Optical devices comprising polymer-dispersed crystalline materials
    2.
    发明授权
    Optical devices comprising polymer-dispersed crystalline materials 失效
    包含聚合物分散结晶材料的光学器件

    公开(公告)号:US6005707A

    公开(公告)日:1999-12-21

    申请号:US976002

    申请日:1997-11-21

    摘要: Optical modulators and switches for use in telecommunications systems are disclosed having solid-state crystalline optical material comprised of III-V, II-VI, and IV semiconductor nanocrystals embedded in a polymer matrix. In a preferred embodiment, the crystalline material comprises CdSe crystals sized at less than 5.8 nm in diameter and more preferably at less than about 4 nm in diameter and advantageously embedded in poly(vinyl pyridine). The crystalline material sandwiched between two electrodes defines an optical modulator. In one preferred embodiment, the crystalline material with ten-percent crystal embedded in a polymer will exhibit with an applied voltage of 100V, a differential absorbance spectra (.DELTA.A) of about 50 cm.sup.-1 at wavelengths of about 610 nm and a differential refractive index (.DELTA.n) of about 10.sup.-4 at wavelengths of about 625 nm.

    摘要翻译: 公开了用于电信系统的光调制器和开关,其具有由嵌入聚合物基质中的III-V,II-VI和IV半导体纳米晶体构成的固态晶体光学材料。 在一个优选的实施方案中,结晶材料包含直径小于5.8nm,更优选直径小于约4nm的CdSe晶体,并且有利地嵌入聚(乙烯基吡啶)中。 夹在两个电极之间的晶体材料限定了光学调制器。 在一个优选实施方案中,具有10%晶体嵌入聚合物中的结晶材料将以100V的施加电压显示出约610cm波长的差分吸收光谱(DELTA A)约为50cm -1,差示折射率 指数(DELTA n)在约625nm的波长处约为10-4。