Coherent perfect absorption, transmission, and synthesis in a double-cavity optomechanical system

Abstract

We study a double-cavity optomechanical system in which a movable mirror with perfect reflection is inserted between two fixed mirrors with partial transmission. This optomechanical system is driven from both fixed end mirrors in a symmetric scheme by two strong coupling fields and two weak probe fields. We find that three interesting phenomena: coherent perfect absorption (CPA), coherent perfect transmission (CPT), and coherent perfect synthesis (CPS) can be attained within different parameter regimes. That is, we can make two input probe fields totally absorbed by the movable mirror without yielding any energy output from either end mirror (CPA); make an input probe field transmitted from one end mirror to the other end mirror without suffering any energy loss in the two cavities (CPT); make two input probe fields synthesized into one output probe field after undergoing either a perfect transmission or a perfect reflection (CPS). These interesting phenomena originate from the efficient hybrid coupling of optical and mechanical modes and may be all-optically controlled to realize novel photonic devices in quantum information networks.

Optomechanically induced amplification and perfect transparency in double-cavity optomechanics

“…In our previous work [39], we investigated coherent perfect transmission and absorption in a double-cavity optomechanical system in which the mechanical resonator (MR) is totally reflective [23,[40][41][42][43][44], driven by two pump fields applied to the mechanical red sideband. In this paper, we study optomechanically induced amplification and perfect transparency in the same system under a different type of driving.…”

Nonreciprocal interference and coherent photon routing in a three-port optomechanical system

“…In this way, we can define the normalized output energy [21] of cavity mode a j as S j = |a j,out− /a j,in− | 2 = | √ κ ex,j a j− /ε s − 1| 2 .…”

“…For example, optomechanically induced transparency (OMIT) [14][15][16], which is the optomechanical analogue of electromagnetically induced transparency (EIT) [17,18], arises from the destructive interference between the probe signal and anti-Stokes field. Compared with simple two-mode cases, multimode optomechanical systems may exhibit richer quantum behaviors due to the multiple interference paths, such as topological energy transfer [19], coherent perfect absorption (CPA) and synthesis (CPS) [20][21][22], ultra-narrow linewidth [23], and two-mode squeezing [24,25].…”

All-optical photon switching, router and amplifier using a passive-active optomechanical system

“…Our passive-active system exhibits a controllable photon transport by adjusting the strengths of control fields, relative phase of probe fields and the gain of the active cavity where all the relevant parameters are readily and precisely changed in experiments. It is worth pointing out that the frequency-independent perfect reflection (FIPR), which arises in the gain-lossbalanced case, is very different from the phenomena in passive-passive systems such as coherent perfect absorption (CPA), coherent perfect transmission (CPT) and so on which arise only in specific parameter regions and especially rely on the frequency of probe field [32,33], is independent of all other parameters once the specific condition is met. Moreover, one can further realize tunable fast and slow light in each case discussed in this paper, which is effortless and feasible in experiments.…”