Structure and symmetry in coherent perfect polarization rotation

Crescimanno, Michael; Zhou, Chuanhong; Andrews, James H.; Baker, Michael A.

doi:10.1103/physreva.91.013845

Cited by 10 publications

(7 citation statements)

References 39 publications

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“…The underlying physics of CPA is a joint action of the system disspation and the destructive interference between the transmitted and reflected fields [2,4]. Due to wide potential applications [5][6][7] in optical communications and photonic devices such as transducers, modulators, optical switches and transistors, CPA has attracted considerable interest [2][3][4][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Coherent perfect absorption in a weakly coupled atom-cavity system

Xiong

Chen²,

Fang

et al. 2020

Phys. Rev. A

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We study coherent perfect absorption (CPA) theoretically based on a weakly coupled atom-cavity system with an optically pumped second-order nonlinear crystal (SOC) embedded in the cavity. Our system does not require a strong coupling, which is often needed for CPA in previous studies but is challenging to implement experimentally in some systems. The role of the SOC is to introduce a tunable effective decay rate of the cavity, which can lead to CPA in the weak coupling regime. The proposed system exhibits bistable behaviors, with bistable patterns switchable between conventional and unconventional shapes. By varying the properties of the SOC, the operation point of CPA can be tuned to be inside or outside the bistable regime. It can also be located at the upper or the lower stable branch or even the unstable branch of the bistable hysteresis loop. It is however robust against the parameters of the SOC for any fixed effective decay rate. Our system can potentially be applied to realize optical devices such as optical switches in the weakly coupled regime.

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Section: Introductionmentioning

confidence: 99%

Coherent perfect absorption in a weakly coupled atom-cavity system

Xiong

Chen²,

Fang

et al. 2020

Phys. Rev. A

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“…Recently it has been shown that the light fields coupled to an optical cavity with an intra-cavity absorber can be completely absorbed and no light can escape through the cavity [3][4][5][6][7][8]. Such a cavity-absorber system acts as a coherent perfect absorber and may be useful for a variety of fundamental studies and practical applications [9][10][11][12][13][14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Interference control of perfect photon absorption in cavity quantum electrodynamics

Wang

Zhu

et al. 2017

Phys. Rev. A

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We propose and analyze a scheme for controlling coherent photon transmission and reflection in a cavity-quantum-electrodynamics (CQED) system consisting of an optical resonator coupled with three-level atoms coherently prepared by a control laser from free space. When the control laser is off and the cavity is excited by two identical light fields from two ends of the cavity, the two input light fields can be completely absorbed by the CQED system and the light energy is converted into the excitation of the polariton states, but no light can escape from the cavity. Two distinct cases of controlling the perfect photon absorption are analyzed: (a) when the control laser is tuned to the atomic resonance and creates electromagnetically induced transparency, the prefect photon absorption is suppressed and the input light fields are nearly completely transmitted through the cavity; (b) when the control laser is tuned to the polariton state resonance and inhibits the polariton state excitation, the perfect photon absorption is again suppressed and the input light fields are nearly completely reflected from the cavity. Thus, the CQED system can act as a perfect absorber or near perfect transmitter/reflector by simply turning off or on of the control laser. Such interference control of the coherent photon-atom interaction in the CQED system should be useful for a variety of applications in optical logical devices.

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“…It has been enabled to control light in an efficient and coherent way. [18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33] Normally, the coherent perfect photon absorption is occurring when two or more coherent lights overlap, leading to a spatial redistribution of energy. In other words, it is based on the destructive interference between the input lights.…”

Section: Introductionmentioning

confidence: 99%

Perfect photon absorption based on the optical parametric process*

Zhang

et al. 2021

Chinese Phys. B

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The perfect photon absorption is studied in a cavity quantum electrodynamics (CQED) system, in which an optical parameter amplifier (OPA) is coupled to the cavity mode. This makes it possible to control the optical phase to realize the perfect photon absorption. It is found that in the presence of one and two injected fields, the perfect photon absorption is present in these two cases and can be controlled by adjusting the parametric phase. Moreover, different from the previous predictions of perfect photon absorption in atomic CQED systems, the perfect photon absorption can be changed significantly by the relative phase. Our work provides a new platform to use the parametric processes to make an available way to control the behaviors of photons and to take advantage of the optical phase to achieve the perfect photon absorption.

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Structure and symmetry in coherent perfect polarization rotation

Cited by 10 publications

References 39 publications

Coherent perfect absorption in a weakly coupled atom-cavity system

Coherent perfect absorption in a weakly coupled atom-cavity system

Interference control of perfect photon absorption in cavity quantum electrodynamics

Perfect photon absorption based on the optical parametric process*

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