Improved spectral resolution of the femtosecond stimulated Raman spectroscopy achieved by the use of the 2nd-order diffraction method

Prolongation of the picosecond Raman pump laser pulse in the femtosecond stimulated Raman spectroscopy (FSRS) setup is essential for achieving the high spectral resolution of the time-resolved vibrational Raman spectra. In this work, the 2nd-order diffraction has been firstly employed in the double-...

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Autores principales: Kang, Dong-gu, Woo, Kyung Chul, Kang, Do Hyung, Park, Chanho, Kim, Sang Kyu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7873076/
https://www.ncbi.nlm.nih.gov/pubmed/33564098
http://dx.doi.org/10.1038/s41598-021-83090-7
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author Kang, Dong-gu
Woo, Kyung Chul
Kang, Do Hyung
Park, Chanho
Kim, Sang Kyu
author_facet Kang, Dong-gu
Woo, Kyung Chul
Kang, Do Hyung
Park, Chanho
Kim, Sang Kyu
author_sort Kang, Dong-gu
collection PubMed
description Prolongation of the picosecond Raman pump laser pulse in the femtosecond stimulated Raman spectroscopy (FSRS) setup is essential for achieving the high spectral resolution of the time-resolved vibrational Raman spectra. In this work, the 2nd-order diffraction has been firstly employed in the double-pass grating filter technique for realizing the FSRS setup with the sub-5 cm(−1) spectral resolution. It has been experimentally demonstrated that our new FSRS setup gives rise to a highly-resolved Raman spectrum of the excited trans-stilbene, which is much improved from those reported in the literatures. The spectral resolution of the present FSRS system has been estimated to be the lowest value ever reported to date, giving Δν = 2.5 cm(−1).
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spelling pubmed-78730762021-02-10 Improved spectral resolution of the femtosecond stimulated Raman spectroscopy achieved by the use of the 2nd-order diffraction method Kang, Dong-gu Woo, Kyung Chul Kang, Do Hyung Park, Chanho Kim, Sang Kyu Sci Rep Article Prolongation of the picosecond Raman pump laser pulse in the femtosecond stimulated Raman spectroscopy (FSRS) setup is essential for achieving the high spectral resolution of the time-resolved vibrational Raman spectra. In this work, the 2nd-order diffraction has been firstly employed in the double-pass grating filter technique for realizing the FSRS setup with the sub-5 cm(−1) spectral resolution. It has been experimentally demonstrated that our new FSRS setup gives rise to a highly-resolved Raman spectrum of the excited trans-stilbene, which is much improved from those reported in the literatures. The spectral resolution of the present FSRS system has been estimated to be the lowest value ever reported to date, giving Δν = 2.5 cm(−1). Nature Publishing Group UK 2021-02-09 /pmc/articles/PMC7873076/ /pubmed/33564098 http://dx.doi.org/10.1038/s41598-021-83090-7 Text en © The Author(s) 2021 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Kang, Dong-gu
Woo, Kyung Chul
Kang, Do Hyung
Park, Chanho
Kim, Sang Kyu
Improved spectral resolution of the femtosecond stimulated Raman spectroscopy achieved by the use of the 2nd-order diffraction method
title Improved spectral resolution of the femtosecond stimulated Raman spectroscopy achieved by the use of the 2nd-order diffraction method
title_full Improved spectral resolution of the femtosecond stimulated Raman spectroscopy achieved by the use of the 2nd-order diffraction method
title_fullStr Improved spectral resolution of the femtosecond stimulated Raman spectroscopy achieved by the use of the 2nd-order diffraction method
title_full_unstemmed Improved spectral resolution of the femtosecond stimulated Raman spectroscopy achieved by the use of the 2nd-order diffraction method
title_short Improved spectral resolution of the femtosecond stimulated Raman spectroscopy achieved by the use of the 2nd-order diffraction method
title_sort improved spectral resolution of the femtosecond stimulated raman spectroscopy achieved by the use of the 2nd-order diffraction method
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7873076/
https://www.ncbi.nlm.nih.gov/pubmed/33564098
http://dx.doi.org/10.1038/s41598-021-83090-7
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