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现代光电子学(2)

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国家自然科学基金委员会<br />

数理学部实验物理讲习班<br />

有多个共振频率的情况<br />

f j个电子:ω j、γ j<br />

Z = ∑ f<br />

每个分子的电子 j<br />

j<br />

εω ( ) = 1+<br />

2<br />

Ne '<br />

f<br />

∑ mε ω ω iγω<br />

0<br />

j (<br />

2<br />

j −<br />

j<br />

2<br />

) − j<br />

晶体的透明区域,折射率的半经验Sellmeier公式<br />

n<br />

2<br />

= 1+<br />

∑<br />

A<br />

2<br />

2 2<br />

j j<br />

j<br />

λ<br />

λ − λ

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