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2012-02-14 15:31 |
relative dispersion
前天決定今年好好把 Modern optical engineering 讀完。 t1LIZ5JY 大概就每天讀個一節。有沒有人要一起讀的? !yUn|v>&p Page 7 eA4dDKX+ 1.3 Snell's Law of Refraction 6CQ.>M:R Relative dispersion is given by Δn/(n - 1) and, in effect, expresses the 「spread」 of the colors of light f82$_1s^ as a fraction of the amount that light of a median wavelength is bent. #9R[%R7Nz 這一段看不是很懂。有沒有人可以說一下為何要這樣定義?而不直接用 Δn 就好?或是用Δn/Δλ? ,s=jtK Δn/(n - 1) 是不是有什麼物理涵意? It5U=PU KOQiX?' #F>7@N:5
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