IR Detectors
IR photodiodes with an emphasis on quantum efficiency: LASER COMPONENTS develops and manufactures photodiodes in the spectral range of up to 2600 nm.
The IA35 series photodiodes based on heterostructures were specially designed for operation at room temperature.
PbS Detectors detect infrared radiation in the wavelength range between 1 µm and 3.3 µm.
Polycrystalline lead selenide (PbSe) is a standard semiconductor detector with a sensitivity of between 1 µm and 5.2 µm.
Pyroelectric crystals generate positive and negative charge carriers simultaneously on opposing sides. The LD21xx series is the first series in which both crystal sides are amplified separately.
Single channel pyroelectric detectors made of LiTaO3 are available for current mode (CM). They are used for gas detection and flame detection.
Multi-channel pyrodetectors: dual-channel, triple-channel and quad-channel versions are available.
DLaTGS detectors exhibit the most effective pyroelectric effect known. Their major application is FTIR.
Advanced single channel voltage mode detectors for FTIR instruments.
A perfect match: The ideal emissivity of Infrasolid emitters complement the high dynamic range and low noise of our custom-made pyrodetectors – complete with selected filter and other accessories.
An IR filter makes all the difference. Thermal detectors are naturally polychromatic, and a filter is needed to detect specific gases/wavelengths.
The best D* in thermopiles is achieved with this arrangement.
Our IR Detectors
Panchromatic, photoconductive and thermal detectors
InGaAs PIN Photodiodes
Modern InGaAs PIN photodiodes are panchromatic and convert broadband light to photocurrents in the Vis-NIR range. Concretely speaking, this means a sensitivity range from 500 nm to 1700 nm for regular InGaAs and – in increments – up to 2600 nm for extended InGaAs. Variations for data transmission are not panchromatic.
PbS and PbSe Detectors
PbS is a standard SWIR semiconductor detector (1 - 3.3 µm) whereas PbSe is used in the MWIR range (1 - 4.7 µm when uncooled; up to 5.2 µm when cooled). Our lead salt detectors are photoconductive; the detector resistance is reduced during illumination. The crystal structure is polycrystalline and is produced via chemical deposition.
Pyroelectric IR Detectors
A pyroelectric IR detector is a thermal detector in that it responds to the change in heat (IR) absorbed on its surface. Thermal detectors are polychromatic with a very wide spectral bandwidth.
The nature of the pyroelectric effect is that in a highly-ordered crystal (or ceramic), a temperature change in the element causes its atoms to move slightly out of position. This rearranges its electrical charge, which is measured in the electrodes on its surface.
The pyroelectric effect is found in many materials. The most commonly-used materials are deuterated lanthanum α alanine-doped triglycine sulfate (DLaTGS) and lithium tantalate (LTO).
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LASER COMPONENTS Detector Group
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Different IR Technologies Give our customers the freedom to choose the best Detector for their Application.
We have implemented different technologies in our IR detectors making it possible for our customers to always find an ideal solution. Depending on the application, one technology may be more ideal than the other. LASER COMPONENTS not only offers high quality components, but also profound technical expertise and individual assistance. This is a rare trait amongst custom manufacturers, of which we are immensely proud.
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Ask for Customized IR Detectors That perfectly meet your needs.
When it comes to (x-)InGaAs or InAs PIN photodiodes, customers can choose from different package styles, cooling features and customized designs. Custom filters are key for pyroelectric detectors to detect the right material.
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LASER COMPONENTS UK - Your competent partner for optical and optoelectronic components in the United Kingdom.
Welcome to LASER COMPONENTS UK Ltd., your expert for photonics components. Each product in our wide range of detectors, laser diodes, laser modules, optics, fiber optics, and more is worth every Pound (£/GBP). Our customized solutions cover all conceivable areas of application: from sensor technology to medical technology. You can reach us here:
Goldlay House, 114 Parkway
Chelmsford Essex CM2 7PR
United Kingdom
Phone: +44 1245 491 499
Email: info(at)
