Ultrafast Transient Absorption Spectroscopy System
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Ultrafast Transient Absorption Spectroscopy System

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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
Specifications
Ultrafast Transient Absorption Application Examples
Publication
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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

Mode Micro spectroscopy acquisition/wide-field TA imaging/Carrier diffusion  imaging
Spatial resolution ≤1 μm
Wavelength range 400-800 nm
Carrier migration accuracy 100 nm


Nanosecond TA Upgrade Module

Mode Switchable transmission/Reflection
Spectral Detection Range 360-1700 nm
Time window ≤ 450 μs
Time Resolution 1 ns
Maximum Detection Sensitivity ≤ 0.1 mOD
NS-SC Laser Spectral Range 350-1800 nm
Pulse Width ~800 ps
Repetition Rate 2 KHz
Power Stability ±1%
Total Average Optical Power >5 mW


Electrical Excitation Module

Maximum Voltage ±5 V（±10 V)
Pulse Width 6 ns - 999.99 s
Repetition Rate 1 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

Sample Perovskite Thin Film
Excitation Wavelength
 405 nm 
Probe Wavelength UV

1



Visible Range Data

Sample Experiment

Sample Ni-TPA
Excitation Wavelength
 370 nm
Probe Wavelength Visible

2


NIR Range Data

Sample Experiment

Sample Graphite
Excitation Wavelength
 495 nm
Probe Wavelength NIR

3


Micro Transmission TA

Sample Experiment

Sample Single layer WS2 (substrate: sapphire)
Excitation Wavelength
 515 nm
Probe Wavelength Visible

4


Micro Reflection TA

Sample Experiment

Sample Multilayer WS2 (substrate: Si)
Excitation Wavelength
 515 nm
Probe Wavelength Visible

5


Wide-field TA Imaging

Sample Experiment

Sample Monolayer WS2 
Excitation Wavelength
 515 nm
Probe Wavelength 610 nm

6


Near Infrared Imaging

Sample Experiment

Sample WS2 
Excitation Wavelength
 515 nm
Probe Wavelength 900 nm

7


Carrier Migration Data Diagram

Sample Experiment

Sample Perovskite-type Copper Fluoro-oxytitanate
Excitation Wavelength
 650 nm
Probe Wavelength 800 nm

8


Publication
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