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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 6, Iss. 8 — Aug. 26, 2011

Superresolution vibrational imaging by simultaneous detection of Raman and hyper-Raman scattering

Korenobu Matsuzaki, Rintaro Shimada, and Hiro-o Hamaguchi  »View Author Affiliations

Optics Letters, Vol. 36, Issue 13, pp. 2545-2547 (2011)

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We have developed a superresolution vibrational imaging method by simultaneous detection of Raman and hyper-Raman scattering. Raman and hyper-Raman images obtained with the same laser spot carry independent information on the sample spatial distribution, owing to different signal dependence (linear in Raman and quadratic in hyper-Raman) on the incident light intensity. This information can be quantitatively analyzed to recover the incident light intensity distribution at the focal plane. A superresolution vibrational image is then derived by the constrained deconvolution of the images by the obtained incident light intensity distribution. This method has been applied to a TiO 2 nanostructure and the obtained superresolution image was compared with a scanning electron microscopy image. The spatial resolution achieved by the present method is evaluated to be 160 nm , which is more than twice better than the diffraction limited resolution.

© 2011 Optical Society of America

OCIS Codes
(100.1830) Image processing : Deconvolution
(100.6640) Image processing : Superresolution
(300.6330) Spectroscopy : Spectroscopy, inelastic scattering including Raman
(180.5655) Microscopy : Raman microscopy

ToC Category:

Original Manuscript: March 31, 2011
Revised Manuscript: June 4, 2011
Manuscript Accepted: June 6, 2011
Published: July 1, 2011

Virtual Issues
Vol. 6, Iss. 8 Virtual Journal for Biomedical Optics

Korenobu Matsuzaki, Rintaro Shimada, and Hiro-o Hamaguchi, "Superresolution vibrational imaging by simultaneous detection of Raman and hyper-Raman scattering," Opt. Lett. 36, 2545-2547 (2011)

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