785nm laser excitation is the most common wavelength chosen for Raman spectroscopy. This is because the red laser has a good balance between Raman efficiency, sample fluorescence, and heat absorption. Likewise 785nm lasers are typically less expensive that other frequencies allowing total system price to be very economical.
-Raman-HR-TEC-785 Spectrometers: are our most popular Raman spectrometers and include an enhanced CCD array detector tuned for 785nm Raman with advanced detector lens assembly for ultra sensitivity at long exposure times.
-Raman-HR-TEC-X2-785 Spectrometers: offers 2-stage detector cooling for ultimate sensitivity and performance. Great for long exposures up to 8 minutes.
-Raman-SR spectrometers: are typically recommended for OEM and portable applications where the specific sample set is known and works well without detector cooling.
-StellarCASE-Raman-785: is a portable and rugged Raman System for “Open & Measure” Application. This complete system includes a high performance Raman spectrometer (Raman-HR-TEC-785), High power Laser, and vial holder.
|Raman Spectrometer||Wavelength Range|
|Resolution (cm-1)||Integrated 1-Stage TE Cooler||TEC-X2 Option|
HR = High Resolution
SR = Standard Resolution
Specifications for StellarNet Raman Configured Spectrometers
|Optical Resolution:||HR= 4 cm-1|
SR = 8 cm-1
|Spectral Range:||HR = 200-2,750 cm-1|
SR= 200-3,200 cm-1
Early Start Available
|Diffraction Gratings:||1200 g/mm with gold surface|
Detector & Electronics
|Detector Type:||SONY ILX CCD |
14um x 200um
|Detector Lens:||Advanced cylindrical lens assembly|
|Thermo Electric Cooling:||1 Stage = -15 Deg C|
2 Stage = -30 Deg C
|Exposure Times:||- 20s without TEC|
- 60s with TEC
- 8 minutes with TEC-X2!
|Signal to Noise:||>1000:1|
@ Exposure time above 30s TEC 1 has >50% noise reduction and TEC-X2 has >80%
HR/ER= 6 x 17 x 15.5 cm
SR = 2.5 x 7.6 x 12.7cm
|Weight:||HR= 1.5 kg|
SR= 14 ounces
Software & Interface
|Operating System:||Win XP, 7,8,10|
(Wifi & Webserver Options)
|Software:||SpectraWiz, SpectraWiz-ID, LabView, Spectroscopy Pro-tools, Delphi, C, C#|
Interchangeable Slits Upgrades: are available for “HR” optical benches to allow more application flexibility. High Scattering samples can be measured with the smallest slit for highest resolution and weak Raman can be measure with a larger slit to allow for increased light throughput.
Raman-Probe-785: Attaches to 785nm laser via FC/APC and spectrometer via SMA 905, has integrated Raman filters and optics (working distance– 4.5mm), high efficiency collection fibers for StellarNet Raman spectrometers
Raman-Probe-TIP: attachements tips can be purchased for additional working distance options. Just screw on to replace
Raman-Probe-TIP-Tele: Telescoping Raman probe tip lens assembly attachment for 3cm working distance. Designed to by mounted on to standard Raman probe with 5mm working distance
RPH4: Raman Probe Holder block supports 1/2″ vials.
RPH5: Vertical Raman Probe Holder Block for powder and solids. Samples are placed onto a slide and inserted into the measurement chamber of the block. Includes a laser safety interlock which only allows the laser to fire when the probe is securely seated into the holder.
Raman-Probe-HT: High Temperature Raman probe to 200 deg C
Raman-Probe-Immersion: Immersion Raman Probes for 785nm source. Stainless-steel, cylindrical probe head with removable immersion sleeve, overall dimensions 5/8″ (15.8mm) diameter x 8″ (230 mm) length
Raman-Probe-Process: Raman Process Probe for 785nm source. Stainless-steel pressure sleeve specified to 3000 psi and up to 500ºC. Sapphire window and gold seal are resistant to many corrosive chemical environments.