Optomechanical non-reciprocity and its equivalence to antiresonance: Control of isolation frequency using mechanical drive

• URL: http://arxiv.org/abs/2006.08612v1
• Date: Mon, 15 Jun 2020 09:00:56 GMT
• Title: Optomechanical non-reciprocity and its equivalence to antiresonance: Control of isolation frequency using mechanical drive
• Abstract summary: We show that optomechanical non-reciprocity is equivalent to the anti-resonance. For a particular frequency (the so-called isolation frequency) of input signal, maximum non-reciprocity can be achieved.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We demonstrate that optomechanical non-reciprocity is equivalent to the anti-resonance, often discussed in the context of coupled driven harmonic oscillators. We show that that suitable phase-difference between the cavity driving fields make the relevant optomechanical couplings complex, which leads to non-reciprocity in the field fluctuations and anti-resonance in average field amplitudes. This analogy with anti-resonance demonstrates that only for a particular frequency (the so-called isolation frequency) of input signal, maximum non-reciprocity can be achieved. In contrast to the previous studies, we here show that one can dynamically control this isolation frequency by applying a mechanical drive of suitable frequency to the membrane in the optomechanical setup.

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