The automated siro-band TA(Transient Absorption) spectrometer HELIOS Fire from Ultrafast Systems is designed for femtosecond transient absorption measurements. It uses apump-probe excitation method to study the dynamics of photoinduced processes.
HELIOS Fire is designed to work with femtosecond Ti:sapphire or ytterbium lasers. Thanks to its optimized optical design, it achieves increased sensitivity and is also compatible with nJ pump laser pulses.
- Increased sensitivity - also possible with nJ laser pulses
- Compatible with femtosecond lasers with a repetition rate of 10 Hz - 1000 kHz
- High-speed optical delay path
- Patentedbeam alignment system
- Modular design (optical bench + delay path + electronics and detector box)
- Intuitive software for instrument control and measurement data analysis
- Broad-spectrum probing (max. 270 - 2400 nm with Ti:sapphire lasers; max. 350 - 2400 nm with ytterbium lasers)
- Continuous monitoring of the fluctuation of the probe beam intensity using a reference arm
- Time resolution determined by the width of the laser pulses used, typically ~150 fs
- High-speed multichannel detectors (fiber spectrographs with CMOS, CCD or InGaAs sensor)
- 8 ns time window
- Separate box for all electronics and detectors
- Option to extend the system up to microsecond transient absorption(EOS)
