Related Experiment Video
Updated: Feb 14, 2026

Measurement of Bioelectric Current with a Vibrating Probe
Published on: January 4, 2011
Orbital angular momentum-enhanced measurement of rotation vibration using a Sagnac interferometer
Abstract:
We construct an experimental measurement system for rotation vibration signal detection using the orbital angular momentum (OAM) of light in a Sagnac interferometer. Inputting light beams with different OAM, we demonstrate that the measured signal and signal-to-noise ratio can be increased by the OAM mode index l. In addition, the Sagnac interferometer can further improve the vibration signal and suppress the environmental noises. Such system has potential applications in high-precision sensing and monitoring of rotation vibrations.
More Related Videos
Related Concept Videos
Angular Momentum
Conservation of Angular Momentum
Atomic Orbitals
Principle of Angular Impulse and Momentum
Angular Momentum about an Arbitrary Axis
The velocity of a mass element comprises its translational velocity and the relative velocity instigated by the body's rotation. Substituting the velocity equation into...
Conservation of Angular Momentum: Application

