Nano-patch Antennas Employing Liquid Gallium for High Performance SEIRAS Sensing

Xianglong Miao; Peter Qiang Liu

doi:10.1364/SENSORS.2021.STh5B.3

OSA Optical Sensors and Sensing Congress 2021 (AIS, FTS, HISE, SENSORS, ES)
OSA Technical Digest (Optica Publishing Group, 2021),
paper STh5B.3
•https://doi.org/10.1364/SENSORS.2021.STh5B.3

Nano-patch Antennas Employing Liquid Gallium for High Performance SEIRAS Sensing

Xianglong Miao and Peter Qiang Liu

Optical Sensors 2021

Washington, DC United States
19–23 July 2021
ISBN: 978-1-943580-90-3

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Nanophotonic and Plasmonic Biosensors II (STh5B)

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X. Miao and P. Q. Liu, "Nano-patch Antennas Employing Liquid Gallium for High Performance SEIRAS Sensing," in OSA Optical Sensors and Sensing Congress 2021 (AIS, FTS, HISE, SENSORS, ES), S. Buckley, F. Vanier, S. Shi, K. Walker, I. Coddington, S. Paine, K. Lok Chan, W. Moses, S. Qian, P. Pellegrino, F. Vollmer, G. , J. Jágerská, R. Menzies, L. Emmenegger, and J. Westberg, eds., OSA Technical Digest (Optica Publishing Group, 2021), paper STh5B.3.

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Abstract

We demonstrated a high-performance SEIRAS sensor based on nano-patch antennas for sensing monolayer analyte molecules sandwiched between liquid gallium and gold nano-strips. Close to 10% molecular vibrational absorption due to monolayer 1-octadecanethiol was achieved experimentally.

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