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单词 Sellmeier equation
释义

Sellmeier equation

中文百科

Sellmeier等式

Sellmeier等式是描述特定透明介质中折射率和波长的经验关系等式。该等式用于确定光在介质中的色散。它于1871年由Wolfgang Sellmeier首次提出。是柯西创建色散模型柯西等式的进一步发展。

英语百科

Sellmeier equation Sellmeier等式

Refractive index vs. wavelength for BK7 glass, showing measured points (blue crosses) and the Sellmeier equation (red line).
Same as the graph above, but with Cauchy's equation (blue line) for comparison. While Cauchy's equation (blue line) deviates significantly from the measured refractive indices outside of the visible region (which is shaded red), the Sellmeier equation (green dashed line) do not.
Darstellung des Brechungsindex von Borsilikatglas (BK7) gegen die Wellenlänge. Im Diagramm werden die gemessenen Werte und entsprechende parametrische Anpassungen der Cauchy- bzw. Sellmeier-Gleichung miteinander verglichen.

The Sellmeier equation is an empirical relationship between refractive index and wavelength for a particular transparent medium. The equation is used to determine the dispersion of light in the medium.

It was first proposed in 1871 by Wilhelm Sellmeier, and was a development of the work of Augustin Cauchy on Cauchy's equation for modelling dispersion.

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更新时间:2025/6/17 17:17:36