基于溶液浇铸胶体量子点的1.55微米兆赫兹频率大面积光调制器。

Megahertz-frequency large-area optical modulators at 1.55 microm based on solution-cast colloidal quantum dots.

作者信息

Hoogland Sjoerd, Sukhovatkin Vlad, Shukla Harnik, Clifford Jason, Levina Larissa, Sargent Edward H

机构信息

Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario M5S 3G4, Canada.

出版信息

Opt Express. 2008 Apr 28;16(9):6683-91. doi: 10.1364/oe.16.006683.

DOI:10.1364/oe.16.006683

PMID:18545372

Abstract

We report the realization of large-area, communications-wavelength electro-optic modulators made via simple solution-casting onto an arbitrary substrate. The devices employ colloidal quantum dots synthesized in, and processed from, the solution phase. Devices exhibit greater than 30% modulation depth at the 1.55 microm eye-safe wavelengths of interest in free-space optical communications. The devices retain considerable modulation depth beyond 1 MHz.

摘要

我们报告了通过简单的溶液浇铸法在任意衬底上制备大面积通信波长电光调制器的实现情况。这些器件采用在溶液相中合成并从溶液相中加工得到的胶体量子点。在自由空间光通信中感兴趣的1.55微米人眼安全波长处，器件表现出大于30%的调制深度。这些器件在超过1 MHz的频率下仍保持相当大的调制深度。