Communication

High Directivity Optical Antenna Substrates for Surface Enhanced Raman Scattering

  1. Dongxing Wang,
  2. Wenqi Zhu,
  3. Yizhuo Chu,
  4. Kenneth B. Crozier*

Article first published online: 3 JUL 2012

DOI: 10.1002/adma.201201625

Issue

Advanced Materials

Advanced Materials

Volume 24, Issue 32, pages 4376–4380, August 22, 2012

Additional Information

How to Cite

Wang, D., Zhu, W., Chu, Y. and Crozier, K. B. (2012), High Directivity Optical Antenna Substrates for Surface Enhanced Raman Scattering. Adv. Mater., 24: 4376–4380. doi: 10.1002/adma.201201625

Author Information

  1. Harvard School of Engineering and Applied Sciences, 33 Oxford Street, Cambridge, 02138, USA

*Harvard School of Engineering and Applied Sciences, 33 Oxford Street, Cambridge, 02138, USA.

Publication History

  1. Issue published online: 13 AUG 2012
  2. Article first published online: 3 JUL 2012
  3. Manuscript Revised: 26 MAY 2012
  4. Manuscript Received: 23 APR 2012

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Keywords:

  • SERS;
  • surface enhanced Raman scattering;
  • plasmonic;
  • optical antennae
Thumbnail image of graphical abstract

A two-dimensional array of gold optical antennas integrated with a one-dimensional array of gold strips and mirrors is introduced and fabricated. The experimental results show that this design achieves average surface-enhanced Raman scattering (SERS) enhancement factors as high as 1.2 × 1010, which is more than two orders of magnitude larger than optical antennas without the gold strips and gold mirror.

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