Time-resolved absorption spectrum analysis system

Nanosecond system

The time-resolved absorption spectrum analysis system is a device to perform transient absorption spectrum measurements in extremely short time. This system enables to analyze the formation and decay process of a reactive intermediate in a photoreaction in solutions, solids, membranes, etc., are possible. By using the streak camera as the detector and performing multiple-wavelengths time-resolved measurements with a single shot, time-resolved absorption spectra and transient absorption time-resolved spectral images can be measured simultaneously, and you can obtain images of irreversible phenomenon. The newly developed High dynamic range streak camera C13410 is employed as the detector. Minute transient absorption changes can also be measured in a high dynamic range with high S/N.

《Nanosecond system》Time resolution: 7 ns, Measurement time range: 20 ns to 1 ms.

Features

  • Measurements with the smallest optical density (OD) of 0.005 (for single shot, OD value is 0.02 or less)
  • Simultaneous measurements of multiple wavelengths using a single shot
  • High time resolution
  • Automatic measurements with computer control

Measurement example

Measurement of transient absorption time-resolved spectrum

Time-resolved absorption spectrum measurement example

 

Time-resolved transient absorption spectral streak image of the triplet-triplet absorption of anthracene in supercritical carbon dioxide (40 °C, 10.9 MPa)

 

Data courtesy of :

National Institute of Advanced Industrial Science and Technology

Supercritical Fluid Research Center (Sendai City, Japan)

Researcher:

Dr. Takafumi Aizawa

Time-resolved absorption spectrum measurement example

Time-resolved absorption spectrum measurement example

Specifications

System name Nanosecond Q-SW YAG laser
Temporal resolution <7 ns
Measurement time range 20 ns to 1 ms
White light source Xe lamp 150 W/CW
Measurement OD value 0.005 (for single shot, 0.02 or less)
Simultaneous observation wavelength width (W) and wavelength resolution (Δλ) 100 gr/mm: W=510 nm Δλ <3.0 nm
150 gr/mm: W=340 nm Δλ <2.0 nm
300 gr/mm: W=170 nm Δλ <1.0 nm
600 gr/mm: W=85 nm Δλ <0.5 nm
Measurement wavelength range 250 nm to 750 nm
Number of channels Time axis: 1016 ch
Wavelength axis: 1344 ch

Dimensions

C13410-01A 外形尺寸图

c11119-04 外形尺寸图

C13440-20CU 相机头外形尺寸图

C13406-01 外形尺寸图

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