Sub quantum noise limited position sensors for gravitational wave detectors

Courtesy: National Science Foundation
Our current ability to detect high mass blackholes is limited by significant excess noise in the low frequency band of the gravitational wave detectors.
A contributor to this is the noise present in the position sensors used to damp the suspension modes of the test masses. A fundamental limitation of these detectors is photon shot noise or quantum noise and detector noise.
In this project you will investigate a new laser-based position detector that will hopefully surpass these limits and allow the low frequency performance of gravitational wave detectors to improved.
Supervisors
- David Ottaway | Dan Brown
- Research area: Optics, lasers and photonics