Direct Conversion of Free Space Millimeter Waves to Optical Domain by Plasmonic Modulator Antenna
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- 作者：Yannick Salamin ; Wolfgang Heni ; Christian Haffner ; Yuriy Fedoryshyn ; Claudia Hoessbacher ; Romain Bonjour ; Marco Zahner ; David Hillerkuss ; Pascal Leuchtmann ; Delwin L. Elder ; Larry R. Dalton ; Christian Hafner ; Juerg Leuthold
- 刊名：Nano Letters
- 出版年：2015
- 出版时间：December 9, 2015
- 年：2015
- 卷：15
- 期：12
- 页码：8342-8346
- 全文大小：325K
- ISSN：1530-6992
文摘
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鈥?00 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.