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Raman Series

Raman Series is a Raman measurement system consisting of Measurement Unit, Raman Probe, Laser, and Sample Holder (Optional). Generation of a Raman spectrum begins with an excitation laser routed to the sample through a Raman probe. Scattered Raman light is collected by a probe and measured by a Measurement Unit with a sensitivity and Raman shift range appropriate for the user's application. And a sample holder completes the system. You can select options to suit your needs.

The Raman Series, a Raman measurement system, can be configured to explore molecular structures more effectively than IR spectroscopy. These Raman setups are easy to use, accurate, and inexpensive. The Raman Series can be used in a variety of applications, including pharmaceuticals and cosmetics, geology, food analysis, life sciences, and semiconductors.

Surfaced Enhanced Raman Spectroscopy

High performance Surface Enhanced Raman (SERS) substrates intensify Raman emission through plasmonic resonance, boosting signal by many orders of magnitude & enabling detection levels as low as parts per trillion for certain samples.
Flexible & Quick sample application in the form of pipetting, dipping, or swab. There is no required sample drying and detection can be made in seconds!

SERS provides a dependable and guaranteed level of enhancement without special storage conditions.

Low sample cost due to its unique nanostructure deposition process.

SERS is a natural fit for many trace detection applications such as:

  • Agriculture
  • Pesticide detection
  • Food contamination testing
  • Law enforcement and homeland security
  • Trace detection of narcotics such as cocaine and heroin
  • Trace explosives detection
  • Anti-counterfeiting
  • Detection of weakened/inactive counterfeit drugs
  • Counterfeit perfumes and liquors
  • Detection of taggants at parts per billion levels
  • SERS substrates can be used with all of our low cost portable Raman systems and similarly equipped microscopes.

Raman Series Features

  • Compact and Research Grade Raman Systems for quick identification of a variety of liquid, solid, or powder sample
  • Raman Systems include a high performance Raman spectrometer, High power Laser, and Raman probe
  • Standard Raman wavelengths include 532, 785, and 1064nm with many custom options such as 405, 633, 637, 648, 830nm!
  • Versatility: Can be used to measure solids, liquids or powders in a laboratory environment or in the field.
  • Easily Manageable: No sample preparation required, non-contact and non-destructive, no harmful by-products.
  • Fast, accurate chemical identification: Raman spectral signatures can be matched to known libraries.
  • Trace level detection: Can be used with surface-enhanced Raman nanoparticle substrates to amplify weak Raman signals and measure trace samples including pesticides and drugs

 

Raman Series Application

 

  • Pharmaceuticals and Cosmetics: Blend uniformity, high-throughput screening, API concentration, powder content and purity, raw material identification, contaminant identification, in vivo resolution.
  • stone and skin depth profiling, etc.
  • Geology and Mineralogy: Identification of raw stones and minerals, minerals and phase distribution in rock parts, Chondrite/achondrite meteorite identification, minerals and phase distribution in rock parts
  • Graphene material analysis
  • Semiconductors: Alloy composition, contamination identification, superlattice structure, defect analysis, photoluminescence microanalysis, etc.
  • Life Sciences: Biocompatibility, DNA/RNA analysis, drug/cell interaction, disease diagnosis, characterization of biomolecules, bone structure, etc.

 

Raman Series - Raman Probe & Accessories

The Raman Probe consists of a fiber bundle to deliver excitation light to the sample and collect Raman scattered light. Several versatile Raman probes are available for laboratory applications. Additionally, Raman Probes are divided into RIP-RPS and RIP-RPB depending on usage and price.

Raman Probes are perfect for a variety of laboratory and process Raman applications.

  • Multiple Wavelengths such as 532, 633, 785, & 1064nm are standard “in stock” options. Custom wavelengths are usually no problem.
  • Easily Connectable – Connects to Raman Laser sources and Raman spectrometer detectors.
  • Raman Shift Capabilities – Raman filters for 200 cm-1 and f/2 collection optics
  • High throughput collection – Collection optical fiber to the spectrometer is 600um core diameter providing 2-3x signal enhancement compared to typical probes.  Integrated filters for laser line (with O.D. > 6) and notch filter to remove quartz spectral contributions.
  • Probe diameter is 4″ with 2 meter fiber length and has laser blocking switch for simple reference.
  • Working distance to sample is 4.5, 7.5, & 12.5mm options with field depth of +/- 1mm for penetration of sample containers Includes probe holder for solids such as pills or vials (½ inch diameter with lids) for liquids and powders.

Raman Series - Raman Laser

A Raman laser is a special kind of light source that works differently from a regular laser. Instead of using excited atoms or ions to produce light, it uses a nonlinear amplifier medium that relies on a process called Raman gain. This allows the Raman laser to generate light at various wavelengths by selecting the right pump wavelength. As long as both the pump wavelength and the desired laser wavelength fall within the transparent range of the material and have enough intensity, the Raman laser can produce light at any desired wavelength.


Among the components of the RSM Series, Raman Laser provides high-power lasers for Raman excitation wavelengths. Multimode diode lasers produce narrow spectral lines, have an integrated laser driver, and are thermoelectrically cooled for optimal performance.

• Integrated laser package: ready for user use with integrated laser drive, TEC cooled electronics and safety switch.
• Adjustable output power: option for manual or remote control of laser drive current.

Raman Laser Options

 785nm & 1064nm

  • 785/1064nm Raman Laser attaches to Raman-Probe via standard FC/APC connector
  • Raman Laser line 0.2nm FWHM
  • 499mWatt adjustable power
  • Battery powered in Ruggedized metal case
  • Miniature size just 2x4x6″
  • Li-ion Battery Powered All Day
  • Add Raman- Probe- 785 and spectrometer

Raman Laser with Integrated probe

  • 785nm Raman Laser with direct attach 1/2″ vial holder
  • Raman Laser line 0.2nm FWHM
  • 499mWatt adjustable power
  • Holds 1/2″ round sample vials- liquids, powders, and solids
  • Li-ion Battery powered in Rugged metal case
Raman Laboratory Laser Mainframe
  • Designed for use in the laboratory
  • Interchangeable Modules
  • Configurable Wavelengths
  • Adjustable Power
  • Turn key systems and OEM modules
  • Typically recomneded for 532nm & custom wavelengths

Choosing a Raman Spectrometer System’s Excitation Wavelength

When choosing a Raman instrument, one of the primary concerns is the wavelength of the laser that is integrated into the Raman spectrometer system.  A samples Raman signature and the peak position is related to the samples unique chemical structure and is independent of the excitation wavelength, so the molecular fingerprint will be the same regardless of the excitation laser wavelength. Different laser frequencies provide specific strengths and weaknesses allowing a user to optimize the measurement of different samples by their choice of Raman laser. The three most popular Raman spectrometer wavelengths are 532nm, 785nm and 1064nm.

 

 785nm785nm1064nm
Raman signal efficiencyHighMediumLow
Fluorescence
(Potential interference signal)
HighMediumLow
Heat absorption from laser (Sample Breakdown)LowMediumHigh