Exploring surface plasmon resonance ring resonator structure for high sensitivity and ultra-high-Q optical filter with FDTD method

Krishnamoorthy R.; Soubache I. D.; Farmani Ali

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Exploring surface plasmon resonance ring resonator structure for high sensitivity and ultra-high-Q optical filter with FDTD method

机译：Exploring surface plasmon resonance ring resonator structure for high sensitivity and ultra-high-Q optical filter with FDTD method

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摘要

A low loss wavelength-selective filter in terahertz frequencies is proposed and demonstrated. The proposed filter consists of a resonator placed in the air with a 15 mu m and a bus waveguide with width of 0.35 mu m produced on a wafer wirh refractive index of 3.5 and total optical path length of 400 mu m. To analysis of the structure, finite difference time domain is applied. To benchmark the performance of the proposed filter several practical parameters including geometry on transmission efficiency and quality factor are inspected. The proposed filter exhibits high quality resonance at central wavelength. The calculated transmission efficiency and quality factor are 94 and 449, respectively. We envision that the proposed structure with optimal properties can provide better performance for future sustainable filters.

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来源
《Optical and Quantum Electronics》 |2022年第2期|共13页
作者
Krishnamoorthy R.; Soubache I. D.; Farmani Ali;
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作者单位

Prathyusha Engn Coll;

Rajiv Gandhi Coll Engn & Technol;

Lorestan Univ;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类光学;
关键词
Terahertz filter; Micro ring structure; Optical filter; WAVE-GUIDE; ABSORBER; BAND;

Exploring surface plasmon resonance ring resonator structure for high sensitivity and ultra-high-Q optical filter with FDTD method

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