التفاصيل البيبلوغرافية
| العنوان: |
Photonic Time-Stretch Spectroscopy for Multiplex Stimulated Raman Scattering. |
| المؤلفون: |
Saltarelli, Francesco, Kumar, Vikas, Viola, Daniele, Crisafi, Francesco, Preda, Fabrizio, Cerullo, Giulio, Polli, Dario, Cerullo, G., Ogilvie, J., Kärtner, F., Khalil, M., Li, R. |
| المصدر: |
EPJ Web of Conferences; 2019, Vol. 205, pN.PAG-N.PAG, 3p |
| مصطلحات موضوعية: |
FEMTOSECOND pulses, RAMAN scattering, PHOTONS, OSCILLOSCOPES, VIBRATIONAL spectra |
| مستخلص: |
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. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
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