Surface Plasmon-Coupled Directional Enhanced Raman Scattering by Means of the Reverse Kretschmann Configuration.

Surface-enhanced Raman scattering (SERS) is a unique analytical technique that provides fingerprint spectra, yet facing the obstacle of low collection efficiency. In this study, we demonstrated a simple approach to measure surface plasmon-coupled directional enhanced Raman scattering by means of the reverse Kretschmann configuration (RK-SPCR). Highly directional and p-polarized Raman scattering of 4-aminothiophenol (4-ATP) was observed on a nanoparticle-on-film substrate at 46° through the prism coupler with a sharp angle distribution (full width at half-maximum of ∼3.3°). Because of the improved collection efficiency, the Raman scattering signal was enhanced 30-fold over the conventional SERS mode; this was consistent with finite-difference time-domain simulations. The effect of nanoparticles on the coupling efficiency of propagated surface plasmons was investigated. Possessing straightforward implementation and directional enhancement of Raman scattering, RK-SPCR is anticipated to simplify SERS instruments and to be broadly applicable to biochemical assays.

[1]  G. Rao,et al.  Spectral resolution of molecular ensembles under ambient conditions using surface plasmon coupled fluorescence emission. , 2009, Applied optics.

[2]  Hongxing Xu,et al.  Ascertaining p,p'-dimercaptoazobenzene produced from p-aminothiophenol by selective catalytic coupling reaction on silver nanoparticles. , 2010, Langmuir : the ACS journal of surfaces and colloids.

[3]  Shuping Xu,et al.  Directional emission of surface-enhanced Raman scattering based on a planar-film plasmonic antenna , 2012 .

[4]  D. Meisel,et al.  Adsorption and surface-enhanced Raman of dyes on silver and gold sols , 1982 .

[5]  Joseph R Lakowicz,et al.  Radiative decay engineering 3. Surface plasmon-coupled directional emission. , 2004, Analytical biochemistry.

[6]  J. Lakowicz,et al.  Use of silver nanoparticles to enhance surface plasmon-coupled emission (SPCE). , 2008, Chemical physics letters.

[7]  Zygmunt Gryczynski,et al.  Surface Plasmon-Coupled Emission with Gold Films. , 2004, The journal of physical chemistry. B.

[8]  S. Ushioda,et al.  Surface plasmon polariton enhancement of Raman scattering in a Kretschmann geometry , 1988 .

[9]  Bing Zhao,et al.  Long-Range Surface Plasmon Field-Enhanced Raman Scattering Spectroscopy Based on Evanescent Field Excitation , 2011 .

[10]  J. Lakowicz,et al.  Distance dependence of surface plasmon-coupled emission observed using Langmuir-Blodgett films. , 2007, Applied physics letters.

[11]  Michael J. Natan,et al.  SURFACE PLASMON RESONANCE OF AU COLLOID-MODIFIED AU FILMS : PARTICLE SIZE DEPENDENCE , 1999 .

[12]  Masayuki Futamata,et al.  Surface-Plasmon-Polariton-Enhanced Raman Scattering from Self-Assembled Monolayers of p-Nitrothiophenol and p-Aminothiophenol on Silver , 1995 .

[13]  Tian Yang,et al.  Optical antennas integrated with concentric ring gratings: electric field enhancement and directional radiation. , 2011, Optics express.

[14]  Shuo-Hui Cao,et al.  Surface plasmon-coupled emission: what can directional fluorescence bring to the analytical sciences? , 2012, Annual review of analytical chemistry.

[15]  J. Lombardi,et al.  Waveguide-Enhanced Surface Plasmons for Ultrasensitive SERS Detection , 2013 .

[16]  Lin He,et al.  The Distance-Dependence of Colloidal Au-Amplified Surface Plasmon Resonance , 2004 .

[17]  Emily A. Smith,et al.  Near IR scanning angle total internal reflection Raman spectroscopy at smooth gold films. , 2012, Analytical chemistry.

[18]  Z. Tian,et al.  Label-free aptasensor based on ultrathin-linker-mediated hot-spot assembly to induce strong directional fluorescence. , 2014, Journal of the American Chemical Society.

[19]  Zhong-Qun Tian,et al.  When the signal is not from the original molecule to be detected: chemical transformation of para-aminothiophenol on Ag during the SERS measurement. , 2010, Journal of the American Chemical Society.

[20]  K.-T. Huang,et al.  A compact surface plasmon resonance and surface-enhanced Raman scattering sensing device , 2004, SPIE BiOS.

[21]  Shuo-Hui Cao,et al.  Electric field assisted surface plasmon-coupled directional emission: an active strategy on enhancing sensitivity for DNA sensing and efficient discrimination of single base mutation. , 2011, Journal of the American Chemical Society.

[22]  Zhong-Qun Tian,et al.  Surface-enhanced Raman spectroscopic study of p-aminothiophenol. , 2012, Physical chemistry chemical physics : PCCP.

[23]  Y. Ozaki,et al.  Surface-Enhanced Raman Spectroscopy , 2005 .

[24]  Jun Hu,et al.  Multiplexed SERS detection of DNA targets in a sandwich-hybridization assay using SERS-encoded core–shell nanospheres , 2012 .

[25]  Myoglobin immunoassay utilizing directional surface plasmon-coupled emission. , 2004, Analytical chemistry.

[26]  Edgar Voges,et al.  Analysis of plasmon resonance and surface-enhanced Raman scattering on periodic silver structures , 2000 .

[27]  Xiaocong Yuan,et al.  Tightly Focused Radially Polarized Beam for Propagating Surface Plasmon-Assisted Gap-Mode Raman Spectroscopy , 2011 .

[28]  Baptiste Auguié,et al.  Combined SPR and SERS microscopy in the Kretschmann configuration. , 2012, The journal of physical chemistry. A.

[29]  Xiaocong Yuan,et al.  Emission pattern of surface-enhanced Raman scattering from single nanoparticle-film junction , 2013 .

[30]  X. Yuan,et al.  Surface plasmon-coupled emission from shaped PMMA films doped with fluorescence molecules. , 2010, Optics express.

[31]  Emily A. Smith,et al.  Plasmon waveguide resonance Raman spectroscopy. , 2012, Analytical chemistry.

[32]  Hayato Chiba,et al.  Highly sensitive Raman spectroscopy using a gap mode plasmon under an attenuated total reflection geometry , 2014 .

[33]  I Gryczynski,et al.  Application of surface plasmon coupled emission to study of muscle. , 2006, Biophysical journal.

[34]  Shuo-Hui Cao,et al.  Prism-based surface plasmon coupled emission imaging. , 2012, Chemphyschem : a European journal of chemical physics and physical chemistry.

[35]  J. Lakowicz,et al.  First Observation of Surface Plasmon-Coupled Chemiluminescence (SPCC). , 2007, Chemical physics letters.

[36]  Joseph R. Lakowicz,et al.  Directional Surface Plasmon Coupled Emission , 2004, Journal of Fluorescence.

[37]  Shuping Xu,et al.  Localized and propagating surface plasmon co-enhanced Raman spectroscopy based on evanescent field excitation. , 2011, Chemical communications.

[38]  Zygmunt Gryczynski,et al.  Radiative decay engineering 4. Experimental studies of surface plasmon-coupled directional emission. , 2004, Analytical biochemistry.

[39]  Bing Zhao,et al.  Note: Simultaneous measurement of surface plasmon resonance and surface-enhanced Raman scattering. , 2010, The Review of scientific instruments.

[40]  R. Corn,et al.  Surface Plasmon-Enhanced Raman Scattering at Thin Silver Films. , 1984 .

[41]  Shuping Xu,et al.  Evanescent field excited plasmonic nano-antenna for improving SERS signal. , 2013, Physical chemistry chemical physics : PCCP.

[42]  Shuo-Hui Cao,et al.  Directional surface plasmon-coupled emission of CdTe quantum dots and its application in Hg(II) sensing , 2012 .

[43]  C. D. Geddes,et al.  Surface Plasmon Coupled Phosphorescence (SPCP). , 2006, Chemical physics letters.

[44]  R. Swathi,et al.  Ag@SiO2 Core-Shell Nanostructures: Distance-Dependent Plasmon Coupling and SERS Investigation. , 2012, The journal of physical chemistry letters.

[45]  Eric C Le Ru,et al.  Combining surface plasmon resonance (SPR) spectroscopy with surface-enhanced Raman scattering (SERS). , 2011, Analytical chemistry.

[46]  M. Potara,et al.  Folic acid-conjugated, SERS-labeled silver nanotriangles for multimodal detection and targeted photothermal treatment on human ovarian cancer cells. , 2014, Molecular pharmaceutics.