Fig. 5: Extended experimental setup.
From: Strong optomechanical coupling at room temperature by coherent scattering
A 1064 nm Mephisto laser (yellow) traps a silica particle of d = 177 nm inside a high finesse cavity (purple). The trap light is locked at a variable detuning Δ + FSR from the cavity resonance via the Pound-Drever-Hall technique by detecting the error signal on a photodiode (PDH). The particle motion is detected in backreflection (BR) and balanced forward detection (FS). The intracavity field is estimated from the transmitted power detected on a photodiode (CO).
