Highly directional plasmomechanic stretchable strain sensor

Asad Nauman, Jae Won Lee, Jun Chan Choi, Hafiz Saad Khaliq, Junkai Wang, Hak Rin Kim

Research output: Contribution to journalConference articlepeer-review

Abstract

We report asymmetric tuning of nanogap resonance between gold nanoparticles (Au NPs), deposited on anisotropically stretchable polydimethylsiloxane (PDMS) for directional strain sensing. The alternate high and low Young's modulus PDMS line patterns induce anisotropic Poisson's effect (0.45 to 0.61), resulting in direction-dependent plasmon resonance between the Au NPs. For the light polarized perpendicular to the stretching direction, the maximum absorbance peak shift of ~90.85 nm and ~39.13 nm is achieved for 0 = 0° and 0 = 90° direction, respectively.

Original languageEnglish
Pages (from-to)1443-1444
Number of pages2
JournalInternational Conference on Metamaterials, Photonic Crystals and Plasmonics
StatePublished - 2023
Event13th International Conference on Metamaterials, Photonic Crystals and Plasmonics, META 2023 - Paris, France
Duration: 18 Jul 202321 Jul 2023

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