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Spectroscopy Solutions

Raman Explorer™ Spectrograph

Headwall Photonics

Raman Explorer

Complementing Andor's range of Imaging spectrographs we can now offer our customers a new solution offering spectral Imaging for more demanding Raman applications, developed by Headwall Photonics. The new agreement will allow us to offer the Raman Explorer™ with a choice of Andor detectors.

The Raman Explorer™ family of multi-channel, multi-spectrum spectrographs is based on Headwall’s patented, aberration-corrected, retro-reflective concentric design – an innovative, high reciprocal dispersion instrument which is optimized for high signal throughput of weak Raman spectra with reduced measurement integration time. The unique design supports the ability to disperse multiple spectral ranges over a single CCD with superior resolution, photometric accuracy, and spectral bandwidth.

Features and Benefits

High Signal Throughput

  • 100% increase in signal collection versus other straight line entrance aperture spectrometers
  • No image curvature
  • f/2.4
  • Original high efficiency imaging grating

High Dynamic Range

No stray light “noise” commonly caused by transmissive optics, replicated diffraction gratings or multiple diffracted orders

High Spectral Resolution

  • < 4 cm-1 resolution with 785 nm excitation
  • Superb resolution over the entire focal plane

High Spatial Resolution

  • Superior 1:1 straight slit imaging
  • Maximum signal collection
  • Maximum multi-channel input capacity

The Raman Explorer™ Range

Raman Explorer™ Model Number532532658632.8632.8785785
ParameterUnitsCh 1Ch 1Ch 2Ch 1Ch 2Ch 1Ch 2
Laser stimulation λnm52532658632.8632.8785785
Minimum Stokes Shiftcm-1300300791002982-982256
Maximum Stokes Shiftcm-13671367124083072466724193998
Avg. Recip. Linear Disp.cm-1/pixel1.871.871.31.571.131.230.85
Nominal Spectral Resolution cm-15.65.63.94.73.43.72.6

Nominal values. Resolution guidelines based upon 13.5 micron square pixels, and use of a 12 micron wide entrance image.