Optomechanics

Optomechanics is a field of physics that studies the interaction between light and mechanical motion. It explores how optical forces, such as radiation pressure, can be used to manipulate and sense the motion of tiny mechanical objects. Conversely, it also investigates how the mechanical motion of these objects can affect the properties of light. This typically involves using optical resonators, like tiny mirrors or cavities, where light can be confined.

The interaction can lead to phenomena such as cooling the mechanical motion of an object to very low temperatures, approaching its quantum ground state. This is crucial for ultra-precise measurements. Optomechanical systems can be used as highly sensitive sensors for detecting minute displacements, forces, or changes in mass. Applications range from fundamental physics research, such as testing quantum mechanics at macroscopic scales, to practical technologies like advanced accelerometers, gravimeters, and novel forms of optical switches and modulators. The field bridges quantum optics and condensed matter physics, offering a unique platform for exploring quantum phenomena in mechanical systems.