Direct Conversion of Free Space Millimeter Waves to Optical Domain by Plasmonic Modulator Antenna.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 26570995.
- Also identified by DOI 10.1021/acs.nanolett.5b04025 and PMC identifier 4710456.
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Abstract
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.