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Oct 1, 2018

picoTAS


Picosecond Transient Absorption Spectroscopy System

Category: News-EN
Posted by: administrator

picoTAS can measure wide time range including "Gap Time Region" (1–20 nanosecond) in conventional transient absorption methods by using newly developed RIPT method (Randomly Interleaved Pulse Train method).
In addition, picoTAS has a capability of eliminating the influence of fluorescence.
Therefore, picoTAS can measure many photo-induced reactions which never have been observed, and new research opportunities will be opened up by exploring those phenomena.

 

picoTAS graph 1
picoTAS graph 2

Features

  • Complete coverage of gap time region (1 ns–20 ns)
  • Broadband wavelength range from VIS to NIR
  • Transient absorption measurement from 100 picosecond to millisecond
  • Removal of fluorescence signal
  • Compact size, Optical bench is not required (-ns model)

Applications

  • Observation of Transient Absorption Spectra of Excited Singlet/Triplet State
  • Measurement of Intersystem Crossing (ISC) Rate
  • Research of Electron Transfer, Charge Separation/Recombination Dynamics
  • Observation of Intermolecular Reaction, Excimer Generation etc.
  • Analysis of Dynamics of Artificial Photosynthesis, Solar Energy Cell, Organic EL
Specifications
ModelspicoTAS-nspicoTAS-ps
Method RIPT method (Randomly Interleaved Pulse Train method)
Time Resolution (10%–90% rise time) <400 ps <100 ps
Delay Time resolution 10 ps, 20 ps, 50 ps, 100 ps, 200 ps, 500 ps, 1 ns, 2 ns, 5 ns, 10 ns, 20 ns
Full scale 100 ns–2 ms
Wavelength Range 410–1600 nm
Automatic Control wavelength scan, light intensity adjustment, shutter control
Sample Holder solution (optical path length is 2 mm), thin film
Pump Light SourceSource passive Q-SW microchip laser picosecond mode-locked laser
Wavelength 532 nm and/or 355 nm 532 nm and/or 355 nm and/or 266 nm
Pulse Width <350 ps <25 ps
Pulse Energy >20 µJ >80 µJ
Repetition Rate 100–1000 Hz (variable) 1000 Hz
Probe Light SourceSource picosecond Supercontinuum Light Source
Pulse Width <50–100 ps (dependent on wavelength)
Repetition Rate 20 MHz ± 5%
PC & SoftwareOS Windows® 7/10
Function Automatic reconstruction of transient absorption temporal profile, curve fitting (nonlinear least square method), data storage in text format
Installation Environment no optical bench required on optical bench

Flyer Brochure Brochure in Chinese

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