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Raman spectroscopy is a technique that measures the energy of photons generated by the inelastic scattering of monochromatic excitation photons. During excitation, photons interact with the electron cloud of an analyte and a small percentage of these photons undergoes a change in energy as a result of the interaction. This energy change corresponds with molecular vibrations, rotations, and other low-frequency modes and is plotted by instrumental operating software to produce a spectrum. Raman spectroscopy is often described as a complimentary technique to FTIR because both techniques are used to probe vibrational energy levels although different selection rules allow FTIR and Raman to interrogate different sets of molecular vibrations. Raman scattering is an inherently low probability phenomenon and as such, the Raman scattering cross-section of a particular analyte will generally be several orders of magnitude less than the corresponding FTIR absorption cross-section. Practically, this means that the sensitivity of Raman spectroscopy is lower than FTIR spectroscopy. There are several advanced Raman spectroscopy techniques that generate a stronger Raman intensity when compared to spontaneous Raman scattering such as Coherent Anti-Stokes Raman Spectroscopy (CARS), Resonance Raman Spectroscopy, Surface Enhanced Raman Spectroscopy (SERS) and Tip Enhanced Raman Spectroscopy (TERS).

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CBEx

CBEx

Snowy Range Instruments

CBEx is a handheld Raman spectrometer with 785 nm excitation laser for non-contact analysis of liqui...

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CBEx 1064

CBEx 1064

Snowy Range Instruments

Handheld Raman spectrometer with 1064 nm excitation laser for non-contact analysis of liquids, gels,...

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EZRaman-H

EZRaman-H

TSI, Inc.

The EZRaman-H is a handheld Raman analyzer for general purpose, including material identification a...

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FirstDefender

FirstDefender

Thermo Fisher Scientific, Inc.

The Ahura FD is a hand-held Raman spectrometer designed for on-site identification of unknown solids...

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FIRSTGUARD

FIRSTGUARD

Rigaku Analytical Devices

Handheld identification of solids, liquids, powders and other materials. Choice of 532, 785 or 1064...

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Flex Probe

Flex Probe

Thermo Fisher Scientific, Inc.

FlexProbe is an accessory for the FirstDefender handheld Raman system.

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InPhotote 1064

InPhotote 1064

InPhotonics, Inc.

The InPhototeTM is a complete Raman spectrometer system in a rugged, portable package. A frequency s...

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LS-ID

LS-ID

Airsense Analytics

The LS-ID is a palm-size handheld Raman spectrometer for the identification of unknown solid and liq...

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Nomadic™ Large-format Raman Microscope

Nomadic™ Large-format Raman Microscope

Bay Spec

The NomadicTM large-format Raman microscope is an ideal tool for automatic Raman inspection and char...

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Nomadic™ Raman Microscope Module

Nomadic™ Raman Microscope Module

Bay Spec

BaySpec’s NomadicTM confocal Raman microscope OEM module is built using the core components of the N...

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Nomadic™ Research-Grade Raman Microscope

Nomadic™ Research-Grade Raman Microscope

Bay Spec

BaySpec’s Nomadic™ Raman microscope line is the only Raman microscope on the market today simultaneo...

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ObserveR

ObserveR

SciAps, Inc.

ObserveR™ is a medium range stand-off Raman system designed to keep users at safer distances during ...

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Pendar X10

Pendar X10

Pendar Technologies

The Pendar X10 is a short-range (1 m) standoff handheld Raman analyzer.

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Portable SERS Analyzer

Portable SERS Analyzer

Real-Time Analyzers, Inc.

The Portable SERS Analyzer incorporates a high performance 785 nm spectrometer with RTA's patented S...

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Progeny

Progeny

Rigaku Analytical Devices

The Rigaku Progeny uses a 1064 nm, 490 mW laser in a handheld Raman analyzer this minimizes fluoresc...

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RamanID

RamanID

Real-Time Analyzers, Inc.

The RamanID is a portable, rugged, brief-case system weighing under 30 pounds. The system operates o...

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