Enhancing weak optical signals using a plasmonic Yagi-Uda nanoantenna Array

Date

2014

Authors

Mironov, Evgeny
Khaleque, Abdul
Liu, Liming
Maksymov, Ivan
Hattori, Haroldo

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Volume Title

Publisher

Institute of Electrical and Electronics Engineers (IEEE Inc)

Abstract

Nanoantennas have been used in a wide range of applications in sensing, spectroscopy, and imaging-in general, the antennas can enhance physical phenomena such as the local electric field or concentrate light in a certain direction. We have fabricated an array of 80 plasmonic Yagi-Uda nanoantennas on the cladding of an optical fiber and, by doing this, we show that the signal reaching the fast detector can be increased by a factor of 5 dB. The experiment demonstrates that plasmonic directive nanoantennas can indeed collect and concentrate electromagnetic radiation along a certain direction and eventually could be used to enhance weak signals.

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Citation

Source

IEEE Photonics Technology Letters

Type

Journal article

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Restricted until

2037-12-31