標題: Superresolution vibrational imaging by simultaneous detection of Raman and hyper-Raman scattering
作者: Matsuzaki, Korenobu
Shimada, Rintaro
Hamaguchi, Hiro-o
應用化學系
應用化學系分子科學碩博班
Department of Applied Chemistry
Institute of Molecular science
公開日期: 1-Jul-2011
摘要: 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. (C) 2011 Optical Society of America
URI: http://dx.doi.org/10.1364/OL.36.002545
http://hdl.handle.net/11536/21833
ISSN: 0146-9592
DOI: 10.1364/OL.36.002545
期刊: OPTICS LETTERS
Volume: 36
Issue: 13
起始頁: 2545
結束頁: 2547
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