Strong Coupling between Plasmonic Gap Modes and Photonic Lattice Modes in DNA-Assembled Gold Nanocube Arrays

Qing Yuan Lin, Zhongyang Li, Keith A. Brown, Matthew N. O'Brien, Michael B. Ross, Yu Zhou, Serkan Butun, Peng Cheng Chen, George C Schatz, Vinayak P. Dravid, Koray Aydin, Chad A. Mirkin

Research output: Contribution to journalArticle

58 Citations (Scopus)

Abstract

Control of both photonic and plasmonic coupling in a single optical device represents a challenge due to the distinct length scales that must be manipulated. Here, we show that optical metasurfaces with such control can be constructed using an approach that combines top-down and bottom-up processes, wherein gold nanocubes are assembled into ordered arrays via DNA hybridization events onto a gold film decorated with DNA-binding regions defined using electron beam lithography. This approach enables one to systematically tune three critical architectural parameters: (1) anisotropic metal nanoparticle shape and size, (2) the distance between nanoparticles and a metal surface, and (3) the symmetry and spacing of particles. Importantly, these parameters allow for the independent control of two distinct optical modes, a gap mode between the particle and the surface and a lattice mode that originates from cooperative scattering of many particles in an array. Through reflectivity spectroscopy and finite-difference time-domain simulation, we find that these modes can be brought into resonance and coupled strongly. The high degree of synthetic control enables the systematic study of this coupling with respect to geometry, lattice symmetry, and particle shape, which together serve as a compelling example of how nanoparticle-based optics can be useful to realize advanced nanophotonic structures that hold implications for sensing, quantum plasmonics, and tunable absorbers.

Original languageEnglish
Pages (from-to)4699-4703
Number of pages5
JournalNano Letters
Volume15
Issue number7
DOIs
Publication statusPublished - Jul 8 2015

Fingerprint

Optical lattices
Gold
DNA
deoxyribonucleic acid
photonics
gold
nanoparticles
Nanoparticles
Nanophotonics
Electron beam lithography
Metal nanoparticles
symmetry
Optical devices
Photonics
metal surfaces
Optics
absorbers
lithography
Metals
spacing

Keywords

  • DNA-mediated assembly
  • gap mode
  • gold nanocubes
  • lattice mode
  • Noble metal nanoparticles
  • photonic
  • plasmonic

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanical Engineering

Cite this

Lin, Q. Y., Li, Z., Brown, K. A., O'Brien, M. N., Ross, M. B., Zhou, Y., ... Mirkin, C. A. (2015). Strong Coupling between Plasmonic Gap Modes and Photonic Lattice Modes in DNA-Assembled Gold Nanocube Arrays. Nano Letters, 15(7), 4699-4703. https://doi.org/10.1021/acs.nanolett.5b01548

Strong Coupling between Plasmonic Gap Modes and Photonic Lattice Modes in DNA-Assembled Gold Nanocube Arrays. / Lin, Qing Yuan; Li, Zhongyang; Brown, Keith A.; O'Brien, Matthew N.; Ross, Michael B.; Zhou, Yu; Butun, Serkan; Chen, Peng Cheng; Schatz, George C; Dravid, Vinayak P.; Aydin, Koray; Mirkin, Chad A.

In: Nano Letters, Vol. 15, No. 7, 08.07.2015, p. 4699-4703.

Research output: Contribution to journalArticle

Lin, QY, Li, Z, Brown, KA, O'Brien, MN, Ross, MB, Zhou, Y, Butun, S, Chen, PC, Schatz, GC, Dravid, VP, Aydin, K & Mirkin, CA 2015, 'Strong Coupling between Plasmonic Gap Modes and Photonic Lattice Modes in DNA-Assembled Gold Nanocube Arrays', Nano Letters, vol. 15, no. 7, pp. 4699-4703. https://doi.org/10.1021/acs.nanolett.5b01548
Lin, Qing Yuan ; Li, Zhongyang ; Brown, Keith A. ; O'Brien, Matthew N. ; Ross, Michael B. ; Zhou, Yu ; Butun, Serkan ; Chen, Peng Cheng ; Schatz, George C ; Dravid, Vinayak P. ; Aydin, Koray ; Mirkin, Chad A. / Strong Coupling between Plasmonic Gap Modes and Photonic Lattice Modes in DNA-Assembled Gold Nanocube Arrays. In: Nano Letters. 2015 ; Vol. 15, No. 7. pp. 4699-4703.
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