ABSTRACT
In this chapter we introduce the fundamental radiation pressure interaction between a mechanical element and a cavity field that lies at the core of cavity optomechanics. We begin by deriving the full interaction Hamiltonian for dispersive optomechanics within an optical cavity, and briefly introducing the range of opto-and electomechanical implementation of cavity optomechanics and their relevant decoherence rates. We then examine the semiclassical dynamics of cavity optomechanical systems touching on optomechanical bistability that is exhibited by them. We derive the linearised optomechanical Hamiltonian and finally introduce the concept of dissipative optomechanics.
At its most basic level, the radiation pressure interaction between light and matter involves an exchange of momentum between light and a mechanical
