Salamin Yannick, Heni Wolfgang, Haffner Christian, Fedoryshyn Yuriy, Hoessbacher Claudia, Bonjour Romain, Zahner Marco, Hillerkuss David, Leuchtmann Pascal, Elder Delwin L, Dalton Larry R, Hafner Christian, Leuthold Juerg
ETH Zurich , Institute of Electromagnetic Fields (IEF), 8092 Zurich, Switzerland.
University of Washington , Department of Chemistry, Seattle, Washington 98195-1700, United States.
Nano Lett. 2015 Dec 9;15(12):8342-6. doi: 10.1021/acs.nanolett.5b04025. Epub 2015 Nov 19.
A scheme for the direct conversion of millimeter and THz waves to optical signals is introduced. The compact device consists of a plasmonic phase modulator that is seamlessly cointegrated with an antenna. Neither high-speed electronics nor electronic amplification is required to drive the modulator. A built-in enhancement of the electric field by a factor of 35,000 enables the direct conversion of millimeter-wave signals to the optical domain. This high enhancement is obtained via a resonant antenna that is directly coupled to an optical field by means of a plasmonic modulator. The suggested concept provides a simple and cost-efficient alternative solution to conventional schemes where millimeter-wave signals are first converted to the electrical domain before being up-converted to the optical domain.
介绍了一种将毫米波和太赫兹波直接转换为光信号的方案。该紧凑型器件由一个与天线无缝共集成的等离子体相位调制器组成。驱动调制器无需高速电子器件或电子放大。电场的内置增强因子为35000，可实现毫米波信号到光域的直接转换。这种高增强是通过一个通过等离子体调制器直接耦合到光场的谐振天线获得的。所提出的概念为传统方案提供了一种简单且经济高效的替代解决方案，在传统方案中，毫米波信号首先转换到电域，然后再上转换到光域。
