Jump to main content
Jump to site search


Probing the coupling of butterfly wing photonic crystals to plasmon resonances with surface-enhanced Raman spectroscopy

Author affiliations

Abstract

Both plasmonic and photonic materials manipulate light by structurally-defined optical properties. While photonic architectures can promote the scattering and reflection of certain wavelengths of light, plasmonic materials have plasmon resonances that confine light at the nanoscale. Coupling photonic materials to plasmon resonances could enhance the plasmonic response via wavelength-dependent interference and confinement properties. Here we explore the use of wavelength-dependent, naturally-abundant photonic crystal structures found in butterfly wings as substrates for plasmonic nanoparticle deposition, and probe the plasmonic–photonic interactions using surface-enhanced Raman spectroscopy. To better understand the wavelength dependence of field enhancement and localization of these systems, we examined the SERS responses of plasmonic nanoparticles deposited on four different butterfly wing colors with three excitation wavelengths. We find that excitation at wavelengths most closely matching the butterfly wing color produces the most intense SERS signal, with signal magnitude increases up to an order of magnitude, beyond a mere additive effect. These naturally abundant photonic structures show potential to create cheaper, wavelength-selective SERS substrates, and they provide a quantitative insight on plasmon–photonic crystal coupling.

Graphical abstract: Probing the coupling of butterfly wing photonic crystals to plasmon resonances with surface-enhanced Raman spectroscopy

Back to tab navigation

Supplementary files

Publication details

The article was received on 18 May 2019, accepted on 18 Oct 2019 and first published on 25 Oct 2019


Article type: Paper
DOI: 10.1039/C9TC02629K
J. Mater. Chem. C, 2019, Advance Article

  •   Request permissions

    Probing the coupling of butterfly wing photonic crystals to plasmon resonances with surface-enhanced Raman spectroscopy

    L. D. Palmer, J. L. Brooks and R. R. Frontiera, J. Mater. Chem. C, 2019, Advance Article , DOI: 10.1039/C9TC02629K

Search articles by author

Spotlight

Advertisements