Vernier Flash Photolysis Spectrometer

Vernier Flash Photolysis Spectrometer

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Vernier Flash Photolysis Spectrometer


The Vernier Flash Photolysis Spectrometer is a simple, user-friendly device for demonstrating the fundamental principles of chemical kinetics and photochemistry to undergraduate chemistry students. It measures the absorption and emission changes over time of a photoexcited sample at a single wavelength, which is determined by a filter (600 nm filter included).

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Photochemical reactions are very important in many areas of chemistry with applications including photodynamic therapy and solar energy harvesting. These reactions often proceed quickly and, as a result, require fast reaction techniques to analyze. The Vernier Flash Photolysis Spectrometer is a simple, user-friendly transient absorption spectrometer. It is useful for demonstrating the fundamental principles of these types of fast, photo-catalyzed reactions. Some experiment ideas include kinetics of photochemical reactions such as

  • Excited-state dynamics
  • Triplet-decay analysis
  • Time-resolved phosphorescence
  • Phosphorescence-quenching kinetics
  • Isomerization
  • Reactive free radicals
  • Photocatalysis


  • Spectral coverage: 450–750 nm
  • Temporal resolution: 100 microseconds
  • Spectral Resolution: Determined by the interference filter used (10 nm with the included 600 nm interference filter)
  • Minimum time window: 15 milliseconds

Compatibility Requirements

The Vernier Flash Photolysis Spectrometer is currently for Windows computers only. It connects directly to a computer via USB and does not require a Vernier interface. The software is provided as a free download. You do not need to purchase LabVIEW for this VI to work.

Download Flash Photolysis Spectrometer Software

Installation Instructions

  1. Download the zip file
  2. Extract the zip file.
  3. Open and run the software.



What's Included

  • Vernier Flash Photolysis Spectrometer
  • AC power supply
  • One fluorescence quartz cuvette
  • USB cable
  • Empty filter housing (fits standard size, third party filters: 12.5 mm OD and 9.0 mm ID)
  • 600 nm filter (10 nm FWHM) in filter housing
  • Quick start guide


User Manual

View User Manual

Reference Manual

View Reference Manual – The reference manual contains helpful background information on excited state chemical kinetics, important technical information for operation, and three experiments.


5-year limited warranty

Contact Us

  • Recommended: Online support
  • Email:
  • Toll-free: 1-888-837-6437

Educational use only: Vernier products are designed for educational use. They are not appropriate for industrial, medical, or commercial applications.

* AP and Advanced Placement Program are registered trademarks of the College Entrance Examination Board, which was not involved in the production of and does not endorse this product.

** The IB Diploma Program is an official program of the International Baccalaureate Organization (IBO) which authorizes schools to offer it. The material available here has been developed independently of the IBO and is not endorsed by it.