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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。 v!-/&}W)1 大概就每天讀個一節。有沒有人要一起讀的? B:yGS*.tu Page 7 ^+>laOzC`8 1.3 Snell's Law of Refraction i4Q@K,$ Relative dispersion is given by Δn/(n - 1) and, in effect, expresses the 「spread」 of the colors of light KEo,m as a fraction of the amount that light of a median wavelength is bent. E1aHKjLQ 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? y{B=-\O] Δn/(n - 1) 是不是有什麼物理涵意? [\98$BN ]KKS"0a 5K1)1E/Fu
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