- Compact and Research Grade Raman Systems for quick identification of a variety of liquid, solid, or powder samples
- 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!
- SpectraWiz ID Raman Library with Save and Search functionality included FREE. Save your samples and then search for matches!
- Microscope Accessory Pack available for micro Raman applications as well as affordable SERS strips for trace substance analysis
- Raman Spectrometers Overview
- Technical Specifications
- NEW! 2-Stage eXtreme TEC Detector Upgrade
StellarNet has released a new series of updated spectrometers configured for Raman spectroscopy applications that perform quick identification of a variety of liquid, solid, or powder samples.
Raman-HR-TEC spectrometers include enhanced CCD array detectors for 785nm Raman & 532nm Raman with advanced detector lens assembly for ultra sensitivity at long exposure times. (other wavelengths available on request). Raman-HR-TEC-X2 offers 2-stage detector cooling for ultimate sensitivity and performance!
– New Affordable SERS Substrates (see tab above)
– StellarSCOPE Raman Microscopy Systems
As always with StellarNet instrumentation, the fiber optically coupled Raman spectrometer series is extremely ruggedized and compact for portable and field applications. USB2 connection to PC for power and data is quick and easy!
• StellarNet Raman spectrometers are rugged mini spectrometers configured specifically for Raman spectroscopy applications using Raman Lasers
• Enhanced optics allow for extreme sensitivity and extra low stray light values down to 0.05%.
• High Resolution models available down to 4 cm-1 with options for maintaining S/N with TEC cooling.
• Compact size & seriously Rugged for portable and field applications. Metal enclosures are extremely durable.
StellarNet Raman Systems have many applications in food, beverages, narcotics, plastics, pharmaceuticals, and raw materials.
Current Customer Publications- See some current StellarNet customer applications involving Raman…
|Specifications for StellarNet Raman Configured Spectrometers|
|Optical Resolution:||4 cm-1 or 8 cm-1||Dimensions:||1x3x5 inch|
|Signal to Noise:||1000:1||Weight:||14 ounces|
|Detector Type:||Enhanced CCD with 2048 pixels||Power Consumption:||<100mA , USB powered|
|Diffraction Gratings:||1200 g/mm with gold surface||Fiber Optic Input:||SMA905|
|Spectral Range @785nm||200-2200 cm-1 / 200-3200 cm-1||Interface:||USB-2|
|Stray Light:||<0.05%||Operating Systems:||WinXP, Vista, Win7 (32/64-bit)|
|Exposure Times:||to 20sec -or- to 60sec w/ TEC||Software:||SpectraWiz, LabView, Delphi, C|
StellarNet has released new high performance & affordable Surface Enhanced Raman (SERS) substrates for use with their line of low cost Raman spectrometer systems. The 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.
StellarNet’s SERS substrates have advantages over other technologies in low sample cost due to its unique nanostructure deposition process. Additionally, they offer flexible and 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 is a natural fit for many trace detection applications, from detection of pesticide, explosive, and narcotics residues to applications including anti-counterfeiting, R&D and industrial process control. StellarNet SERS substrates can be used with all of our low cost portable Raman laser systems and similarly equipped microscopes.
This add-on eXtreme cooler lowers the temperature of the CCD to 30 degrees below ambient and increase instrument S/N drastically by reducing noise over 80% at long exposures. This 2-stage eXtreme TEC upgrade improves low light measurement quality and detection limit capability for Raman, Fluorescence, and other weak light emission applications.
Thermoelectric detector cooling improves the stability of the detector for lengthy measurements where thermal noise can distort and override signal. In order to achieve such low temperatures the 2-stage eXtreme TEC add-on includes a new sealed and isolated detector enclosure with specialized heat sink and air flow design for added stability and cool operation.
Add-on your eXtreme TEC today for just $2,950! ContactUs@StellarNet.us for a quotation or get in touch with your local StellarNet representative.
Raman Laser Options
Ramulaser™ 785nm & Ramulaser™ 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
Ramulaser-Vial- Reduce cost with integrated probe!
- 785nm Raman Laser with direct attach 1/2″ vial holder
- Raman Laser line 0.2nm FWHM
- 499mWatt adjustable power
- Direct attach to spectrometer reduces probe cost
- Holds 1/2″ round sample vials- liquids, powders, and solids
- Miniature size just 2x4x6″
- Li-ion Battery powered in Rugged metal case
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.
How do I choose a Raman laser frequency for my Raman spectroscopy application?
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.
*Most popular system for price and performance
How do I convert Raman wavenumber shift (cm-1) to nanometers (nm)?
Try using our Raman wavenumber shift to nanometer converter. Enter in your laser frequency, wavelength range, and press the conversion buttons!
Raman Spectrometer System Sample Spectra
Raman Spectroscopy with a 785nm Raman Spectrometer and laser is our most popular option. Choose the Ramulaser-785, Raman-HR-TEC (or new Raman-HR-TEC-X2 upgrade), Raman-probe-785nm, Raman probe holder, and 785nm Laser Safety Goggles.
Pharmaceutical Match Test- Raman-HR-TEC 785nm Raman spectra of Tylenol (Acetaminophen/Paracetamol) displaying Library search hit of Tylenol as #1 and Excedrin (containing Acetaminophen/Paracetamol) as #2.
Raw Material ID of Maltol–
The Raman-HR-TEC Spectrometer is used to capture the Raman spectrum of a powdered Maltol sample in a 1/2″ vial using the Ramulaser-785 & Raman-Probe-785. StellarNet’s free SpectraWiz software performs a Library search displaying Maltol as the #1 hit. Maltol is a naturally occuring organic compound primarily used as a sweetener and a flavor enhancer.
Raman Spectra of Minerals – Fluorite
Raman spectroscopy is being used more and more in the analysis of rocks and minerals. Raman is very sensitive to end-member functional groups like -OH and -CO2 and is well suited for silicate and carbonate minerals. Raman can identify minerals that NIR or other techniques may be blind to and can even identify different forms of carbon.
Raman Spectroscopy with a 532nm Raman spectrometer and laser is another popular option. Choose the Laboratory Laser 532, Raman-HR-TEC (or new Raman-HR-TEC-X2 upgrade), Raman-probe-532nm, Raman probe holder, and 532nm Laser Safety Goggles.
532nm Raman Spectra of Acetic Acid using StellarNet Raman-HR-TEC (configured for 532nm lasers), Raman-Probe-532, and the Lab-LS-532. Additionally, probe holder and laser safety goggles are required with every system.
532nm Raman Spectra of Graphene & Graphite samples using StellarNet Raman-HR-TEC-X2 (configured for 532nm lasers), Raman-Probe-532, and the Lab-LS-532. Additionally, probe holder and laser safety goggles are required with every system.
Raman Spectroscopy with a 1064nm Raman spectrometer and laser is a popular system for reducing sample fluorescence. Choose the Ramulaser-1064nm, Raman-HR-TEC-IG, Raman-probe-1064nm, Raman probe holder, and 1064nm Laser Safety Goggles.
Raman of Impurities in Lubricants
1064nm Raman spectra of pure lubricant, lubricant with impurity, and impurity with identifiable Raman peaks showing feasibility of qualitative & quantitative analysis of impurity.
1064nm Raman of Rum w/Methanol Impurity-
Raman spectra of Rum with methanol spike using the Raman- Probe-1064, Ramulaser-1064, and Raman-SR-TEC-IG spectrometer. The probe is held directly up to the side of the Rum bottle. Comparison with pure methanol shows similar peaks and means for detection.
|Item Descriptions||Raman Spectrometers for 532, 785,1064nm, and customer laser frequencies|
|<< New 2016! Raman-HR-TEC-X2 for 80% noise reduction! >>|
|Raman-SR||Raman Standard Resolution for 200-3200 cm-1 @ 785nm with 8 cm-1||$3500|
|Raman-HR-TEC||Raman High Resolution for 200-2200 cm-1 @ 785nm with 4 cm-1 resolution plus additional Thermo Electric Cooler (TEC) for increased S/N with detector integration times > 3 seconds. 1-stage TEC maintains -15 degrees and reduces noise by 50%.||$5295|
|Raman-HR-TEC-X2||High Resolution configuration for 200-2200 cm-1 @ 785nm with 4 cm-1 resolution. Spectrometer includes high sensitivty detector lens assembly, 16-bit low noise electronics, high resolution slit, and 2-Stage Thermoelectric detector cooler. The 2-Stage eXtreme TEC maintains a constant -30 degrees below ambient temperature and increases signal to noise by reducing noise effects by over 80% at long exposures (<3000ms). TEC includes a sealed and isolated detector enclosure with specialized heat sink and air flow design for added stability and cool operation||$8245|
|Raman-SR-TEC-IG||Raman Standard Resolution for 200-3500 cm-1 @ 1064nm with 16 cm-1 resolution via PDA with TEC cooled 512 pixel InGaAs photodiode array. Minimize fluorescence via1064nm laser!||$15333|
|Raman-HR-TEC-IG||Raman High Resolution for 200-3500 cm-1 @ 1064nm with 8 cm-1 resolution via PDA with TEC cooled 1024 pixel InGaAs photodiode array. Minimize fluorescence via1064nm laser!||$19777|
|RamuLaser-785||Portable Raman Laser for 785nm with 350/499mW adjustable output and FC/APC attachment for standard Raman probe. Includes integrated LI battery with charger for 8 hour operation.||$4895|
|RamuLaser-1064||Portable Raman Laser for 1064nm with 350/499mW adjustable output and FC/APC attachment for standard Raman probe. Includes integrated LI battery with charger for 8 hour operation.||$4895|
|Lab-LS-785/532||Laboratory Laser Source mainframe with one SSR-Laser-785-350 350mW 785nm Raman Laser (optional 500mW). Additional Laser Subsystem modules start @ $4200 each||$7200|
|Ramulaser-Vial||Portable Raman laser vial for 785nm, 500mW adjustable output power, 0.2nm FWHM laser with integrated collection optics for direct attach to spectrometer
NEW! Reduces system cost and portability
|Raman Spectroscopy Accessories|
|Raman- Probe-785||Attaches to laser via FC/APC and spectrometer via SMA 905, has integrated Raman filters and optics with working distance of 4.5mm to sample, configured for a 785nm laser. 105um illumination fiber and 600um collection for highest sensitivity. 7.5mm, 10mm, and larger working distance optional.||$3,245|
|Raman- Probe-532||Attaches to laser via FC/APC and spectrometer via SMA 905, has integrated Raman filters and optics with working distance of 4.5mm to sample, configured for a 532nm laser. 105um illumination fiber and 600um collection for highest sensitivity. 7.5mm, 10mm, and larger working distance optional.||$3,545|
|Raman- Probe-1064||Attaches to laser via FC/APC and spectrometer via SMA 905, has integrated Raman filters and optics with working distance of 4.5mm to sample, configured for 785nm laser. 105um illumination fiber and 600um collection for highest sensitivity. 7.5mm, 10mm, and larger working distance optional.
Custom wavelengths also available! (check for pricing)
|RPH4||Raman Probe Holder Block for the Raman- Probe-785. Accepts cuvettes and solid samples.||$275|
|SERS-30||Package of 30 SERS substrates||$199|
|SERS-100||Package of 100 SERS substrates||$599|
|Goggles-785||Raman Laser Safety Goggles (specify wavelength)||$179|
All data and statements contained herein are subject to change in accordance with StellarNet’s policy of continual product improvement.
Please contact us about availability of additional laser frequencies used for Raman such as 532 / 647 / 830 / 1064nm.
Raman Spectroscopy may not work for your application please firstname.lastname@example.org to perform a free feasibility study.
The FREE Spectral ID application allows users to save sample spectra to a specified library, then later perform a real time search using unknown samples to look for matches. This feature works for Raman, NIR, or UV-VIS spectra using covariance mathematics to assign a correlation value and displays the top 10 library entries that qualify as a match.
The Spectral ID interface panel is simple and easy to use, allowing the user to click “Capture” and then ‘Analyze” to display matches. The user can then click on any match to see its actual library spectrum and compare it to the captured one.
The powerful SpectraWiz software has a series of processing algorithms to compensate spectral baseline offsets and minimize effects due to off-axis scattering and fluorescence.
StellarNet’s free-of-charge SpectraWiz software enables a multitude of spectroscopy measurements. It’s like a Swiss army knife with many applications already built in. Raman sample identification can be easily be performed by coupling StellarNet’s high performance Raman spectrometers, lasers, and sampling accessories. NIR spectroscopy systems include the compact DWARF-Star NIR InGaAs spectrometers, broadband light sources, and reflectance/dip probes, flow cells, or fixtures. Samples can be liquids, solids, films, or powders. They can be inside vials, in free space or even in baggies. With StellarNet low cost spectroscopy instrumentation sample identification and analysis has never been easier.
Raman Probe Raman-Probe-785, Raman- Probe-532, & Raman-Probe-1064 • Connects to 785/532/1064nm Laser accessory such as Ramulaser or Raman Laser Mainframe via FC/APC fiber optic connector and spectrometer via SMA 905 • Rigid probe length is 100mm with integrated Raman filters for 200 cm-1 and f/2 collection optics • Excitation fiber is 100um diameter and read fiber to spectrometer is 600um core diameter • Probe diameter is 4mm with 2 meter fiber length and has laser blocking switch for simple reference • Integrated filters for laser line (with O.D. > 6) and notch filter to remove quartz spectral contributions • Working distance to sample is 4.5mm 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 Probe Holder Block RPH4 Supports 1/2″ vials and solids like tablets and pills!
Raman probe telescoping accessory increases working distance to sample!