Laser Components manufactures deuterated L-alanine doped triglycine sulphate (DLaTGS) pyroelectric detectors for infrared spectrometers. From their research and production facility in Florida, the company supplies customers with these industrial-grade detectors.
According to the manufacturer, DLaTGS has several advantages over standard TGS, the material is doped with deuterium to raise the Currie temperature to 61 degrees centigrade, while doping with L-alanine prevents permanent depoling after excursions above the Currie temperature. These features make DLaTGS one of the highest performing pyroelectric materials available today, Laser Components notes.
The devices are manufactured in standard TO-style packages that can be fitted with a range of windows including CaF2, KBr, BaF2 and ZnSe-Ar. Thermoelectric coolers can also be supplied in TO-99 and TO-37 packages, the TEC can be used to tune the detector temperature to maintain maximum responsiveness.
FTIR spectroscopy was developed to overcome the slow scanning limitations encountered with dispersive elements, and so, ideally, the interferogram needs to be processed quickly. The broad spectral response and short time constant of DLaTGS makes it ideal for this application.
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