Selenide glasses have low material dispersion, high-energybandgap, long-wavelength multiphonon edge and it's the perfect candidate for mid-far-infrared fibers.
硒化物玻璃具有低的材料色散、高的禁带宽度、长的多声子吸收边,是制备中远红外光纤的优秀材料。
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The interaction between the energized electron and the hole it leaves behind is called an exciton, and the difference in energy levels between the hole and the electron is known as the bandgap.