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Related Experiment Video

Updated: Dec 14, 2025

Scattering And Absorption of Light in Planetary Regoliths
11:34

Scattering And Absorption of Light in Planetary Regoliths

Published on: July 1, 2019

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Manipulating the scattering pattern with non-Hermitian particle arrays.

Yun Jing Zhang, Peng Li, Vincenzo Galdi

    Optics Express
    |July 17, 2020
    PubMed
    Summary

    Active non-Hermitian particle arrays offer advanced control over scattering patterns, enabling zero forward scattering and tunable directionality. This breakthrough surpasses passive structures for novel optical and wave manipulation applications.

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    Area of Science:

    • Physics
    • Electromagnetics
    • Metamaterials

    Background:

    • Passive scattering structures have limitations in controlling wave patterns.
    • Active control offers potential for enhanced manipulation beyond static designs.

    Purpose of the Study:

    • To demonstrate advanced scattering pattern manipulation using non-Hermitian particle arrays.
    • To explore active control of scattering properties, including zero forward scattering and directionality.

    Main Methods:

    • Theoretical analysis of non-Hermitian particle arrays.
    • Modeling of active linear elements for zero forward scattering.
    • Application to loaded dipole antenna arrays with tunable impedance.
    • Stability analysis using realistic dispersion models for gain elements.

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    Assembly and Characterization of Polyelectrolyte Complex Micelles
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    Utilization of Plasmonic and Photonic Crystal Nanostructures for Enhanced Micro- and Nanoparticle Manipulation
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    Related Experiment Videos

    Last Updated: Dec 14, 2025

    Scattering And Absorption of Light in Planetary Regoliths
    11:34

    Scattering And Absorption of Light in Planetary Regoliths

    Published on: July 1, 2019

    10.8K
    Assembly and Characterization of Polyelectrolyte Complex Micelles
    08:44

    Assembly and Characterization of Polyelectrolyte Complex Micelles

    Published on: March 2, 2020

    11.3K
    Utilization of Plasmonic and Photonic Crystal Nanostructures for Enhanced Micro- and Nanoparticle Manipulation
    09:29

    Utilization of Plasmonic and Photonic Crystal Nanostructures for Enhanced Micro- and Nanoparticle Manipulation

    Published on: September 27, 2011

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    Main Results:

    • Active elements achieve zero forward scattering without reducing total scattered power.
    • The direction of zero scattering can be precisely controlled by array configuration.
    • Realistic antenna implementations show stable control over scattering patterns.
    • Broadband control is achievable by managing multiple frequencies.

    Conclusions:

    • Non-Hermitian particle arrays provide unprecedented control over scattering phenomena.
    • Active manipulation offers a powerful paradigm for wave control applications.
    • Future work can explore broadband and dynamic scattering control.