What is TRMPS?
TRMPS is a femtosecond to millisecond pump-probe-probe-probe… spectrometer.
This technique is made available by synchronizing two of Ultra's regenerative amplifiers operating at different repetition rates. It can be performed using the 10 kHz (probe) and 1 kHz (pump) amplifiers or on LIFEtime using the 100 kHz Pharos lasers; with the latter option the pump-repetition rate can be varied.
TRMPS uses a lower repetition rate (UV to NIR wavelength) tuneable ultrafast light pulse to trigger (pump) photochemical or physical changes in a sample and then probes the progress of molecular reaction using the higher repetition rate probe laser, creating a pump, probe, probe, probe ... pulse scheme.
The technique can provide essential insights in the design of molecular devices, the propagation of disease (including cancer and Alzheimer’s), cell signalling pathways and DNA damage-repair mechanisms.
Schematic of the Ultra TRMPS laser triggering arrangement when using the 10 kHz and 1 kHz regenerative amplifiers.