Time-gated Raman Spectroscopy

Timegated® Raman technology offers several advantages over conventional Raman spectrometers and opens up enormous potential for the use of this new technology in different application areas and material classes like:

  • Solids
  • Liquids
  • Slurries
  • Gels

Timegated® Raman provides real fluorescence suppression capabilities. It is also much less sensitive to ambient light and thermal emission interference.

How does Time-gating work:

The picosecond range laser excitation source and a time-gated single photon counting array detector create a totally new type of spectrometer which is able to acquire Raman spectra with real fluorescence suppression. The system rejects the fluorescence interference (which has a longer average delay) while capturing the instantaneous Raman scattering signal. It also enables the acquisition of time-resolved fluorescence spectra by sequentially sampling the emission pulses at different temporal positions. This approach simultaneously opens two windows for material characterization and provides valuable new information in several different application fields.

Summary of the advantages of this fascinating new technique:

  • Real fluorescence suppression
  • Time-resolved fluorescence information
  • Non-destructive, non-contact, label-free, fast and easy to use measurement technique
  • Thermal and ambient light interference suppression

World’s first commercial time-resolved Raman spectrometer

PicoRaman is a commercial Raman spectrometer capable of doing time-resolved measurements. Raman spectroscopy is a very powerful technique

  • Intrinsically high molecular specificity
  • Minimal or no sample pre-treatment
  • Measure aqueous samples
  • Flexibility of sampling configurations
  • Suitability for automation.
  • Non-destructive, non-contact, label-free
  • Fast and easy to use measurement technique.

Time-gating increases the robustness and reliability of Raman measurements even further by enabling true fluorescence rejection.

Effective fluorescence rejection with time-resolved Raman technology:

Fluorescence emission is seen as the main challenge in Raman spectroscopy. PicoRaman has sub-nanosecond pulsed excitation and a time-resolved single-photon counting detector, enabling effective and real fluorescence rejection making both quantitative and qualitative analyses more accurate and reliable. Spectral analysis becomes more specific and precise as fluorescence is no longer a limitation.

Product details

Contact us

Physical Electronics GmbH
Salzstraße 8
85622 Feldkirchen near Munich
Germany

Telefon: +49 89 96275 0
E-Mail: eurosales@phi-europe.com

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