257nm UV Laser for UV Raman Spectroscopy

Description

257nm UV Laser for UV Raman spectroscopy

257nm UV Laser for UV Raman spectroscopy, this 257nm laser can be used in UV Raman spectroscopy to look at biological materials.

UV (257nm laser, ) and visible lasers (532nm laser, 638nm laser ) require shorter accumulation times and can be used at lower laser power than near-infrared lasers(785nm laser).

TEC cooled
Long life operation
Analog/TTL modulation
Collimated straight beam
High efficiency
High reliability

APPLICATIONS
Biology
Biochemistry
Material Inspection

Wavelength 257+/-5nm
Spatial Mode Multi-mode
Output Power 300mW
Operation Mode CW or Modulation
Beam Size 24mm Beam Divergence(full angle) 1.50.2mrad
Fibercoupling acceptable >=25um NA0.22
Power Stability <3% per 4 hrs
Temperature Stabilizing TEC
Warm Up Time <1 minute
MTTF 10,000 hrs

Raman Spectroscopy is a non-destructive chemical analysis technique which provides detailed information about chemical structure, phase and polymorphy, crystallinity and molecular interactions. It is based upon the interaction of light with the chemical bonds within a material.

In Raman spectroscopy, laser choice is important. The laser wavelength chosen will impact Raman intensity, spatial resolution, background fluorescence, acquisition time, and the potential cost of a Raman system.

Lasers used in Raman spectroscopy range from the UV into the near-infrared. Different wavelength regions offer advantages and disadvantages with the final laser selection. Some samples can be analysed at any wavelength with no issues, for example toluene, but for many samples laser wavelength choice is crucial for high quality Raman spectra .