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A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

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Lateral-Type Spin-Photonics Devices: Development and Applications.

Nozomi Nishizawa¹, Hiro Munekata¹

¹Laboratory for Future Interdisciplinary Research and Technology, Tokyo Institute of Technology, Yokohama 226-8503, Japan.

|June 2, 2021

Summary

Lateral-type spin-photonic devices offer practical solutions for circularly polarized light (CPL) applications. These devices enable compact, room-temperature CPL emission and detection, with broad applications including biological diagnosis.

Keywords:

cancer detection circularly polarized light spin injection spin-LED spin-photodiode spin-photonic devices spintronics

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Area of Science:

Optoelectronics
Photonics
Spintronics

Background:

Spin-photonic devices, including spin-polarized light-emitting diodes and photodiodes, are crucial for circularly polarized light (CPL) applications.
Lateral-type devices offer unique advantages for CPL exchange through their side facets.

Purpose of the Study:

To review the functions of lateral-type spin-photonic devices in practical CPL applications.
To explore proposed CPL applications across various fields, including biological diagnosis.
To discuss the current status and future prospects of spin-photonic devices.

Main Methods:

Focus on lateral-type spin-photonic devices for CPL exchange.
Evaluation of device characteristics: compactness, integrability, monolithic nature, room temperature operation, high circular polarization emission, polarization controllability, and CPL detection.
Exploration of CPL applications, including biological diagnosis via CPL scattering.

Main Results:

Lateral-type spin-photonic devices exhibit key functionalities for CPL applications.
Demonstrated advantages include compactness, monolithic design, room-temperature operation, high polarization emission, controllability, and detection capabilities.
Potential applications span diverse fields, notably biological diagnosis using CPL scattering.

Conclusions:

Spin-photonic devices are vital for advancing CPL technologies.
Lateral-type devices present a promising platform for integrated and efficient CPL applications.
Future research should focus on further development and expanded applications in areas like biosensing.