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<p>The lossy mode resonance&#xa0;(LMR) effect is generated by coupling between an evanescent wave from an optical waveguide and a lossy mode guided in the thin film. This effect presents a response to the variations in the refractive index of the surrounding medium similar to that obtained through the surface plasmon resonance effect. The sensors based on LMR effect have large number of applications on detection of physical, chemical and biological parameters. Faced with such a large number of applications and their relevance, especially in the health area, it is necessary to use computational platforms to assist in the analysis and the design of these sensors based on LMR effect. Thereby, these simulation tools are used to design the sensor structure and to reduce operating costs, since that the instruments and materials used are expensive and require care in instrumental handling. In this paper, we propose an open-source simulator to assist in the study, analysis and design of optical sensors based on LMR effect&#xa0;(Sim-LMR). Sim-LMR has a friendly graphical interface to simulate optical sensors considering structures based on prism for optical coupling in angular interrogation mode and wavelength interrogation mode. The results obtained by Sim-LMR were validated based on scenarios available in the literature, considering the characteristics of the reflectance curve and comparing its results with data obtained from the literature and a commercial software.</p>

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An open source simulator for prism sensors based on lossy mode resonance effect

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年4月28日

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  • Adeilson de Sousa Leal,
  • Isa Cristina Gonçalves de Paiva,
  • Eloise dos Passos Rodrigues,
  • Helder Alves Pereira

摘要

The lossy mode resonance (LMR) effect is generated by coupling between an evanescent wave from an optical waveguide and a lossy mode guided in the thin film. This effect presents a response to the variations in the refractive index of the surrounding medium similar to that obtained through the surface plasmon resonance effect. The sensors based on LMR effect have large number of applications on detection of physical, chemical and biological parameters. Faced with such a large number of applications and their relevance, especially in the health area, it is necessary to use computational platforms to assist in the analysis and the design of these sensors based on LMR effect. Thereby, these simulation tools are used to design the sensor structure and to reduce operating costs, since that the instruments and materials used are expensive and require care in instrumental handling. In this paper, we propose an open-source simulator to assist in the study, analysis and design of optical sensors based on LMR effect (Sim-LMR). Sim-LMR has a friendly graphical interface to simulate optical sensors considering structures based on prism for optical coupling in angular interrogation mode and wavelength interrogation mode. The results obtained by Sim-LMR were validated based on scenarios available in the literature, considering the characteristics of the reflectance curve and comparing its results with data obtained from the literature and a commercial software.