前天決定今年好好把 Modern optical engineering 讀完。
|\yVnk!c 大概就每天讀個(gè)一節(jié)。有沒有人要一起讀的?
RoV^sbWFt Page 7
k<1BE^[V 1.3 Snell's Law of Refraction
W'3&\} Relative dispersion is given by Δn/(n - 1) and, in effect, expresses the 「spread」 of the colors of light
>k:BG{$Kae as a fraction of the amount that light of a median wavelength is bent.
]g#ur@Y% 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?
5Ocd2T' Δn/(n - 1) 是不是有什麼物理涵意?
tY?_#rc