ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Tunable topological edge state in mirrored photonic crystal interface | JoVE Visualize

Home
Research Domains
Engineering

Tunable topological edge state in mirrored photonic crystal interface

Jiahui Ren, Yikai Xu, Lei Zhou

Optics Express|June 14, 2025

Related Experiment Videos

View abstract on PubMed

Summary

Researchers created a mirrored photonic crystal interface (MPCI) with tunable topological edge states. Adjusting geometric parameters allows these states to close and reopen, enabling robust transport in photonic circuits.

Area of Science:

Photonics
Condensed Matter Physics
Materials Science

Background:

Photonic crystals offer unique light manipulation properties.
Topological phases in photonic systems enable robust edge states.
Expanded honeycomb photonic crystals (EHPCs) exhibit nontrivial band topology.

Purpose of the Study:

To develop a novel mirrored photonic crystal interface (MPCI).
To investigate the tunability of topological edge states in EHPCs.
To explore potential applications in photonic integrated circuits.

Main Methods:

Applying a mirror operator to EHPCs to create MPCIs.
Analyzing interface states with spin-momentum locking.
Tuning geometric parameters of EHPCs to induce topological phase transitions.

Main Results:

MPCI supports a pair of interface states with spin-momentum locking.
Adjusting geometric parameters causes interface states to close and reopen, signaling topological phase transitions.
MPCI acts as an interface between topologically nontrivial (C6-symmetric) and trivial (C3-symmetric) phases.

Conclusions:

Topological edge states in photonic crystals are tunable by adjusting geometry.
MPCI demonstrates a method for controlling topological phase transitions.
These findings suggest potential for robust transport devices in photonic integrated circuits.

Related Experiment Videos

Related Concept Videos

Materials Engineering

Elemental Semiconductors

Tunable Topological Edge State In Mirrored Photonic Crystal Interface