Design of a chalcogenide-based 2D photonic crystalnanobeam cavity
- Department of Electrical Engineering, Islamic Azad University, Yazd, Iran
- Faculty of Engineering Shahrekord University, Shahrekord, Iran
- Department of Physics Education University of Farhangian, Isfahan, Iran
Received: 2025-02-28
Revised: 2025-03-26
Accepted: 2025-05-06
Published in Issue 2025-06-01
Copyright (c) 2025 Seyed Mohammad Zare, Majid Ebnali Heidari, Mohammad Reza Shayesteh, Aliakbar Ebnali Heidari, Maryam Nayeri (Author)

This work is licensed under a Creative Commons Attribution 4.0 International License.
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Abstract
This article presents the design and optimization of a side-coupled chalcogenide-based 1D PhC nanobeam cavity in the mid-IR spectral range. The structure configuration consists of 1D PhC nanobeam and side-coupled bending bus waveguide for efficient light coupling. Through numerical simulation and optimization, we optimized three key parameters: the number of mirror holes, the radius of the central hole of the nanobeam cavity, and the optimized coupling gap size, improving the quality factor of the fundamental mode of the cavity.
Keywords
- Photonic crystal,
- Chalcogenide,
- Wavelength,
- Quality,
- Derating factor,
- Mid-ir
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