title: High directivity optical antenna substrates for surface enhanced Raman scattering.
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 × 10(10) , which is more than two orders of magnitude larger than optical antennas without the gold strips and gold mirror.
authors: Harvard School of Engineering and Applied Sciences, 33 Oxford Street, Cambridge, MA 02138, USA.
authors: Dongxing
authors: D
authors: Wang
authors: Wenqi
authors: W
authors: Zhu
authors: Yizhuo
authors: Y
authors: Chu
authors: Kenneth B
authors: KB
authors: Crozier
mesh_terms: D006046:Gold / Q000737:chemistry; D055096:Optical Devices; D012822:Silicon Dioxide / Q000737:chemistry; D013059:Spectrum Analysis, Raman
chemical_list: D006046:Gold; D012822:Silicon Dioxide