RAMOS RS120. Dual-channel automated Raman spectrometer

RAMOS RS120 compact Raman dual-channel spectrometer is a standalone research instrument designed to perform spectral measurements with capabilities at the level of high-end systems. 

RAMOS RS120 spectrometer has a rigid, moving parts free design that does not require adjustments, has both high sensitivity and high spectral resolution, and can be equipped with one or two single-mode lasers 488/633 nm or 532/785 nm simultaneously. 

RAMOS RS120 can be equipped with Raman fiber optic probes.

RAMOS RS120 with fiber

RAMOS RS120 without fibers

Wide range of capabilities, high reliability, and compact size allow RAMOS RS120 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  
  • One or two integrated single-mode lasers
  • Fully automated change of lasers/gratings without additional system alignment
  • No moving parts in the spectrometer except laser shutters
  • Two non-switching spectral gratings (one for each laser)
  • 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
  • Ultra-Low Frequency Raman (THz-Raman) from 10 cm-1
  • 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).


Laser 532 nm *

Laser 785 nm *

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

10 – 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


140 x 235 x 56 mm


2.5 kg with two lasers, 2.2 kg with one laser

* – RAMOS RS120 spectrometer can be equipped with either built-in 532 nm or 785 nm laser or both lasers simultaneously. 488/633 nm lasers 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...

Related Information