Cross-sectional optimization of whispering-gallery mode sensor with high electric field intensity in the detection domain

Akihiro Takezawa, Masanobu Haraguchi, Toshihiro Okamoto, Mitsuru Kitamura

研究成果査読

4 被引用数 (Scopus)

抄録

Optimal cross-sectional shapes for whispering-gallery mode sensors with prescribed emission wavelengths and resonance modes are generated through topology optimization based on the finite element method. The sensor is assumed to detect the state of the domain surrounded by the sensor. We identified the integral of the square of the electric field intensity over the detection domain and the quality factor (Q factor), which should be maximized, as key values for the sensor sensitivity, representing the detection limit for the relative permittivity change of the test object. Based on this, the integral of the square of the electric field intensity over the detection domain and the Q factor are studied as the optimization targets. In our numerical study, their optimal configuration characteristics are identified and analyzed. The resulting device has a small radius, a small detection domain and a concave shape with a center located next to the detection domain. We also succeeded in performing simultaneous optimization of the integral of the square of the electric field intensity over the detection domain and the Q factor.

本文言語English
論文番号6810133
ページ(範囲)381-390
ページ数10
ジャーナルIEEE Journal on Selected Topics in Quantum Electronics
20
6
DOI
出版ステータスPublished - 2014
外部発表はい

ASJC Scopus subject areas

  • 原子分子物理学および光学
  • 電子工学および電気工学

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