RAMOS RU120. Basic automated Raman spectrometer

RAMOS RU120 basic compact Raman spectrometer is a standalone research instrument designed to perform spectral measurements with capabilities at the level of high-end systems.

Spectrometer RAMOS RU120 has a rigid, moving parts free design that does not require adjustments, has both high sensitivity and high spectral resolution, and equipped with a builtin single-mode laser. 

RAMOS RU120 can be equipped with Raman fiber optic probes.

RAMOS RU120 with fiber
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A wide range of capabilities, high reliability, and compact size allow RAMOS RU120 to be used for a wide range of scientific and industrial applications.

The objects for complex research can be semiconductors, minerals, polymers, pharmaceutical and biological substances, coatings, and other materials.


Main features

  • Research level Raman spectrometer with advanced measurement techniques  
  • Integrated single-mode laser
  • No moving parts in the spectrometer except the laser shutter
  • Compact
  • Automatic adjustment of laser radiation power level
  • Ability to connect fiber optic Raman probes
  • Wide dynamic range and extremely high sensitivity of innovative sCMOS detector
  • Edge or Notch Filters for Stokes and Anti-Stokes Spectroscopy
  • Advanced control software allows performing various types of measurements: areas, lines, sections, profiles
  • Library of over 10,000 spectra
  • Integration of third-party spectral databases
  • The most affordable price in the Research Class segment of instruments

The characteristic spectra of aspirin and paracetamol
The characteristic spectra of aspirin and paracetamol.

The Raman spectrum of paracetamol has characteristic peaks near 1650 cm-1 (C = O stretching vibration) and 1612 cm-1 (N-H stretching vibration).

The Raman spectrum of aspirin has characteristic bands of 1606 cm-1 (C-C stretching vibration) and 1622 cm-1 (C-O vibration of carboxyl group).


Configuration with 532 nm laser *

Configuration with 785 nm laser *

Laser power

50 mW

130 mW

Laser attenuation

1-100% with 1% step

Focal length

120 mm

Entrance aperture

40 µm


1200 l/mm

1800 l/mm

600 l/mm

1200 l/mm

Spectral resolution

~7 cm-1

~4 cm-1

~7 cm-1

~3 cm-1

Spectral range

          -   Edge/Notch filter

70 – 4 700 cm-1

70 – 3 155 cm-1

50 – 3 200 cm-1

50 – 2 140 cm-1

          -   Bragg filter

10 – 4 700 cm-1

70 – 3 155 cm-1





Detector type


Pixel number

4 096

Pixel size

7 x 200 µm

Readout noise

16 e rms

Dark current

400 e-/pixel/s

Dynamic range

5 000:1

Peak sensitivity wavelength

700 nm

Integration time

1 ms – 60 s

PC connection interface

USB 2.0

Power supply

100 – 240 VAC, 50 –60 Hz


100 x 235 x 56 mm


2.0 kg

* – Other wavelengths are available on request

Application fields


Visualization of cellular components with minimum perturbation  


Characterization of minerals, detection of components distribution and their phase transitions  

Material science

Investigation of various materials with high spatial resolution - superconductors, polymers, coatings, composites, carbon nanotubes, graphene, etc  


Identification and distribution of chemical components and molecular conformers in various drugs


A promising technique for researching the composition of skincare products as well as their penetration ability  

Heritage and Art, Gemology

Determination of pigments and binding agents used in painting

Spectroscopic analysis of archaeological samples (ceramics, glass, etc.) gives information on their origins and history

Rapid identification of precious and semi-precious stones, e.g. identification of natural and synthetic diamonds  


Determination of polymers microstructure and composition, including qualitative analysis of copolymers, determination of additives and fillers (plasticizers, pigments, colorants, etc.)

Kinetics research: polymerization, destruction processes (chemical or thermal)  


Identification of unknown substances, different types of fibers, glasses, paints, explosive materials, inks, narcotic and toxic substances, proof of authenticity of documents     

and many more...

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