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Raman Microspectroscopy

The SMS offers high performance Raman microspectroscopy with specifications comparable to high-end benchtop systems, but with unrivaled flexibility.

  • Unique design with sharp filter cut-on offers access to low wave number modes (better than 80 cm-1 guaranteed)
  • Advanced functionality, such as mapping

Raman spectra of sulfur (red) measured on SMS system.

Raman characterization of a monolayer MoS2 using 532 nm laser line (objective = 100x, spatial resolution = 0.3 μm). (a) 2D image of Raman map of A1g peak intensity. (b) A Raman spectrum showing sharp and intense E1 and A1g peaks of MoS2 sample. (c) Optical image of the MoS2 flake. (d) 3D image of Raman map of A1g peak intensity.

Raman Specifications

Spectrometer and Detectors
Spectrometers MicroHRiHR320iHR550
Excitation Lasers 532 nm, 633 nm, 785 nm
Spectral Range (cm-1) – Free space 80 – 9500 (532 nm), 80 – 6500 (633 nm), 80 – 3400 (785 nm)
Spectral Range (cm-1) – Fiber 150 – 9500 (532 nm), 150 – 6500 (633 nm), 150 – 3400 (785 nm)
Recommended Gratings 1800 g/mm, 1200 g/mm, 600 g/mm
Spectral Resolution1 (cm-1/ pixel)405 nm5.122.341.37
532 nm2.531.220.73
633 nm1.540.780.48
785 nm0.700.400.26
Microscope
Microscope ObjectivesMagnification10X50X100X
 Spot Size (fiber-coupled)< 50 μm< 12 μm< 6 μm
 Spot Size (free space-coupled)< 10 μm< 5 μm< 2 μm
Sample StageXYZ (Manual and motorized options available) – 75 x 50 mm; 100 x 100 mm; 150 x 150 mm; 300 x 300 mm
Vision CameraSoftware controlled vision camera included

1 For 1800 g/mm grating and 26 μm pixel CCD

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