Three-photon absorption and subsequent excited state absorption of the generated electrons and holes have been observed.
观察到了三光子吸收及所伴随的自由载流子的激发态吸收，并测得了三光子吸收系数。
This stimulated emission is the opposite of (stimulated) absorption, where unexcited matter is stimulated into an excited state by a light wave.
这受激放射是绝对的，在那里(安慰)吸收不活泼的物质是一种兴奋安慰而由轻波形态。
The ground state level and the excited state level of the dye were determined by using the cyclic voltammetry and the optical absorption spectroscopy.
结合循环伏安曲线图及五甲川菁的光吸收阈值，初步确定五甲川菁染料电子基态和激发态能级位置。
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