Step-scan near-infrared Fourier-transform Raman spectroscopy with 100 picosecond laser pulses |
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| Institution: | 1. Dept. of Physics, Faculty of Sciences, UAE, Tetouan 93020, Morocco;2. Electronics & Microwaves Group, Faculty of Sciences, UAE, Tetouan, Morocco;3. Dept. of Teorìa de la Señal y comunicaciónes, University of Vigo, Pontevedra, Vigo, Spain;4. Millimeter and Terahertz Waves Lab. UN, Pamplona, Spain;1. Department of Applied Physics, University College of Science & Technology, University of Calcutta, 92, APC Road, Kolkata 700009, India;2. Department of Applied Electronics & Instrumentation, College of Engineering & Management, Kolaghat, KTPP Township, Midnapur (East) 721171, India |
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| Abstract: | Time-resolved Fourier-transform Raman scattering with picosecond excitation is reported for the first time. The resonance Raman spectrum of 9,10-diphenylanthracene in its excited single state was obtained by Raman excitation at 1064 nm with 100 ps pulses, following photoexcitation at 355 nm. The implementation and characterization of time-resolved FT-Raman spectroscopy with a step-scan interferometer is discussed. FT-Raman spectra generated with continuous and mode-locked beams in the continuous-scan mode of the interferometer are compared with step-scan FT-Raman spectra generated with 2 kHz pulses. |
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