[請益] 物理作業
證明在室溫下,當能階差對應到波長為1.55 μm 的紅外光時,
高低兩能階上的電子數比Ni/Nf與e的-ΔE/KT成正比並<<1
老師出的題目要我們去討論,但是不知道從哪裡入手
希望各位能給點建議
感恩
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