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Generating diffraction grating in a Laguerre–Gaussian rotational-cavity magnonics system

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  • Wang, Yanchao
  • Munir, Akhtar
  • Xie, Yuxuan
  • Wang, Chunfang

Abstract

We propose a scheme to generate a Fraunhofer diffraction grating in a Laguerre–Gaussian (L–G) rotational-cavity magnonics system, enabling controllable and reconfigurable optical functionalities. By introducing a tunable strong standing wave (SW) control field, a spatially dependent transmission profile is obtained, evidencing the formation of an effective grating. The diffraction intensities are analyzed by examining the interplay among cavity magnons, orbital angular momentum (OAM), standing-wave strength, and the spatial-period parameter. This modulation scheme allows for the generation of diffraction gratings with adjustable properties, thereby facilitating the implementation of reconfigurable optical elements and hybrid devices that couple optical, magnonic, and mechanical modes. The results open new avenues for quantum information transfer and the realization of nonreciprocal photonic functionalities in hybrid quantum systems.

Suggested Citation

  • Wang, Yanchao & Munir, Akhtar & Xie, Yuxuan & Wang, Chunfang, 2026. "Generating diffraction grating in a Laguerre–Gaussian rotational-cavity magnonics system," Chaos, Solitons & Fractals, Elsevier, vol. 203(C).
    • Handle: RePEc:eee:chsofr:v:203:y:2026:i:c:s0960077925016388
    DOI: 10.1016/j.chaos.2025.117625
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    References listed on IDEAS

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    1. Munir, Akhtar & Abbas, Muqaddar & Wang, Chunfang, 2025. "Nonreciprocal cavity magnonics system for amplification of photonic spin Hall effect," Chaos, Solitons & Fractals, Elsevier, vol. 192(C).
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