Time-Resolved Impulsive Stimulated Raman Spectroscopy with Synchronized Triple Mode-Locked Lasers

2020 ◽  
Vol 11 (8) ◽  
pp. 2864-2869 ◽  
Author(s):  
JunWoo Kim ◽  
Tai Hyun Yoon ◽  
Minhaeng Cho
Keyword(s):  
Raman Spectroscopy ◽  
Time Resolved ◽  
Mode Locked Lasers ◽  
Triple Mode ◽  
Stimulated Raman

scholarly journals Femtosecond Time-Resolved Stimulated Raman Spectroscopy of the S2(1Bu+) Excited State of β-Carotene

2004 ◽  
Vol 108 (28) ◽  
pp. 5921-5925 ◽  
Author(s):  
Philipp Kukura ◽  
David W. McCamant ◽  
Richard A. Mathies
Keyword(s):  
Raman Spectroscopy ◽  
Excited State ◽  
Time Resolved ◽  
Β Carotene ◽  
Stimulated Raman

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

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Dong-gu Kang ◽  
Kyung Chul Woo ◽  
Do Hyung Kang ◽  
Chanho Park ◽  
Sang Kyu Kim
Keyword(s):  
Raman Spectroscopy ◽  
Spectral Resolution ◽  
Diffraction Method ◽  
High Spectral Resolution ◽  
Double Pass ◽  
Time Resolved ◽  
Order Diffraction ◽  
Pump Laser Pulse ◽  
Raman Pump ◽  
Stimulated Raman

AbstractProlongation 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.

Vibrational relaxation dynamics of β-carotene and its derivatives with substituents on terminal rings in electronically excited states as studied by femtosecond time-resolved stimulated Raman spectroscopy in the near-IR region

2018 ◽  
Vol 20 (5) ◽  
pp. 3320-3327 ◽  
Author(s):  
Tomohisa Takaya ◽  
Masato Anan ◽  
Koichi Iwata
Keyword(s):  
Raman Spectroscopy ◽  
Excited States ◽  
Vibrational Relaxation ◽  
Relaxation Dynamics ◽  
Time Resolved ◽  
Near Ir ◽  
Electronically Excited ◽  
Carbonyl Substitution ◽  
Β Carotene ◽  
Stimulated Raman

Time-resolved near-IR stimulated Raman spectroscopy indicates acceleration of vibrational relaxation in carotenoids by carbonyl substitution on their peripheral rings.

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