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IR-Transient absorption system

equipment explanation
Model Helios-IR 외 3
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 86291
inquiry Dong ki Cho
010-6788-7217
cdk0726@skku.edu
Reservation

Notice

The equipment is operated with sub-25 fs ultrafast laser system. This equipment should be used with the superuser.

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


TA technique is basically based on the pump-probe method, and spectrally- and temporally-resolved carrier dynamics can be observed.
IR TA technique can be applied to study electronic band structure of semiconductors, charge transfer process of hybrid structrue, and infrared spectroscopy.
Unit content
- Exciation wavelength : 800 nm (fixed)
- Probe spectral range : 2-13 μm
- Spectral resolution : 50 g/6000 nm-15.3 nm, 150 g/4000 nm-5.1 nm
- Temporal resolution : 14 fs (time window up to 8 ns)
- Detector : MCT detector

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