Manipulation of optomechanically induced transparency and absorption by indirectly coupling to an auxiliary cavity mode

Abstract

We theoretically study the optomechanically induced transparency (OMIT) and absorption (OMIA) phenomena in a single microcavity optomechanical system, assisted by an indirectly coupled auxiliary cavity mode. We show that the interference effect between the two optical modes plays an important role and can be used to control the multiple-pathway induced destructive or constructive interference effect. The three-pathway interference could induce an absorption dip within the transparent window in the red sideband driving regime, while we can switch back and forth between OMIT and OMIA with the four-pathway interference. The conversion between the transparency peak and absorption dip can be achieved by tuning the relative amplitude and phase of the multiple light paths interference. Our system proposes a new platform to realize multiple pathways induced transparency and absorption in a single microcavity and a feasible way for realizing all-optical information processing.

Multimode Interference Induced Optical Routing in an Optical Microcavity

“…[71]. Compared with previous work, [ 17 ] our scheme increases the disturbance of the nanoparticles in the optical microcavity, the splitting of optical modes provides more interference paths. Due to the coupling of CW and CCW mode, the signal can be emitted from all four ports through scattering, making the realization of four port devices possible.…”

“…As a promising platform for realizing quantum electrodynamics, cavity optomechanics in optical microcavity have been widely investigated theoretically and experimentally. [14][15][16][17][18][19] Early studies are restricted to basic optomechanical models with one optical mode and one mechanical mode, models with multimode interaction, which couples multiple optical modes to a mechanical mode, exhibit richer physics DOI: 10.1002/andp.202000506 phenomena such as optomechanical induced transparency (OMIT) [20][21][22][23][24][25][26][27] and absorption (OMIA) [28,29] and shows enormous potential in applications ranging from quantum information processing, [30][31][32][33][34][35][36][37][38][39] state transfers [40][41][42] to optomechanically induced nonreciprocity. [43][44][45][46][47][48][49][50][51] Optical router is a key element for controlling the path of signal flow in quantum and classical network.…”

Tunable partial polarization beam splitter and optomechanically induced Faraday effect

“…High-quality whispering gallery mode (WGM) microcavities [39] have potential value in investigating fundamental physics and practical technologies such as cavity optomechanics [40][41][42][43][44][45][46][47][48][49][50][51], low-threshold lasing [52][53][54][55][56][57], quantum sensing [58][59][60][61][62][63][64][65][66], and nonlinear optics [42,[67][68][69][70] due to their ability to enhance light-matter interactions. Characterized by exploring the radiation pressure interaction between optical modes and mechanical modes, optomechanics exhibits rich physical phenomena such as optomechanically induced transparency (OMIT) [41,42,48,71], absorption (OMIA) [48,72,73], and optomechanically induced Faraday effect (OMIFE) [74]. These effects enable a new degree of light control and achieve arbitrary tailoring of the input lights in optomechanical systems.…”

Optical nonreciprocal response and conversion in a Tavis‐Cummings coupling optomechanical system

“…Such hybrid systems are called Tavis-Cummings coupling optomechanical system, which has attracted wide attention. In the hybrid system, the cavity field interacts with mechanical resonator and few-level system simultaneously, which can lead to quantum interference effects and amazing optomechanical phenomena, for instance, EIT and EIA, [20][21][22] sensing, 23,24 quantum repeater, 25 interaction with an atomic ensemble may be used to produce entanglement, optomechanical cooling, backaction evading measurements of mechanical motion. [26][27][28][29] On the other hand, COM-based optical nonreciprocal phenomena have also attracted significant interest in the decades, which means that the transmission of signals in two opposite directions exhibits different characteristics.…”