Photonic Time-Stretch Spectroscopy for Multiplex Stimulated Raman Scattering

Photonic Time-Stretch Spectroscopy for Multiplex Stimulated Raman Scattering

Stimulated Raman scattering spectroscopy enables label-free molecular identification, but its broadband implementation is technically challenging. We experimentally demonstrate a novel approach to multiplex stimulated Raman scattering based on photonic time stretch. A telecom fiber stretches the bro...

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Main Authors: Saltarelli Francesco, Kumar Vikas, Viola Daniele, Crisafi Francesco, Preda Fabrizio, Cerullo Giulio, Polli Dario
Format: Article
Language:English
Published: EDP Sciences 2019-01-01
Series:EPJ Web of Conferences
Online Access:https://www.epj-conferences.org/articles/epjconf/pdf/2019/10/epjconf_up2019_03003.pdf
id doaj-98c9af5a2f5647798a4f34bd77f52084
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spelling doaj-98c9af5a2f5647798a4f34bd77f520842021-08-02T18:15:29ZengEDP SciencesEPJ Web of Conferences2100-014X2019-01-012050300310.1051/epjconf/201920503003epjconf_up2019_03003Photonic Time-Stretch Spectroscopy for Multiplex Stimulated Raman ScatteringSaltarelli Francesco0Kumar Vikas1Viola Daniele2Crisafi Francesco3Preda Fabrizio4Cerullo Giulio5Polli DarioCNR-IFN and Dipartimento di Fisica, Politecnico di MilanoCNR-IFN and Dipartimento di Fisica, Politecnico di MilanoCNR-IFN and Dipartimento di Fisica, Politecnico di MilanoCNR-IFN and Dipartimento di Fisica, Politecnico di MilanoCNR-IFN and Dipartimento di Fisica, Politecnico di MilanoCNR-IFN and Dipartimento di Fisica, Politecnico di MilanoStimulated Raman scattering spectroscopy enables label-free molecular identification, but its broadband implementation is technically challenging. We experimentally demonstrate a novel approach to multiplex stimulated Raman scattering based on photonic time stretch. A telecom fiber stretches the broadband femtosecond Stokes pulse after the sample to ∼15ns, mapping its spectrum in time. The signal is sampled through a fast oscilloscope, providing single-shot spectra at 80-kHz rate. We demonstrate high sensitivity in detecting the Raman vibrational modes of various samples over the entire high-frequency C-H stretching region. Our results pave the way to high-speed broadband vibrational imaging for materials science and biophotonics.https://www.epj-conferences.org/articles/epjconf/pdf/2019/10/epjconf_up2019_03003.pdf
collection DOAJ
language English
format Article
sources DOAJ
author Saltarelli Francesco
Kumar Vikas
Viola Daniele
Crisafi Francesco
Preda Fabrizio
Cerullo Giulio
Polli Dario
spellingShingle Saltarelli Francesco
Kumar Vikas
Viola Daniele
Crisafi Francesco
Preda Fabrizio
Cerullo Giulio
Polli Dario
Photonic Time-Stretch Spectroscopy for Multiplex Stimulated Raman Scattering
EPJ Web of Conferences
author_facet Saltarelli Francesco
Kumar Vikas
Viola Daniele
Crisafi Francesco
Preda Fabrizio
Cerullo Giulio
Polli Dario
author_sort Saltarelli Francesco
title Photonic Time-Stretch Spectroscopy for Multiplex Stimulated Raman Scattering
title_short Photonic Time-Stretch Spectroscopy for Multiplex Stimulated Raman Scattering
title_full Photonic Time-Stretch Spectroscopy for Multiplex Stimulated Raman Scattering
title_fullStr Photonic Time-Stretch Spectroscopy for Multiplex Stimulated Raman Scattering
title_full_unstemmed Photonic Time-Stretch Spectroscopy for Multiplex Stimulated Raman Scattering
title_sort photonic time-stretch spectroscopy for multiplex stimulated raman scattering
publisher EDP Sciences
series EPJ Web of Conferences
issn 2100-014X
publishDate 2019-01-01
description Stimulated Raman scattering spectroscopy enables label-free molecular identification, but its broadband implementation is technically challenging. We experimentally demonstrate a novel approach to multiplex stimulated Raman scattering based on photonic time stretch. A telecom fiber stretches the broadband femtosecond Stokes pulse after the sample to ∼15ns, mapping its spectrum in time. The signal is sampled through a fast oscilloscope, providing single-shot spectra at 80-kHz rate. We demonstrate high sensitivity in detecting the Raman vibrational modes of various samples over the entire high-frequency C-H stretching region. Our results pave the way to high-speed broadband vibrational imaging for materials science and biophotonics.
url https://www.epj-conferences.org/articles/epjconf/pdf/2019/10/epjconf_up2019_03003.pdf
work_keys_str_mv AT saltarellifrancesco photonictimestretchspectroscopyformultiplexstimulatedramanscattering
AT kumarvikas photonictimestretchspectroscopyformultiplexstimulatedramanscattering
AT violadaniele photonictimestretchspectroscopyformultiplexstimulatedramanscattering
AT crisafifrancesco photonictimestretchspectroscopyformultiplexstimulatedramanscattering
AT predafabrizio photonictimestretchspectroscopyformultiplexstimulatedramanscattering
AT cerullogiulio photonictimestretchspectroscopyformultiplexstimulatedramanscattering
AT pollidario photonictimestretchspectroscopyformultiplexstimulatedramanscattering
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