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Ultrafast Transient Absorption Spectroscopy System
Ultrafast Transient Absorption Spectroscopy System
Ultrafast Transient Absorption Spectroscopy System
Ultrafast Transient Absorption Spectroscopy System
The TA-AUTO and TA-MINI are transient absorption spectrometers designed to probe photo-induced electronic transitions and excited-state dynamics in various materials. 
TA-AUTO: Covers a broad spectral range from ultraviolet (UV) through visible and near-infrared (NIR) to mid-infrared (MIR).
TA-MINI: Covers a broad spectral range from ultraviolet (UV) through visible. 
Supports time resolutions ranging from femtoseconds to microseconds. These systems can be integrated with a microscopy module to achieve
high-spatial-resolution transient absorption spectroscopy.
 
Additionally, these systems can incorporate a high-speed CMOS area camera to enable spatial defect mapping and the
characterization of carrier diffusion and mobility. For high-repetition-rate laser sources, they can be further expanded with high-speed detectors to enhance detection sensitivity, achieving a detection limit as low as ≤10 -5 OD.
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Products Features


  • Multi-mode Multi-range Detection: Equipped with transmission, reflection, and back-excitation modes. Detection spectrum covers UV to NIR bands, suitable for diverse samples including tetracene dimers and CdSe quantum dots, delivering excellent performance across UV-NIR ranges.

  • High Resolution: Temporal resolution ≤1.5×femtosecond laser pulse width; Spatial resolution ≤1μm (microscopic dynamics imaging module). Enables precise capture of transient processes, supporting carrier migration studies in photocatalysis and perovskite solar cells.

  • Automation & Intelligence: Fully automated optical path switching/calibration ensures operational stability. Integrated software for data acquisition/analysis improves experimental efficiency.

  • High Expandability: Modular design allows flexible configuration upgrades.


Specifications


Main


Time-Resolved Micro-Imaging Module

ModeMicro spectroscopy acquisition/wide-field TA imaging/Carrier diffusion  imaging
Spatial resolution≤1 μm
Wavelength range400-800 nm
Carrier migration accuracy100 nm


Nanosecond TA Upgrade Module

ModeSwitchable transmission/Reflection
Spectral Detection Range360-1700 nm
Time window≤ 450 μs
Time Resolution1 ns
Maximum Detection Sensitivity≤ 0.1 mOD
NS-SC LaserSpectral Range350-1800 nm
Pulse Width~800 ps
Repetition Rate2 KHz
Power Stability±1%
Total Average Optical Power>5 mW


Electrical Excitation Module

Maximum Voltage±5 V(±10 V)
Pulse Width6 ns - 999.99 s
Repetition Rate1 μHz - 80 MHz
Electrical Pulse Rise Time (0-5 V)≤5 ns (Default), optional ≤2 ns


Ultrafast Transient Absorption Application Examples


UV Range Data

Sample Experiment

SamplePerovskite Thin Film
Excitation Wavelength
405 nm 
Probe WavelengthUV

1



Visible Range Data

Sample Experiment

SampleNi-TPA
Excitation Wavelength
370 nm
Probe WavelengthVisible

2


NIR Range Data

Sample Experiment

SampleGraphite
Excitation Wavelength
495 nm
Probe WavelengthNIR

3


Micro Transmission TA

Sample Experiment

SampleSingle layer WS2 (substrate: sapphire)
Excitation Wavelength
515 nm
Probe WavelengthVisible

4


Micro Reflection TA

Sample Experiment

SampleMultilayer WS2 (substrate: Si)
Excitation Wavelength
515 nm
Probe WavelengthVisible

5


Wide-field TA Imaging

Sample Experiment

SampleMonolayer WS2 
Excitation Wavelength
515 nm
Probe Wavelength610 nm

6


Near Infrared Imaging

Sample Experiment

SampleWS2 
Excitation Wavelength
515 nm
Probe Wavelength900 nm

7


Carrier Migration Data Diagram

Sample Experiment

SamplePerovskite-type Copper Fluoro-oxytitanate
Excitation Wavelength
650 nm
Probe Wavelength800 nm

8


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