Ultrafast Transient Absorption Spectroscopy System
Ultrafast Transient Absorption Spectroscopy

System Introduction

The transient absorption spectrometer uses the pump-probe technique to achieve time-resolved functions at different scales. A pulsed laser beam is split and one beam is used as a pump source to excite the sample and one beam is used as a probe to detect the absorption source by generating white light through a nonlinear optical crystal. In the ultrafast transient absorption spectroscopy system, the time difference (delay time) between the two is achieved by adjusting the optical delay stage. Finally, the transient spectrum of the sample and its kinetic information are obtained by a high-speed COMS spectrometer and a data acquisition and analysis system.

Technical Advantages - Customization

Ultrafast Transient Absorption Microzone Expansion Module                                                              

Ultrafast transient absorption mid-infrared expansion module

The module is equipped with a DMCT liquid nitrogen-cooled single-point detector and a mid-infrared monochromator. The spectral detection range is up to: 2μm-14μm, single point kinetics and spectral scan can be acquired to obtain transient spectra, and can be integrated with ultrafast transient absorption spectroscopy systems.

Data Acquisition Software Data Analysis Software

The system is equipped with professional data acquisition software, which can complete data acquisition and parameter setting of various modes of samples. The system is equipped with professional data analysis software, which can complete a variety of data observation and analysis of samples.

Implement 2D and 3D data UC Egyptian mode, kinetic curve real-time observation. Kinetic curve fitting, time zero correction, homogenization processing and many other powerful functions.

Custom functions can be added according to user requirements                                                                                                             Custom functions can be added according to user requirements

Detection mode. Transmissive and reflective modes can be switched

Spectral detection system.Spectrometer with high-speed CMOS line array sensor, spectral range in one acquisition (without scanning monochromator)

Data acquisition frequency.Typical value 500Hz-5KHz

Spectral detection range.

Visible light: 400-800nm; UV expansion: 340-700nm; NIR: 850-1600nm (based on 800nm femtosecond laser)

Visible light: 480-950nm; UV expansion: 380-750nm; NIR: 900-1650nm (based on 1030nm femtosecond laser)

Time window.8ns

Time accuracy.3fs

Instrument response function (IRF) time.Typical values 50fs-200fs (1.5x laser pulse width)

Detection sensitivity:<0.1 mOD

Single point/single spectrum acquisition time.<1.5 seconds

Data acquisition software system.

2D/3D data acquisition mode, realizing real-time observation and analysis of the collected data.

Professional Data Analysis Software: The

Kinetic curve fitting, time zero correction, homogenization processing and many other powerful functions. (Custom functions can be added according to user requirements)

Supporting accessories.

2 sets of transient cuvette, 1 set of sample jig (both solid film and solution samples)

Miniature magnetic stirrer for transient cuvette (optional)

Fully automatic anti-sample light damage two-dimensional motorized mobile table and supporting software (optional)