Abstract This work proposes a method to scientifically quantify the quality of normally distributed visible spectra from the viewpoint of energy concentration: high transmittance, narrow spectral width, and small deviation from the target wavelength in the target region. In the proposed method, the spectral width of the spectrum is compared with that of a reference spectrum before its deviation from the target wavelength is examined. After extracting the maximum transmittance, a performance index of the spectrum is obtained in a percentile value. The effectiveness of the proposed method was analytically proven by surface plasmon resonance-generated spectra with five design features and five variations in each feature. The results indicated that the proposed method not only substantially reflected the predictions made by intuitive visual inspections, but also avoided misleading and ambiguous results evaluated by existing full-width-at-half-maximum (FWHM) method, figure-of-merit (FOM) method, and coordinates on the chromaticity diagram. In addition to the numerical analysis, the experimentally obtained spectra of phosphors in white light emitting diodes were also evaluated. The results proved that the proposed method can successfully highlight the scaled performance difference among the spectra, which is not supported by existing FWHM and FOM methods by simultaneously considering the aforementioned three characteristics of a spectrum.

中文翻译：

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基于能量集中的可见光区正态分布光谱综合评价方法

摘要 本文提出了一种从能量集中的角度科学量化正态分布可见光谱质量的方法：高透光率、窄谱宽、目标区域与目标波长的偏差小。在所提出的方法中，在检查光谱与目标波长的偏差之前，将光谱的光谱宽度与参考光谱的光谱宽度进行比较。提取最大透光率后，以百分位值得到光谱的性能指标。通过具有五个设计特征和每个特征的五个变化的表面等离子体共振产生的光谱分析证明了所提出方法的有效性。结果表明，所提出的方法不仅充分反映了直观视觉检查所做的预测，而且避免了现有的半高全宽（FWHM）方法，品质因数（FOM）评估的误导和模糊结果) 方法，以及色度图上的坐标。除了数值分析外，还评估了实验获得的白光发光二极管中磷光体的光谱。结果证明，通过同时考虑光谱的上述三个特征，所提出的方法可以成功地突出光谱之间的缩放性能差异，这是现有 FWHM 和 FOM 方法所不支持的。品质因数 (FOM) 方法，以及色度图上的坐标。除了数值分析外，还评估了实验获得的白光发光二极管中磷光体的光谱。结果证明，通过同时考虑光谱的上述三个特征，所提出的方法可以成功地突出光谱之间的缩放性能差异，这是现有 FWHM 和 FOM 方法所不支持的。品质因数 (FOM) 方法，以及色度图上的坐标。除了数值分析外，还评估了实验获得的白光发光二极管中磷光体的光谱。结果证明，通过同时考虑光谱的上述三个特征，所提出的方法可以成功地突出光谱之间的缩放性能差异，这是现有 FWHM 和 FOM 方法所不支持的。