scholarly journals Spatially Resolving the Enhancement Effect in Surface-Enhanced Coherent Anti-Stokes Raman Scattering by Plasmonic Doppler Gratings

ACS Nano ◽  
2020 ◽  
Author(s):  
Lei Ouyang ◽  
Tobias Meyer-Zedler ◽  
Kel-Meng See ◽  
Wei-Liang Chen ◽  
Fan-Cheng Lin ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Enhancement Effect ◽  
Surface Enhanced ◽  
Anti Stokes

Erratum: Second enhancement in surface-enhanced resonance Raman scattering revealed by an analysis of anti-Stokes and Stokes Raman spectra [Phys. Rev. B76, 085405 (2007)]

2007 ◽  
Vol 76 (12) ◽  
Author(s):  
Tamitake Itoh ◽  
Kenichi Yoshida ◽  
Vasudevanpillai Biju ◽  
Yasuo Kikkawa ◽  
Mitsuru Ishikawa ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Raman Spectra ◽  
Resonance Raman ◽  
Resonance Raman Scattering ◽  
Surface Enhanced ◽  
Anti Stokes

scholarly journals Wide-field Surface-Enhanced Coherent Anti-Stokes Raman Scattering Microscopy

2021 ◽  
Author(s):  
Cheng Zong ◽  
Ran Cheng ◽  
Fukai Chen ◽  
Peng Lin ◽  
Meng Zhang ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Large Scale ◽  
Time Lapse ◽  
Live Cells ◽  
Large Field ◽  
Wide Field ◽  
Label Free ◽  
Label Free Detection ◽  
Surface Enhanced ◽  
Anti Stokes

Surface-enhanced Raman scattering (SERS) spectroscopy has been used extensively to study biology, chemistry, and materials. However, a point-by-point SERS mapping is time-consuming, taking minutes to hours for large-scale imaging. Here, we report a wide-field surface-enhanced coherent anti-Stokes Raman scattering (WISE-CARS) microscopy for monitoring nanotags in live cells and label-free detection of metabolic molecules. The WISE-CARS microscope achieves an imaging speed as fast as 120 frames per second for a large field of view of 130 microns X 130 microns. By spectral focusing of femtosecond lasers, a hyperspectral WISE-CARS stack of 120 frames can be acquired with a spectral resolution of 10 cm-1, where over 1 million Raman spectra are parallelly recorded within 0.5 seconds. As applications, we demonstrate time-lapse, 3D WISE-CARS imaging of nanotags in live cells as well as label-free detection of adenine released from S. aureus.

Measurement of the Surface-Enhanced Coherent Anti-Stokes Raman Scattering (SECARS) Due to the 1574 cm−1 Surface-Enhanced Raman Scattering (SERS) Mode of Benzenethiol Using Low-Power (<20 mW) CW Diode Lasers

2013 ◽  
Vol 67 (2) ◽  
pp. 132-135 ◽  
Author(s):  
Roshan L. Aggarwal ◽  
Lewis W. Farrar ◽  
Nathan G. Greeneltch ◽  
Richard P. Van Duyne ◽  
Dennis L. Polla
Keyword(s):  
Raman Scattering ◽  
Laser Power ◽  
Surface Concentration ◽  
Surface Enhanced Raman Scattering ◽  
Sers Substrate ◽  
Nonlinear Optical Susceptibility ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering ◽  
Anti Stokes

The surface-enhanced coherent anti-Stokes Raman scattering (SECARS) from a self-assembled monolayer (SAM) of benzenethiol on a silver-coated surface-enhanced Raman scattering (SERS) substrate has been measured for the 1574 cm−1 SERS mode. A value of 9.6 ± 1.7 × 10−14 W was determined for the resonant component of the SECARS signal using 17.8 mW of 784.9 nm pump laser power and 7.1 mW of 895.5 nm Stokes laser power; the pump and Stokes lasers were polarized parallel to each other but perpendicular to the grooves of the diffraction grating in the spectrometer. The measured value of resonant component of the SECARS signal is in agreement with the calculated value of 9.3 × 10−14 W using the measured value of 8.7 ± 0.5 cm−1 for the SERS linewidth Γ (full width at half-maximum) and the value of 5.7 ± 1.4 × 10−7 for the product of the Raman cross section σSERS and the surface concentration Ns of the benzenethiol SAM. The xxxx component of the resonant part of the third-order nonlinear optical susceptibility |3χ(3) R xxxx| for the 1574 cm−1 SERS mode has been determined to be 4.3 ± 1.1 × 10−5 cmg−1·s2. The SERS enhancement factor for the 1574 cm−1 mode was determined to be 3.6 ± 0. 9 × 107 using the value of 1.8 × 1015 molecules/cm2 for Ns.

Experimental observation of surface-enhanced coherent anti-Stokes Raman scattering

1994 ◽  
Vol 227 (1-2) ◽  
pp. 115-120 ◽  
Author(s):  
E.J. Liang ◽  
A. Weippert ◽  
J.-M. Funk ◽  
A. Materny ◽  
W. Kiefer
Keyword(s):  
Raman Scattering ◽  
Experimental Observation ◽  
Surface Enhanced ◽  
Anti Stokes

Imaging properties of surface-enhanced coherent anti-Stokes Raman scattering microscopy on thin gold films

2017 ◽  
Vol 34 (10) ◽  
pp. 2104 ◽  
Author(s):  
John P. Kenison ◽  
Alexander Fast ◽  
Facheng Guo ◽  
Alexander LeBon ◽  
Wei Jiang ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Gold Films ◽  
Surface Enhanced ◽  
Anti Stokes ◽  
Imaging Properties

Synthesis of Large-Area MoSe2 Monolayer Film for Surface-Enhanced Raman Scattering Analysis

NANO ◽  
2021 ◽  
pp. 2150076
Author(s):  
Kongjia Zheng ◽  
Jianjun Deng ◽  
Zhonghao Zhou ◽  
Jinglong Chen ◽  
Zhiyong Wang ◽  
...  
Keyword(s):  
Transition Metal ◽  
Raman Scattering ◽  
Surface Enhanced Raman Scattering ◽  
Chemical Vapor Deposition Method ◽  
Enhancement Effect ◽  
Transition Metal Dichalcogenide ◽  
Two Dimensional ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

Ultrathin two-dimensional transition metal dichalcogenides represent a promising new class of materials with surface-enhanced Raman scattering (SERS) activities. Previous work mainly focused on the SERS effects of transition metal dichalcogenide crystals with sizes of micrometer scale. The enhancement effect is usually nonuniform on the SERS substrates. In this paper, we report a chemical vapor deposition method for the preparation of centimeter-scale MoSe2 films with uniform and high SERS activity. The molybdenum precursors are supplied in a “face-to-face” manner from a silica gel plate to the growth substrate, which guarantees uniform nucleation and growth of the monolayer MoSe2. We demonstrate that the monolayer MoSe2 film has strong SERS effect, which can be attributed to charge transfer between MoSe2 and the probe molecules. The detection limit of Rhodamine B on monolayer MoSe2 is determined to be 10[Formula: see text][Formula: see text]mol/L, and the Raman enhancement factor is estimated to be [Formula: see text]. Due to its atomic uniformity and chemical stability, the MoSe2 film can serve as an ideal two-dimensional SERS material for detection of various molecules.

Engineering of Fano resonance in a cross bowtie nanostructure for surface enhanced coherent anti-Stokes Raman scattering

2017 ◽  
Vol 46 (10) ◽  
pp. 1006005
Author(s):  
张祖银 Zhang Zuyin ◽  
朱海军 Zhu Haijun ◽  
宋国峰 Song Guofeng
Keyword(s):  
Raman Scattering ◽  
Fano Resonance ◽  
Surface Enhanced ◽  
Anti Stokes

Single-Molecule Detection of a Cyanine Dye in Silver Colloidal Solution Using Near-Infrared Surface-Enhanced Raman Scattering

1998 ◽  
Vol 52 (2) ◽  
pp. 175-178 ◽  
Author(s):  
Katrin Kneipp ◽  
Harald Kneipp ◽  
Geurt Deinum ◽  
Irving Itzkan ◽  
Ramachandra R. Dasari ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Single Molecule ◽  
Near Infrared ◽  
Colloidal Solution ◽  
Single Molecule Detection ◽  
Cyanine Dye ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering ◽  
Anti Stokes

Single-molecule Raman spectroscopy of a cyanine dye in aqueous silver colloidal solution with the use of surface-enhanced Raman scattering at near-infrared excitation (NIR-SERS) is reported. A characteristic Poisson distribution of SERS signals due to the Brownian motion of single dye molecule-loaded silver particles reflects the probability of finding 0, 1, or 2 1,1'-diethyl-2,2'cyanine (PIC) molecules in the probed volume during an actual measurement and is evidence that single-molecule detection by SERS has been achieved. Spectra measured in 1 s collection time with 100 mW nonresonant 830 nm excitation provide a clear “fingerprint” of a single PIC molecule by showing its typical Raman lines between 700 and 1700 cm−1. Single-molecule Raman signals are also detected for the first time at the anti-Stokes side of the excitation laser. Effective Raman cross sections for PIC of ∼10−16 cm2 per molecule can be inferred from the ratio between “pumped” anti-Stokes and Stokes signals.

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