Simulation of terahertz whispering gallery mode resonator

Yiran Ju; ZhenWei Zhang

doi:10.1117/12.3036257

8 November 2024 Simulation of terahertz whispering gallery mode resonator

Yiran Ju, ZhenWei Zhang

Author Affiliations +

Proceedings Volume 13247, Infrared, Millimeter-Wave, and Terahertz Technologies XI; 1324703 (2024) https://doi.org/10.1117/12.3036257
Event: SPIE/COS Photonics Asia, 2024, Nantong, Jiangsu, China

Abstract

In this paper, we used FDTD optical simulation software to simulate terahertz whispering gallery mode resonant cavities with cylindrical, circular ring, sphere, and hollow sphere structures. We used fiber coupling method and set the diameter of the fiber to 200um. Simulate resonant cavities with a radius of 5mm to 10mm in the range of 0.325-0.5THz. The resonant cavity uses quartz material and uses 2D simulation to save simulation time. We observed the distribution of mode spectral lines and electric field intensity, and characterized five indicator parameters of the terahertz whispering gallery mode resonant cavity after resonance phenomenon: resonance wavelength, free spectrum range, full width at half maximum, quality factor, and mode volume. The results indicate that terahertz resonant cavities exhibit good performance in specific frequency bands.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Yiran Ju and ZhenWei Zhang "Simulation of terahertz whispering gallery mode resonator", Proc. SPIE 13247, Infrared, Millimeter-Wave, and Terahertz Technologies XI, 1324703 (8 November 2024); https://doi.org/10.1117/12.3036257

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