Thermalization of vibrational excess energy in liquid chloroform

摘要: Abstract The thermalization processes of well defined excess energy in liquid chloroform were studied on a wide range time scales. Starting with nearly 10% vibrational population the CH stretching vibration created by intense picosecond infrared pulses, resolved spontaneous Raman scattering experiments performed and analyzed yielding equilibration manifold within less than nanosecond. following slower investigated monitoring dependence thermal lensing excitation volume. volume expansion (bubble formation included) was found to take several ten μs. As slowest process heat conduction revealing typical constant few milliseconds is observed.