Thin-Film Thermophoresis in Photoninc Band Gap Fibers for Sub-nanoMolar Raman Sensing Sensitivity

Basil G. Eleftheriades; Emily E. Storey; Amr S. Helmy

doi:10.1364/CLEO_SI.2021.SM3O.3

Conference on Lasers and Electro-Optics
OSA Technical Digest (Optica Publishing Group, 2021),
paper SM3O.3
•https://doi.org/10.1364/CLEO_SI.2021.SM3O.3

Thin-Film Thermophoresis in Photoninc Band Gap Fibers for Sub-nanoMolar Raman Sensing Sensitivity

Basil G. Eleftheriades, Emily E. Storey, and Amr S. Helmy

CLEO: Science and Innovations 2021

San Jose, California United States
9–14 May 2021
ISBN: 978-1-943580-91-0

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Emerging Topics in Optical Sensing and Biomarker Detection (SM3O)

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B. G. Eleftheriades, E. E. Storey, and A. S. Helmy, "Thin-Film Thermophoresis in Photoninc Band Gap Fibers for Sub-nanoMolar Raman Sensing Sensitivity," in Conference on Lasers and Electro-Optics, J. Kang, S. Tomasulo, I. Ilev, D. Müller, N. Litchinitser, S. Polyakov, V. Podolskiy, J. Nunn, C. Dorrer, T. Fortier, Q. Gan, and C. Saraceno, eds., OSA Technical Digest (Optica Publishing Group, 2021), paper SM3O.3.

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Abstract

We present sub-nanomolar Raman detection of nanoparticles, without SERS, enabled by thin-film thermophoreis via photonic bandgap confinement. We achieve sensitivity-of- detection at 0.240 nM, an enhancement of over 8 orders of magnitude.

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