Sub quantum noise limited position sensors for gravitational wave detectors

LIGO Hanford Observatory

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.


Tagged in Honours projects - Physics, Honours in Physics subtheme - Gravitational waves, Honours in Physics subtheme - Optics lasers and photonics, Honours in Physics subtheme - High-energy astrophysics, Honours Projects - David Ottaway, Honours Projects - Daniel Brown