Atomic Magnetometers
论文作者
论文摘要
使用与标量操作相关的固有参数，使用全光标度原子磁力计证明了矢量场测量值。钟形型原子磁力计通过探针束的谐振吸收来测量剖腹原子的拉摩尔进动。虽然探针信号的交流分量用于场幅度测量，但探针DC信号包含有关极角的信息，该信息定义为磁场和探针束之间的角度。来自探针梁的频率调制引起的轻移诱导的磁场获得了其他极角信息。在测量时间为100毫秒的时间内，使用商业小型传感器在最佳传感器方向上实现了高于0.02度的灵敏度。在整个极性角度范围内，检查角度测量精度与光学编码器进行检查。在大多数固定的极角度上记录了比1度误差要好。也具有两个正交传感器的方位角测量。
Vector field measurement is demonstrated with an all-optical scalar atomic magnetometer using intrinsic parameters related to its scalar operation. The Bell-Bloom type atomic magnetometer measures the Larmor precession of cesium atoms through on-resonant absorption of a probe beam. While the AC component of the probe signal is used for the field magnitude measurement, the probe DC signal contains information about the polar angle, defined as the angle between the magnetic field and the probe beam. Additional polar angle information is obtained from the light-shift-induced magnetic field caused by the frequency modulation of the probe beam. With a measurement time of 100 milliseconds, better than 0.02 degree sensitivity has been achieved using a commercial miniaturized sensor at the optimal sensor orientation. The angle measurement accuracy is checked against an optical encoder over the entire polar angle range of 0 to 180 degrees. Better than 1 degree error is recorded over most set polar angles. Azimuthal angle measurement is also exhibited with two orthogonally oriented sensors.
