scholarly journals Optomechanically Induced Transparency

Science ◽  
2010 ◽  
Vol 330 (6010) ◽  
pp. 1520-1523 ◽  
Author(s):  
Stefan Weis ◽  
Rémi Rivière ◽  
Samuel Deléglise ◽  
Emanuel Gavartin ◽  
Olivier Arcizet ◽  
...  
Keyword(s):  
Quantum Interference ◽  
Electromagnetically Induced Transparency ◽  
Destructive Interference ◽  
Probe Field ◽  
Optomechanical System ◽  
Light Pulses ◽  
Quantum Interference Effect ◽  
On Chip ◽  
Induced Transparency ◽  
Optomechanically Induced Transparency

Electromagnetically induced transparency is a quantum interference effect observed in atoms and molecules, in which the optical response of an atomic medium is controlled by an electromagnetic field. We demonstrated a form of induced transparency enabled by radiation-pressure coupling of an optical and a mechanical mode. A control optical beam tuned to a sideband transition of a micro-optomechanical system leads to destructive interference for the excitation of an intracavity probe field, inducing a tunable transparency window for the probe beam. Optomechanically induced transparency may be used for slowing and on-chip storage of light pulses via microfabricated optomechanical arrays.

scholarly journals Optomechanically induced transparency and possible application in a quadratic-coupling optomechanical system with an induced electric field

2021 ◽  
Author(s):  
Chunchao Yu ◽  
Wenxing Yang ◽  
Fang Chen ◽  
Lihui Sun ◽  
Huafeng Zhang
Keyword(s):  
Electric Field ◽  
Group Delay ◽  
Transmission Rate ◽  
Optical Devices ◽  
Probe Field ◽  
Optical Buffer ◽  
Optomechanical System ◽  
Induced Transparency ◽  
Quadratic Coupling ◽  
Optomechanically Induced Transparency

Abstract Tunable optomechanically induced transparency (OMIT) with an induced electric field (IEF) in a quadratic-coupling optomechanical system is theoretically investigated. The system transmission rate under different controlling parameters has been discussed. It is revealed that both phase and group delay of the probe field can be adjusted by the IEF and pump field. Such a system may be used in tunable optical buffer, IEF detector, modulator or other optical devices.

scholarly journals Variable Optical Buffer Using EIT in Three Level System Based on Semiconductor Conical Quantum Dots

2020 ◽  
Vol 12 (01) ◽  
pp. 50-60
Author(s):  
Nooralhuda S.Yaqoob ◽  
◽  
Sabah M.M. Ameen ◽  
Keyword(s):  
Quantum Interference ◽  
Electromagnetically Induced Transparency ◽  
Pump Intensity ◽  
Laser Beams ◽  
Level System ◽  
Optical Buffer ◽  
Quantum Interference Effect ◽  
Signal Light ◽  
Signal Laser ◽  
Induced Transparency

A variable semiconductor optical buffer based on the electromagnetically induced transparency (EIT) in a three level conical quantum dot system (CQD) is theoretically investigated. The system is interacting with two (control and signal) laser beams. Signal light with subluminal velocity is possible in such system through the quantum interference effect induced by the control pump field. We investigate the refractive index and absorption spectra of the QD waveguide at different pump levels, which exhibit an optimal pump power for maximum slow-down factor (SDF). The group velocity SDF is theoretically analyzed as a function of the pump intensity at different broadened linewidths. The present study is based on the assumption that the medium is homogeneous. In this paper, a SDF as a function of CQD radius was studied. The simulation results indicate that the SDF increases with decreasing CQD radius.

scholarly journals The Optomechanical Response of a Cubic Anharmonic Oscillator

2020 ◽  
Vol 10 (16) ◽  
pp. 5719
Author(s):  
Sumei Huang ◽  
Hongmiao Hao ◽  
Aixi Chen
Keyword(s):  
Precision Measurement ◽  
Anharmonic Oscillator ◽  
Electromagnetically Induced Transparency ◽  
Cavity Resonance ◽  
Mechanical Oscillator ◽  
Probe Field ◽  
Optomechanical System ◽  
Asymmetric Shape ◽  
Sideband Generation ◽  
Induced Transparency

The nonlinearity of a mechanical oscillator may lead to the generation of the macroscopic quantum states, which are useful for precision measurement. Measuring the nonlinearity of a mechanical oscillator becomes important in order to effectively assess its performance. In this paper, we study the electromagnetically induced transparency (EIT) in an optomechanical system with a cubic nonlinear movable mirror. In the presence of the nonlinearity of the movable mirror, we show that the intensity of the output probe field exhibits an asymmetric shape with the transparency peak shifted to a frequency lower than the cavity resonance frequency. This shift can be used to measure the nonlinearity strength of the movable mirror. We also show that the mechanical nonlinearity gives rise to the enhancement of the intensity of the second-order upper sideband generation.

scholarly journals Electromagnetically induced transparency in optical microcavities

Nanophotonics ◽  
2017 ◽  
Vol 6 (5) ◽  
pp. 789-811 ◽  
Author(s):  
Yong-Chun Liu ◽  
Bei-Bei Li ◽  
Yun-Feng Xiao
Keyword(s):  
Quantum Interference ◽  
Slow Light ◽  
Electromagnetically Induced Transparency ◽  
Field Enhancement ◽  
Quality Factors ◽  
Optical Microcavities ◽  
Quantum Interference Effect ◽  
All Optical ◽  
Optical Modes ◽  
Induced Transparency

AbstractElectromagnetically induced transparency (EIT) is a quantum interference effect arising from different transition pathways of optical fields. Within the transparency window, both absorption and dispersion properties strongly change, which results in extensive applications such as slow light and optical storage. Due to the ultrahigh quality factors, massive production on a chip and convenient all-optical control, optical microcavities provide an ideal platform for realizing EIT. Here we review the principle and recent development of EIT in optical microcavities. We focus on the following three situations. First, for a coupled-cavity system, all-optical EIT appears when the optical modes in different cavities couple to each other. Second, in a single microcavity, all-optical EIT is created when interference happens between two optical modes. Moreover, the mechanical oscillation of the microcavity leads to optomechanically induced transparency. Then the applications of EIT effect in microcavity systems are discussed, including light delay and storage, sensing, and field enhancement. A summary is then given in the final part of the paper.

Observation of electromagnetically induced transparency in a ring cavity

Open Physics ◽  
2012 ◽  
Vol 10 (5) ◽  
Author(s):  
E. Wu ◽  
Yong-Hong Ma ◽  
Xiang-Gang Han
Keyword(s):  
Electromagnetically Induced Transparency ◽  
Ring Cavity ◽  
Input Power ◽  
Current Paper ◽  
Probe Field ◽  
Optomechanical System ◽  
Output Field ◽  
Induced Transparency

AbstractA scheme to observe Electromagnetically induced transparency (EIT) in an optomechanical system is proposed in the current paper. We treat a narrowband squeezed field as the weak probe field. We find that EIT dips exist in the output field. Moreover, the dependence of the EIT dips on the effective cavity detuning Δ and the input power ζ are explored. We show that the width of the EIT dips can be controlled by the parameters ξ and the detuning Δ.

scholarly journals Optomechanically induced transparency, amplification, and Fano resonance in a multimode optomechanical system with quadratic coupling

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Yongchao Zhang ◽  
Zhipeng Zhu ◽  
Yuanshun Cui ◽  
Hualing Yu ◽  
Cheng Jiang ◽  
...  
Keyword(s):  
Fano Resonance ◽  
Light Propagation ◽  
Control Field ◽  
Probe Field ◽  
Optomechanical System ◽  
Nondegenerate Case ◽  
Induced Transparency ◽  
Strong Control ◽  
Quadratic Coupling ◽  
Optomechanically Induced Transparency

AbstractWe explore the optical response of a multimode optomechanical system with quadratic coupling to a weak probe field, where the cavity is driven by a strong control field and the two movable membranes are, respectively, excited by weak coherent mechanical driving fields. We study the two cases that the two movable membranes are degenerate and nondegenerate. For the degenerate case, it is shown that only one transparency window occurs and the transition between optomechanically induced transparency and Fano resonance can be realized by tuning the cavity-control field detuning. For the nondegenerate case, two transparency windows are observed and the absorption spectrum can switch between a single Fano resonance and double Fano resonances. Furthermore, we show that the output probe field can be greatly amplified or completely suppressed due to the complex interference effect by tuning the amplitude and phase of the mechanical driving fields. Our results can be extended to the optomechanical system with multiple membranes, which enables us to control the light propagation more flexibly.

scholarly journals Wave discrimination at C-band frequencies in microstrip structures inspired by electromagnetically induced transparency

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Abdul Jabbar ◽  
Rashad Ramzan ◽  
Omar Siddiqui ◽  
Muhammad Amin ◽  
Farooq A. Tahir
Keyword(s):  
Quantum Interference ◽  
Electromagnetically Induced Transparency ◽  
Open Circuit ◽  
Practical Implementation ◽  
Interference Phenomenon ◽  
Transmission Zeros ◽  
Group Refractive Index ◽  
Microwave Regime ◽  
On Chip ◽  
Induced Transparency

AbstractWe present the design and practical implementation of a microstrip diplexer based on the wave discrimination property associated with the electromagnetically induced transparency (EIT)-like effect. The EIT is a quantum interference phenomenon which happens between two atomic transition pathways and allows wave propagation within a medium’s absorption spectrum. Here, we exploit an analogous interference mechanism in a three-port microstrip structure to demonstrate a diplexer based on the EIT-like effect in the microwave regime. Since the transparency is accompanied by a high transmission and strong dispersion characteristics, compact frequency discriminating structures that can resolve nearby frequencies with high isolation can be devised. Our proposed C-band diplexer consists of pairs of unequal open-circuit stubs, which resonate at detuned frequencies and interfere to form the EIT-like passbands for diplexer action. The design is highly compact and scalable in frequency for both PCB and on-chip applications. A prototype of diplexer is fabricated for the center frequencies of lower and upper passbands at 4.6 GHz and 5.5 GHz respectively. The transmission zeros are designed at the complementary channels so that the two passbands are highly isolated presenting the isolation of about 40 dB. The measured insertion loss of lower and upper passband is 0.59 dB and 0.61 dB respectively. Measured input return loss is better than − 15 dB, while the output return losses are well below − 12 dB. Moreover, a decent value of about 200 is achieved for the group refractive index around the EIT-like passbands, which reveals the slow wave characteristics of the proposed EIT-based diplexer.

Electromagnetically induced transparency in a three-mode optomechanical system

2014 ◽  
Vol 23 (11) ◽  
pp. 114201 ◽  
Author(s):  
Xiao-Bo Yan ◽  
Kai-Hui Gu ◽  
Chang-Bao Fu ◽  
Cui-Li Cui ◽  
Jin-Hui Wu
Keyword(s):  
Electromagnetically Induced Transparency ◽  
Optomechanical System ◽  
Induced Transparency
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