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Related Experiment Video

Updated: Jan 19, 2026

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
12:18

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Tunable two-dimensional optical filter based on guided-mode resonance.

Atefe Taheri, Mehrdad Shokooh-Saremi

    Journal of the Optical Society of America. A, Optics, Image Science, and Vision
    |September 11, 2019
    PubMed
    Summary
    This summary is machine-generated.

    This study introduces a tunable optical filter using guided-mode resonance (GMR). The device achieves tunable resonance by altering refractive index and thickness, demonstrating potential for optical filters and display pixels.

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    Area of Science:

    • Photonics and optical engineering
    • Nanotechnology and metamaterials

    Background:

    • Guided-mode resonance (GMR) structures offer unique optical properties.
    • Tunable optical filters are crucial for various photonic applications, including displays and sensing.

    Purpose of the Study:

    • To propose and simulate a tunable, two-dimensional periodic structure based on GMR.
    • To explore the use of micro-electro-mechanical system (MEMS) mechanisms for tuning resonance characteristics.

    Main Methods:

    • Design of a two-dimensional periodic GMR structure.
    • Simulations to analyze resonance tuning via refractive index and thickness perturbations.
    • Investigating tunability under varying angles of incidence.

    Main Results:

    • Achieved resonance wavelength tuning of ~48 nm (522-570 nm) with 166 nm horizontal movement.
    • Demonstrated ~17 nm (526-543 nm) tuning with 300 nm vertical movement.
    • The device maintained tunability within ±5° angle of incidence deviations.

    Conclusions:

    • The proposed GMR device provides a viable method for creating tunable optical filters and display pixels.
    • The MEMS-actuated tuning mechanism offers precise control over optical response.
    • The structure exhibits robustness to angular variations, enhancing its practical applicability.