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Preparation of Silicon Nanowire Field-effect Transistor for Chemical and Biosensing Applications

Preparation of Silicon Nanowire Field-effect Transistor for Chemical and Biosensing Applications

Published on: April 21, 2016

Silicon nanowire based radio-frequency spectrum analyzer.

Bill Corcoran¹, Trung D Vo, Mark D Pelusi

¹Centre for Ultrahigh-bandwidth Devices for Optical Systems (CUDOS), Institute for Photonics and Optical Sciences (IPOS), School of Physics, The University of Sydney, NSW, Australia. billc@physics.usyd.edu.au

|October 14, 2010

Summary

This study presents a silicon nanowire radio-frequency spectrum analyzer. The device accurately analyzes high-speed data streams, showing potential for optical communication optimization without performance loss from free carrier effects.

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Area of Science:

Photonics
Optoelectronics
Silicon photonics

Background:

High-speed optical communication systems require advanced signal analysis tools.
Existing spectrum analyzers face limitations in terahertz bandwidth applications.
Silicon photonics offers a promising platform for integrated optical devices.

Purpose of the Study:

To demonstrate a novel terahertz bandwidth radio-frequency spectrum analyzer.
To utilize silicon nanowires and cross-phase modulation for spectrum analysis.
To assess the device's performance for ultrahigh-speed optical signal characterization.

Main Methods:

Fabrication of a silicon nanowire-based device.
Implementation of cross-phase modulation for signal analysis.
Characterization of a 640 Gbaud on-off-keyed data stream.

Main Results:

Accurate characterization of a 640 Gbaud data stream was achieved.
The device demonstrated potential for optical time-division multiplexing optimization.
No reduction in device efficiency or accuracy was observed due to free carrier effects (two-photon absorption, free-carrier absorption, or free-carrier cross-chirp).

Conclusions:

Silicon nanowire-based spectrum analyzers offer a viable solution for terahertz bandwidth applications.
The demonstrated device is suitable for optical performance monitoring of ultrahigh-speed signals.
The device's robustness against free carrier effects ensures reliable performance in silicon photonic integrated circuits.