Reaction RamanProbeTM



Reaction RamanProbe fits in standard 24/40 opening.  Shown with optional PVC overcoat on steel cable.

A new option for process development and process monitoring applications, the Reaction RamanProbe is a versatile, cost-effective probe for reactions at moderately elevated temperatures and pressures. Due to the compact design, the optical head can be placed at the tip of the 5/8" diameter probe for maximum throughput. The Reaction RamanProbe can be made several feet in length to achieve very long immersion depths.

The standard model is 13" (330 mm) long and constructed from 316 stainless-steel with an o-ring seal around the sapphire window. Various elastomeric materials can be used to withstand many chemical environments. For optimum resistance, Hastelloy C construction with a gold gasket is also available. This probe can also fabricated in longer lengths, and with different window materials.

Available with a compression-welded sapphire window, utilizing a metal-to-sapphire seal for an increased pressure rating.


Flanges can be welded to the Reaction RamanProbe for mounting into process lines and vessels. Consult with InPhotonics for availability and pricing.

Customized  Reaction RamanProbe with dual flanges and suppport sleeve

Downloads (requires Adobe® Acrobat Reader):
Technical Note #13: Background Filtering in Raman Fiber Optic Sampling Probes

Reaction RamanProbe Specification Sheet

Features and Specifications

Sampling Head

Stainless-steel, cylindrical probe tip 5/8" (15.9 mm) diameter x 13" (330 mm) length

Excitation Wavelengths

514, 532, 632, 670, 785, 830 nm, others available upon request

Spectral Range

200 - 3900 cm-1 (Stokes)*

Working Distance

User-adjustable between 5 and <1 mm to optimize measurement of clear and opaque solutions.

Fiber Configuration

Permanently-aligned combination of two single fibers (100 µm excitation fiber, 200 µm collection fiber) with filtering and steering micro-optics, N.A. 0.22, in stainless-steel jacket

Option: fiber sizes ranging from 50 µm to 500 µm

Filter Efficiency

Patented design for complete filtering of the laser line and quartz spectral contributions from both input and output fibers (O.D. > 8 at laser line)

Physical Resistance

Pressure sleeve specified to 1500 psi and up to 200ºC.

Chemical Resistance

Stainless-steel sleeve, sapphire window and Kalrez o-ring are resistant to many chemical environments; Hastelloy-C sleeve (with gold gasket) available as option for corrosive environments.

Cable Length

5 m steel-jacketed cable (std.), up to 100 m on request. PVC coating over steel cable optional.

Safety Features

Emission indicator (std.)

Coupling System

Available with FC (std.) or SMA connectors

Retail Price

$ 8,200 USD (Hastelloy C version $9,200)

*Ultimate spectral range will depend upon spectrograph and detector.
Prices and specifications subject to change without notice.

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