Print Email Facebook Twitter Plasmonic enhancement of photoacoustic-induced reflection changes Title Plasmonic enhancement of photoacoustic-induced reflection changes Author De Haan, Guido (Advanced Research Center for Nanolithography, Amsterdam; Universiteit van Amsterdam) Verrina, Vanessa (Advanced Research Center for Nanolithography, Amsterdam; Universiteit van Amsterdam) Adam, A.J.L. (TU Delft ImPhys/Optics) Zhang, Hao (Advanced Research Center for Nanolithography, Amsterdam) Planken, Paul C.M. (Advanced Research Center for Nanolithography, Amsterdam; Universiteit van Amsterdam) Date 2021 Abstract In this paper, we report on surface-plasmon-resonance enhancement of the time-dependent reflection changes caused by laser-induced acoustic waves.We measure an enhancement of the reflection changes induced by several acoustical modes, such as longitudinal, quasi-normal, and surface acoustic waves, by a factor of 10-20.We show that the reflection changes induced by the longitudinal and quasi-normal modes are enhanced in the wings of the surface plasmon polariton resonance. The surface acoustic wave-induced reflection changes are enhanced on the peak of this resonance.We attribute the enhanced reflection changes to the longitudinal wave and the quasi-normal mode to a shift in the surface plasmon polariton resonance via acoustically induced electron density changes and via grating geometry changes. To reference this document use: http://resolver.tudelft.nl/uuid:80c7a339-94cf-41c1-a91a-66ff9def315a DOI https://doi.org/10.1364/AO.432659 ISSN 1559-128X Source Applied Optics, 60 (24), 7304-7313 Part of collection Institutional Repository Document type journal article Rights © 2021 Guido De Haan, Vanessa Verrina, A.J.L. Adam, Hao Zhang, Paul C.M. Planken Files PDF ao_60_24_7304.pdf 11.03 MB Close viewer /islandora/object/uuid:80c7a339-94cf-41c1-a91a-66ff9def315a/datastream/OBJ/view