Diamond electro-optomechanical resonators integrated in nanophotonic circuits

TL;DR

This paper demonstrates active modulation of diamond nanophotonic circuits using electro-mechanical resonators with high quality factors, enabling sensitive readout of mechanical modes up to 115 MHz under ambient conditions.

Contribution

It introduces integrated diamond electro-optomechanical resonators with high quality factors for active modulation and high-sensitivity readout in nanophotonic circuits.

Findings

High quality factors up to 9600 achieved

Mechanical modes excited up to 115 MHz

Nanomechanical response observed under ambient conditions

Abstract

Diamond integrated photonic devices are promising candidates for emerging applications in nanophotonics and quantum optics. Here we demonstrate active modulation of diamond nanophotonic circuits by exploiting mechanical degrees of freedom in free-standing diamond electro-optomechanical resonators. We obtain high quality factors up to 9600, allowing us to read out the driven nanomechanical response with integrated optical interferometers with high sensitivity. We are able to excite higher order mechanical modes up to 115 MHz and observe the nanomechanical response also under ambient conditions.