Impedance matching and emission properties of optical antennas in a nanophotonic circuit

Abstract

An experimentally realizable prototype nanophotonic circuit consisting of a receiving and an emitting nano antenna connected by a two-wire optical transmission line is studied using finite-difference time- and frequency-domain simulations. To optimize the coupling between nanophotonic circuit elements we apply impedance matching concepts in analogy to radio frequency technology. We show that the degree of impedance matching, and in particular the impedance of the transmitting nano antenna, can be inferred from the experimentally accessible standing wave pattern on the transmission line. We demonstrate the possibility of matching the nano antenna impedance to the transmission line characteristic impedance by variations of the antenna length and width realizable by modern microfabrication techniques. The radiation efficiency of the transmitting antenna also depends on its geometry but is independent of the degree of impedance matching. Our systems approach to nanophotonics provides the basis for realizing general nanophotonic circuits and a large variety of derived novel devices.

References in corpus (7)

• On-command enhancement of single molecule fluorescence using a gold nanoparticle as an optical nano-antenna
• A single-photon transistor using nano-scale surface plasmons
• Circuit elements at optical frequencies: nano-inductors, nano-capacitors and nano-resistors
• Input Impedance, Nanocircuit Loading, and Radiation Tuning of Optical Nanoantennas
• Photoemission Electron Microscopy as a tool for the investigation of optical near fields
• A Hertzian Plasmonic Nanodimer as an Efficient Optical Nanoantenna
• Light controlled photon tunneling

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