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UV-VIS Transient absorption system (Option for regenerate amplifier laser sys.)

equipment explanation
Model HE-VIS 외
Operating time SUN(00:00~24:00)
MON(00:00~24:00)
TUE(00:00~24:00)
WED(00:00~24:00)
THU(00:00~24:00)
FRI(00:00~24:00)
SAT(00:00~24:00)
Location 86193
inquiry Kim Deok Soo
010-2176-7923
ykkddss@skku.edu
Reservation

Notice

 

Available time // 09:00~24:00 on every Mon ~ Fri

 

Notice // This system is combined with Regenerated amplifier laser system

 

Current Status // Now on operation.

UV-VIS transient absorption(TA) system is a powerful method to probe the electronic and structural changes of ultrashort-lived excited states of materials, and it is designed to work with an regenerate amplifier femtosecond laser system.


TA technique is basically based on the pump-probe method, and probe is used to monitor absorption changes. In our system, we use white light continuum for the probe beam, so both spectrally- and temporally-resolved carrier dynamics can be observed.
TA technique can be applied to study photo-induced energy transfer in a solar cell, material properties of metal nanoparticles, photo-chemistry of quantum dots, and non-linear absorption spectroscopy.
Unit content
- Excitation wavelength : 250-13000 nm (tunable)
- Probe spectral range : 350-1600 nm
- Spectral resolution : VIS-1.5 nm, NIR-3.5 nm
- Temporal resolution : 7 fs (time window up to 8 ns)
- Detector : CMOS and InGaAs sensor with fiber coupled multichannel high speed spectrometers(kHz scan rates)

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