美国Berkeley加州大学的乔瑞雨 (R.Y.Chiao)研究组做的那个“单光子赛跑实验”用的多层固体介质是什么材料?
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They are optical realizations of the Kronig-Penney model of solid state physics,and thus analogous to crystalline solids possessing band gaps,as well as to superlattices.Our dielectric mirror has an (HL) H structure,where H represents titanium oxide (with an index of 2.22) and L represents fused silica (with an index of 1.41).Its total thickness d is 1 1 pm,implying a traversal time of d/c =3.6 fs if a particle were to travel at c.Its band gap extends approximately from 600 to 800 nm,and the transmission reaches a minimum of 1% at 692 nm.
自己看吧.不知道你说的是不是这个实验.
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