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Vibrational energy redistribution and vibrational dynamics of methanol mixed with Rhodamine 101 dye |
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| Authors: | Xiaosong Liu Wei Zhang Weilong Liu Yunfei Song Zhuo Wang |
| Institution: | 1. International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, People’s Republic of China;2. Tianjin Institute of Power Sources, Tianjin, People’s Republic of China;3. Department of Physics, Harbin Institute of Technology, Harbin, People’s Republic of China |
| Abstract: | Vibrational energy transfer that occurs after photoexcitation can be tracked in the first several femtoseconds by ultrafast time- and frequency-resolved CARS (coherent anti-Stokes Raman scattering) spectroscopy. Vibrational energy transfer from high-frequency modes to lower ones through chemical bond of pure methanol and methanol/Rhodamine 101 (Rh101) solution is detected. Through comparison and analysis of the experimental results, it is found that surrounding molecules have a significant influence on vibrational energy transfer and vibrational couplings among relevant modes. |
| Keywords: | Vibrational energy transfer CARS vibrational couplings intermolecular interaction |