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THz-Raman® Spectroscopy Systems

Coherent’s patented THz-Raman Spectroscopy Systems extend the range of traditional Raman spectroscopy into the terahertz/low-wave number, 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.

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THZ-Raman Spectroscopy 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. Real-time, simultaneous measurement of both composition and structural analysis eliminates the need for multiple samples and instruments, lowering capital, training, and maintenance costs.

The THz-Raman spectral region covers both Stokes and anti-Stokes signals from ±5 cm-1to 200 cm-1, (or 150 GHz to 6 THz), which contain important structural information about the molecule or crystal lattice. 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.

Parameter Units Specification
Wavelength nm 532 785/808 976/1064
Power at sample port (min) mW 50 to 250* 300 300
* Specify power level at time of order
Spectrometer*: Fixed Grating Spectrometer Tunable Grating Spectrometer
Spectral Range (typical) -200cm-1 to +1800cm-1 0-1100 nm (w/Si Detector)
Spectral Resolution 2.5cm-1 to 5cm-1 1.25cm-1 or greater
Computer Interface USB USB

Applications

Application
• Polymorph Identification
• Crystallization Monitoring
• Process Analytical Test
• Polymer Analysis
• Transmission Raman
• Explosives & Drug Detection
• 2D Nanomaterials
• Photovoltaic Materials

Related Materials

Case Studies

Documents

Coherent

THz-Raman – Accessing molecular structure with Raman spectroscopy for enhanced chemical identification, analysis and monitoring

Case Studies

Brochures

Ondax Raman Products Brochure

Extending Raman into the THz Domain

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