Quantum eye: Lattice plasmon effect on quantum fluctuations and photon detection

IEEE J. Select. Topics Quantum Electron.

2020

Self Cite

Entanglement between optical mode and microwave mode is a critical issue in illumination systems. Traditionally, optomechanical systems are applied to couple the optical mode to microcavity modes. However, due to some restrictions of this system such as sensitivity to the thermal noise at room temperature, a novel optoelectronic system is designed in this study to fix the recent system problems. Unlike recent optomechanical systems, the optical modes are directly coupled to the microwave cavity through the optoelectronic elements with no need mechanical system. The main objective of this work is to generate the entangled modes at room temperature. For this purpose, we theoretically analyze the dynamics of motion of the optoelectronic system with the Heisenberg-Langevin equations, from which one can calculate the coupling between optical and microcavity modes. The most important feature of this system is the coupling between optical mode and microwave cavity mode, which is done using a photodetector and a Varactor diode. Hence, by controlling the photodetector current (photocurrent), which is dependent on the optical cavity incidence wave and the Varactor diode biased, which is the function of the photocurrent, the coupling between the optical and microcavity mode is fully done. The modeling results show that the coupled modes are entangled at the room temperature with no need to any mechanical parts.

Section: B Optoelectronic System Dynamics Of Motionsmentioning

confidence: 99%

Section: B Optoelectronic System Dynamics Of Motionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Optical and Microcavity Modes Entanglement by Means of Plasmonic Opto-Mechanical System

Salmanogli¹,

IEEE J. Select. Topics Quantum Electron.

2020

Self Cite

“…Lattice plasmon is generated by an array of the plasmonic NPs and show much e cient coupling to quantum dot (QD) than the sole NPs [14,15]. This type of plasmon is strongly contributed to the retarded eld effect of a chain of NPs [19,20] in which NPs near eld interact with the photonic mode at the far eld.…”

Section: Introductionmentioning

confidence: 99%

Quantum Dot Transition Rate Modifying by Coupling to Lattice Plasmon

HATEM

Salmanogli

2023

Preprint

In this study, a plasmonic system coupled to a quantum dot is defined to generate the entanglement between two non-simultaneous emitted output modes. The quantum dot with three energy levels creates two different transition rates by which non-simultaneous photons are emitted. Thus, it seems that the entanglement between two emitted modes is forbidden. However, the simulation results show the entanglement between the output modes. It is because the original transition rates of the quantum dot are modified due to the lattice plasmon coupling effect. It means that the effective transition rate affected by the lattice plasmon plays the key role. The lattice plasmon coupling to quantum dot at some locations leads to a simultaneous transition by which the entanglement between output modes is established. This unique behavior is theoretically discussed and the results shows that using lattice plasmon can change the transition rates by which the two emitted modes become entangled.

“…In recent years, the idea of using quantum phenomena in classical sensors has been used to develop the characteristics of the classical detection systems [1,2]. It is considered to be a breakthrough utilizing quantum phenomena to improve the performance of the classical sensors such as radars [1][2][3][4], enhancing the image resolution [5][6][7], improving the plasmonic photodetector responsivity [8], enhancing the plasmonic system decay rate [9], and improving the Raman signals [10]. Generally, a quantum radar is recognized as a standoff sensor by which the entangled microwave photons are employed, to enhance the detection, identification, and resolution [1,4].…”

Section: Introductionmentioning

confidence: 99%

Entanglement Sustainability in Quantum Radar

Salmanogli

Gökcen

IEEE J. Select. Topics Quantum Electron.

2020

Self Cite

Quantum radar is generally defined as a detection sensor that utilizes the microwave photons like a classical radar. At the same time, it employs quantum phenomena to improve detection, identification, and resolution capabilities. However, the entanglement is so fragile, unstable, and difficult to create and to preserve for a long time. Also, more importantly, the entangled states have a tendency to leak away as a result of noise. The points mentioned above enforces that the entangled states should be carefully studied at each step of the quantum radar detection processes as follows. Firstly, the creation of the entanglement between microwave and optical photons into the tripartite system is realized. Secondly, the entangled microwave photons are intensified. Thirdly, the intensified photons are propagated into the atmosphere (attenuation medium) and reflected from a target. Finally, the backscattered photons are intensified before the detection. At each step, the parameters related to the real mediums and target material can affect the entangled states to leak away easily. In this article, the entanglement behavior of a designed quantum radar is specifically investigated. In this study, the quantum electrodynamics theory is generally utilized to analyze the quantum radar system to define the parameters influencing the entanglement behavior. The tripartite system dynamics of equations of motions are derived using the quantum canonical conjugate method. The results of simulations indicate that the features of the tripartite system and the amplifier are designed in such a way to lead the detected photons to remain entangled with the optical modes.