Related Experiment Video
Updated: Jul 16, 2025

00:07
A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
Published on: September 5, 2019
8.5K
Photonic transistor based on a coupled-cavity system with polaritons
Optics Express
|September 15, 2023
Summary
We demonstrate a polariton-based photonic transistor controlling light properties like intensity and speed. This breakthrough utilizes exciton-photon coupling for advanced optical circuits and devices.
Area of Science:
- Optics and Photonics
- Quantum Optics
- Condensed Matter Physics
Background:
- Coupled-cavity systems with polaritons are crucial for light-matter interaction studies.
- Photonic transistors are essential components for integrated optical circuits.
Purpose of the Study:
- To propose a theoretical schema for a polariton-based photonic transistor.
- To investigate the control of probe field transmission in coupled-cavity systems.
Main Methods:
- Theoretical modeling of probe field transmission in a hybrid optomechanical system.
- Analysis of exciton-photon and single-photon coupling effects.
- Investigation of Stokes/anti-Stokes scattering, amplification/attenuation, and slow/fast light effects.
Main Results:
- Demonstrated effective control of probe light resonant point, intensity, and group velocity by a pump light.
- Observed an asymmetric Fano resonance under strong exciton-photon coupling.
- Distinguished the observed resonance from general symmetric optomechanically induced transparency.
Conclusions:
- The proposed schema enables the realization of a polariton-based photonic transistor.
- Results pave the way for designing novel photonic transistors.
- Potential applications in the implementation of polariton integrated circuits.
Related Concept Videos
Biasing of P-N Junction
590
The operation of a p-n junction diode involves various biasing conditions, including forward bias, reverse bias, and equilibrium.
In equilibrium, no external voltage is applied across the p-n junction. The depletion region is formed at the junction interface due to the diffusion of carriers, which leaves behind charged dopants, acceptors on the p-side, and donors on the n-side. These immobile charges create an electric field that prevents further diffusion of carriers. The related energy band...
In equilibrium, no external voltage is applied across the p-n junction. The depletion region is formed at the junction interface due to the diffusion of carriers, which leaves behind charged dopants, acceptors on the p-side, and donors on the n-side. These immobile charges create an electric field that prevents further diffusion of carriers. The related energy band...
590
Potential Due to a Polarized Object
434
A neutral atom consists of a positively charged nucleus surrounded by a negatively charged electron cloud. When placed in an external electric field, the external electric force pulls the electrons and nucleus apart, opposite to the intrinsic attraction between the nucleus and the electrons. The opposing forces balance each other with a slight shift between the center of masses of the nucleus and the electron cloud, resulting in a polarized atom. On the other hand, a few molecules, like water,...
434
Dielectric Polarization in a Capacitor
4.8K
The presence of a dielectric medium in a capacitor not only changes the voltage and capacitance but also affects the electric field. In general, dielectrics can be of two types: polar and nonpolar. In a polar dielectric, the positive and negative charges in the molecules are separated by a distance and hence have a permanent dipole moment. In contrast, no such charge separation exists in a nonpolar dielectric, however the nonpolar molecules get polarized in the presence of an external electric...
4.8K

