Nanoscale imaging of carbon nanotubes using tip enhanced Raman spectroscopy in reflection mode

2006 ◽  
Vol 132 ◽  
pp. 215-225 ◽  
Author(s):  
Debdulal Roy ◽  
Jian Wang ◽  
M. E. Welland
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectroscopy ◽  
Reflection Mode ◽  
Nanoscale Imaging ◽  
Tip Enhanced Raman Spectroscopy

scholarly journals Deciphering tip-enhanced Raman imaging of carbon nanotubes with deep learning neural networks

2020 ◽  
Vol 22 (32) ◽  
pp. 17857-17866
Author(s):  
Usant Kajendirarajah ◽  
María Olivia Avilés ◽  
François Lagugné-Labarthet
Keyword(s):  
Neural Networks ◽  
Carbon Nanotubes ◽  
Raman Spectroscopy ◽  
Deep Learning ◽  
Raman Imaging ◽  
Tip Enhanced Raman Spectroscopy

Deep learning neural networks enable faster and more accurate nanoscale visualization of carbon nanotubes imaged by tip-enhanced Raman spectroscopy.

scholarly journals Tip-Enhanced Raman Spectroscopy and Imaging: An Apical Illumination Geometry

2008 ◽  
Vol 62 (11) ◽  
pp. 1173-1179 ◽  
Author(s):  
Zachary D. Schultz ◽  
Stephan J. Stranick ◽  
Ira W. Levin
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectroscopy ◽  
Near Field ◽  
Single Wall Carbon Nanotubes ◽  
Surface Distribution ◽  
Cresyl Blue ◽  
Polarized Beam ◽  
Linearly Polarized ◽  
Tip Enhanced Raman Spectroscopy ◽  
Radially Polarized

Results are presented illustrating the use of tip-enhanced Raman spectroscopy (TERS) and imaging in a top-illumination geometry. A radially polarized beam is used to generate an electric field component in the direction of beam propagation, normal to the surface, resulting in a 5× increased enhancement compared to a linearly polarized beam. This multiplicative enhancement facilitates a discrimination of the near-field signal from the far-field Raman background. The top illumination configuration facilitates the application of TERS for investigating molecules on a variety of surfaces, such as Au, glass, and Si. The near-field Raman spectra of Si(100), rhodamine B, brilliant cresyl blue, and single wall carbon nanotubes are presented. Sufficient enhancement is obtained to permit a sub-diffraction-limited resolution Raman imaging of the surface distribution of large bundles of carbon nanotubes of various diameters.

Sign in / Sign up

Export Citation Format

Share Document