Temperature-stable LTO detectors for FTIR spectroscopy
LASER COMPONENTS’ has announced that its LT3111 series pyroelectric lithium tantalate (LTO) detectors are especially suited for FTIR spectroscopy (Fourier-transform infrared). The core of this new detector series is a 7-µm-thick chip.
Compared to other materials, LTO is extremely temperature stable and robust. Therefore, the detectors do not require additional cooling by a Peltier element even at high temperatures.
Especially at low to medium modulation frequencies, they feature high detectivity and a good signal-to-noise ratio. With a specific detectivity of typically 4.0 E+09 Jones at 10Hz, they deliver a performance similar to that of more expensive thermoelectrically cooled semiconductor detectors.
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