Incident angle-tuned, broadband, ultrahigh-sensitivity plasmonic antennas prepared from nanoparticles on imprinted mirrors.

We have used a direct imprint-in-metal method that is cheap and rapid to prepare incident angle-tuned, broadband, ultrahigh-sensitivity plasmonic antennas from nanoparticles (NPs) and imprinted metal mirrors. By changing the angle of incidence, the nanoparticle-imprinted mirror antennas (NIMAs) exhibited broadband electromagnetic enhancement from the visible to the near-infrared (NIR) regime, making them suitable for use as surface-enhanced Raman scattering (SERS)-active substrates. Unlike other SERS-active substrates that feature various structures with different periods or morphologies, the NIMAs achieved broadband electromagnetic enhancement from single configurations. The enhancement of the electric field intensity in the NIMAs originated from coupling between the localized surface plasmon resonance of the NPs and the periodic structure-excited surface plasmon resonance (SPR) of the imprinted mirror. Moreover, the coupling wavelengths could be modulated because the SPR wavelength was readily tuned by changing the angle of the incident light. Herein, we demonstrate that such NIMAs are robust substrates for visible and NIR surface-enhanced resonance Raman scattering under multiple laser lines (532, 633, and 785 nm) of excitation. In addition, we have found that NIMAs are ultrasensitive SERS-active substrates that can detect analytes (e.g., rhodamine 6G) at concentrations as low as 10(-15) M.

[1]  Liguang Xu,et al.  A SERS active gold nanostar dimer for mercury ion detection. , 2013, Chemical communications.

[2]  J. Baumberg,et al.  Reproducible Deep-UV SERRS on Aluminum Nanovoids. , 2013, The journal of physical chemistry letters.

[3]  C. Cordeiro,et al.  Surface-Enhanced Resonance Raman Scattering (SERRS) Using Au Nanohole Arrays on Optical Fiber Tips , 2013, Plasmonics.

[4]  Mohsen Rahmani,et al.  Ultrasensitive broadband probing of molecular vibrational modes with multifrequency optical antennas. , 2013, ACS nano.

[5]  Hung-Hsin Chen,et al.  Enhanced Transmission of Higher Order Plasmon Modes With Random Au Nanoparticles in Periodic Hole Arrays , 2013, IEEE Photonics Technology Letters.

[6]  A. S. Davis,et al.  Near-infrared surface-enhanced Raman spectroscopy (NIR-SERS) for the identification of eosin Y: theoretical calculations and evaluation of two different nanoplasmonic substrates. , 2012, The journal of physical chemistry. A.

[7]  David R. Smith,et al.  Plasmon ruler with angstrom length resolution. , 2012, ACS nano.

[8]  Mohsen Rahmani,et al.  Multiresonant broadband optical antennas as efficient tunable nanosources of second harmonic light. , 2012, Nano letters.

[9]  P. Kik,et al.  Post-fabrication voltage controlled resonance tuning of nanoscale plasmonic antennas. , 2012, ACS nano.

[10]  L. Dal Negro,et al.  Concentric necklace nanolenses for optical near-field focusing and enhancement. , 2012, ACS nano.

[11]  Guofeng Song,et al.  Multiple Surface Plasmon Resonances in Compound Structure with Metallic Nanoparticle and Nanohole Arrays , 2012, Plasmonics.

[12]  Miguel Navarro-Cia,et al.  Broad-band near-infrared plasmonic nanoantennas for higher harmonic generation. , 2012, ACS nano.

[13]  Martin Moskovits,et al.  Plasmonic properties of gold nanoparticles separated from a gold mirror by an ultrathin oxide. , 2012, Nano letters.

[14]  Shao-Chin Tseng,et al.  Using the nanoimprint-in-metal method to prepare corrugated metal structures for plasmonic biosensors through both surface plasmon resonance and index-matching effects , 2012, 2012 IEEE Sensors.

[15]  Y. Ekinci,et al.  Deep-UV surface-enhanced resonance Raman scattering of adenine on aluminum nanoparticle arrays. , 2012, Journal of the American Chemical Society.

[16]  Liguang Xu,et al.  Gold nanorod assembly based approach to toxin detection by SERS , 2012 .

[17]  Richard F. Haglund,et al.  Revealing plasmonic gap modes in particle-on-film systems using dark-field spectroscopy. , 2012, ACS nano.

[18]  L. Dal Negro,et al.  Engineering photonic-plasmonic coupling in metal nanoparticle necklaces. , 2011, ACS nano.

[19]  Wen-Di Li,et al.  Three-dimensional cavity nanoantenna coupled plasmonic nanodots for ultrahigh and uniform surface-enhanced Raman scattering over large area. , 2011, Optics express.

[20]  David R. Smith,et al.  Gold nanoparticles on polarizable surfaces as Raman scattering antennas. , 2010, ACS nano.

[21]  A. Hohenau,et al.  Thermo-induced electromagnetic coupling in gold/polymer hybrid plasmonic structures probed by surface-enhanced raman scattering. , 2010, ACS nano.

[22]  Gilbert C Walker,et al.  Composite nanoparticle nanoslit arrays: a novel platform for LSPR mediated subwavelength optical transmission. , 2010, Optics express.

[23]  Luca Dal Negro,et al.  Multiple-wavelength plasmonic nanoantennas. , 2010, Optics letters.

[24]  Jonghwa Lee,et al.  Enhanced surface plasmon resonance by Au nanoparticles immobilized on a dielectric SiO2 layer on a gold surface. , 2009, Analytica chimica acta.

[25]  Peter Nordlander,et al.  Substrates matter: influence of an adjacent dielectric on an individual plasmonic nanoparticle. , 2009, Nano letters.

[26]  Sang Woo Han,et al.  High-yield synthesis of multi-branched gold nanoparticles and their surface-enhanced Raman scattering properties. , 2009, Journal of colloid and interface science.

[27]  S S Kuo,et al.  Using direct nanoimprinting to study extraordinary transmission in textured metal films. , 2008, Optics express.

[28]  X Wang,et al.  Optical transmission through hexagonal arrays of subwavelength holes in thin metal films. , 2007, Nano letters.

[29]  Teodor Veres,et al.  Nanoimprinted SERS-Active Substrates with Tunable Surface Plasmon Resonances , 2007 .

[30]  L. J. Guo,et al.  Nanoimprint Lithography: Methods and Material Requirements , 2007 .

[31]  Teri W Odom,et al.  Direct evidence for surface plasmon-mediated enhanced light transmission through metallic nanohole arrays. , 2006, Nano letters.

[32]  Thomas Huser,et al.  Improving nanoprobes using surface-enhanced Raman scattering from 30-nm hollow gold particles. , 2006, Analytical chemistry.

[33]  N J Halas,et al.  Plasmons in the metallic nanoparticle-film system as a tunable impurity problem. , 2005, Nano letters.

[34]  J. Michiels,et al.  Single-molecule surface enhanced resonance Raman spectroscopy of the enhanced green fluorescent protein. , 2003, Journal of the American Chemical Society.

[35]  Lin He,et al.  Colloidal Au-Enhanced Surface Plasmon Resonance for Ultrasensitive Detection of DNA Hybridization , 2000 .

[36]  H. Lezec,et al.  Extraordinary optical transmission through sub-wavelength hole arrays , 1998, Nature.

[37]  A. Campion,et al.  Surface-enhanced Raman scattering , 1998 .

[38]  S. Chou,et al.  Imprint Lithography with 25-Nanometer Resolution , 1996, Science.

[39]  P. Hildebrandt,et al.  Surface-enhanced resonance Raman spectroscopy of Rhodamine 6G adsorbed on colloidal silver , 1984 .