前天決定今年好好把 Modern optical engineering 讀完。
hLZfArq} 大概就每天讀個(gè)一節(jié)。有沒(méi)有人要一起讀的?
NI,>$@{ Page 7
`~=z0I 1.3 Snell's Law of Refraction
F::Ki4{jJ Relative dispersion is given by Δn/(n - 1) and, in effect, expresses the 「spread」 of the colors of light
juF=ZW%i as a fraction of the amount that light of a median wavelength is bent.
8g_kZ^<[ 這一段看不是很懂。有沒(méi)有人可以說(shuō)一下為何要這樣定義?而不直接用 Δn 就好?或是用Δn/Δλ?
6AY(/N8V Δn/(n - 1) 是不是有什麼物理涵意?
\rUKP""m )=K8mt0qob Myg;2