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Electrically Tunable Metalens Based on PEDOT:PSS.

Miao Zhang¹, Dizhi Sun¹, Shiqi Zhang²

¹State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China.

|December 31, 2025

Summary

This summary is machine-generated.

This study presents an electrically tunable metalens using PEDOT:PSS and a metasurface for reconfigurable focusing. The innovative design achieves a 10:1 zoom ratio with diffraction-limited performance for integrated optics.

Keywords:

PEDOT:PSS metalens reconfigurable manipulation

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Area of Science:

Optics and Photonics
Materials Science
Electrical Engineering

Background:

Traditional lenses are bulky and lack reconfigurability.
Metalenses offer planar, lightweight focusing capabilities.
Achieving dynamic tunability in metalenses is a key challenge for integrated optics.

Purpose of the Study:

To develop an electrically tunable metalens with dynamic focal length control.
To integrate poly(3,4-ethylenedioxythiophene)-polystyrenesulfonate (PEDOT:PSS) with a metasurface for optical modulation.
To achieve high-performance, reconfigurable focusing for miniaturized optical systems.

Main Methods:

Electrochemical modulation of PEDOT:PSS film thickness and deintercalation.
Utilizing a Fresnel zone plate (FZP) design for simplified phase profiles.
Employing a modulated particle swarm optimization (PSO) algorithm for inverse design and crosstalk suppression.

Main Results:

The metalens demonstrates diffraction-limited focusing capabilities.
An impressive zoom ratio of 10:1 was achieved.
The design effectively suppresses inter-unit phase crosstalk.

Conclusions:

This work presents a viable strategy for high-performance, dynamically tunable metalenses.
The proposed electrically tunable metalens has significant potential for miniaturized imaging and microscopy.
The integration of PEDOT:PSS with metasurfaces opens new avenues in integrated photonic systems.