Modular TeraHertz Raman Spectrometer

Modular TeraHertz Raman Spectrometer

Affordable ultra-low frequency Raman spectrometer down to 10 cm-1

HORIBA’s modular terahertz modular Raman spectrometer extends the spectral range of a measurement to < 10 cm-1. Consisting of an Ondax SureBlock™ module fiber coupled to HORIBA’s iHR320 imaging spectrometer, this custom system provides an affordable option for macro-Raman measurements close to the laser line. Below are Stokes and anti-Stokes spectra of elemental sulfur recorded with this system.

Segment: Scientific
Produktionsfirma: HORIBA Scientific

HORIBA’s new THz-Raman® Spectroscopy Module extends the range of traditional Raman spectroscopy into the terahertz/low-frequency regime, exploring the same range of energy transitions as terahertz spectroscopy – without limiting the ability to measure the fingerprint region. This region reveals a new “Structural Fingerprint” to complement the traditional “Chemical Fingerprint” of Raman, enabling simultaneous analysis of both molecular structure and chemical composition in one instrument for advanced materials characterization.

Clear real-time differentiation of structural attributes of the material enables clear identification and analysis of polymorphs, raw material sources, defects and contamination, crystal formation, phase monitoring and synthesis methods.

In-situ, real-time measurement of both composition and structural analysis eliminates the need for multiple samples and instruments, lowering capital, training and maintenance costs.

  • Simultaneous Stokes/anti-Stokes signals
  • High S/N ratio
  • Fast, reliable measurements
  • Compact
  • Easy-to-use
  • Flexible sample handling
  • Fiber coupled output


No one has more experience in designing and manufacturing high quality Raman systems than HORIBA Scientific, from modular Raman microscopes to triple Raman spectrometers.  The THz Raman module extends HORIBA’s Raman offerings to a bench-top ultra-low frequency Raman spectrometer for macroscopic measurements.  Using superior optical components and design, the THz-Raman module provides an easy‑to‑use, yet highly sensitive instrument for both routine and complex Raman measurements.



A range of detectors are available for integrating into your own Raman experiment, with different chip architectures and various degrees of cooling to suit all requirements. Whether the application is for rapid measurements or very weak Raman scattering samples, there is a detector to match.

  • High sensitivity CCD detectors for UV-VIS
  • Linear InGaAs arrays for near-IR response
  • Deep cooling for low dark current (thermoelectric or LN2 cooling)


The THz Raman module is available with three wavelength excitation sources; 532 nm (25 mW to 250 mW), 785 nm (60 mW), and 850 nm (60 mW).


A range of spectrometers are available for integrating into your own Raman experiment, with focal lengths and resolutions to suit all requirements – ranging from 140 mm to 550 mm and above.  Whether the application is for routine screening, fluorescence and PL mapping, or detailed high resolution Raman research, the spectrometer to match is available.

  • High precision spectrometers with low stray light levels  and options for high spectral resolution
  • Gratings and sampling optics optimized for Raman
  • Upgradeable spectrometer platform ready to expand to fluorescence, PL, and optical spectroscopy


LabSpec 6 Spectroscopy Software

The LabSpec6 spectral software suite used on all the HORIBA Jobin Yvon analytical and research Raman spectrometer systems is now also available for modular Raman systems. It has been designed and written as a dedicated Raman spectroscopy package and offers many powerful capabilities not found in a basic spectroscopy software.


Vial/Tablet Sample Holder

The vial/tablet sample holder incorporates an adjustable steering mirror, interchangeable focusing lens, and safety shutter.

Steerable Collimated Beam Mount

The steerable collimated beam mount is provided for customers who need access to the confocal collimate beam. It allows for projection and steering of the collimated output beam with precision alignment and interchangeable focusing optics, for applications requiring long-range collection paths.

Adjustable Probe Tip Mount

The adjustable probe tip mount allows for alignment of the tip and tilt of a compatible 0.5” probe collection tip for immersion or contact measurements.

Fixed SwageLok Probe Tip Mount

The fixed SwageLok probe tip mount uses a SwageLok type fitting to couple a compatible probe to the THz Raman module in a fixed geometry.


Modular Raman Microscope Spectrometers

Laser Wavelength

532 nm

785 nm

850 nm

Spectral Range (cm-1)

100 – 7700

100 – 3400*

100 – 3400*

Resolution, 1800 gr/mm (cm-1/pixel)









Recommended Gratings

1800 gr/mm 1200 gr/mm 600 gr/mm

1800 gr/mm 1200 gr/mm 600 gr/mm

1800 gr/mm 1200 gr/mm 600 gr/mm


Length (mm)

290 mm

Width (mm)

240 mm

Height (mm)

90 mm

Weight (lbs)

< 15 lbs

*With 1200g/mm grating



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