We’re used to hearing about laboratories being populated by nerds, but Laser Components wants to see SERDS making its presence felt.
Labsource laser enables Shifted Excitation Raman Differential Spectroscopy (SERDS)
Shifted Excitation Raman Differential Spectroscopy, SERDS, is a technique in which two Raman spectra generated by slightly different excitation wavelengths cause the background fluorescence to be offset. The result is said to be a dramatic improvement in the identification and measurement of organic and biological samples.
The technique is made possible with the LabSource series of benchtop lasers made by PD-LD, which are available in two models. The LS-1 has a single Volume Bragg Grating stabilised laser diode, while the LS-2 has two stabilised sources and is designed specifically for SERDS techniques.
Standard wavelengths are 647, 785, 830 and 1064nm, but the units can be customised to produce laser output anywhere between 405nm and 2.2um, provided the appropriate laser diode is available.