Nanomechanical oscillators have recently neared access to radiation pressure shot noise from free-space optical fields. This advance would open a fertile landscape at the interface of quantum imaging and optomechanics, in which the full spatiotemporal quantum state of light can be brought to bear on optomechanical sensing and control. I’ll discuss our efforts towards three landmarks in imaging-based quantum optomechanics—(1) observation of spatiotemporal (multi-mode) radiation pressure shot noise, (2) quantum-enhanced imaging of a mechanical oscillator using multi-mode squeezed light, and (3) quantum control of a mechanical oscillator using spatiotemporal radiation pressure feedback—by combining ultrahigh-Q nanomechanical resonators and low-loss spatial mode demultiplexing (SPADE) technology. From a different perspective, the project serves as a powerful platform for studying the quantum limits of SPADE-based imaging, with applications to telecommunications, astronomy, and microscopy.
Wilson et al. (Wed,) studied this question.
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