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Infrared Detectors 

Infrared-measuring – Single detectors and complete solutions

DoroTEK offers - as representative of the Warsaw based VIGO System S.A. - complete solutions in the field of infrared-measuring. Focus of the program are detectors for the spectral range of ca. 2 – 13 µm, which combine high performance with extremly fast response (time constant below 1 ns for some models).

VIGO System engineers research and develope for more than 30 years in the field of infrared radiation detection. At the end of the 60’s, the group around Prof. Dr. Jozef Piotrowski succeeded in developing the world’s first HgCdTe-detector which works at roomtemperature and managed to customize it for serial production.
Since then, VIGO System Ltd. has to be seen as one of the leading companies in this field, and still has its main focus on innovation. Today VIGO System Ltd. produces with 43 employees, among them 2 professors, 6 doctors and 14 engineers.

The IR detectors developed and manufactured at VIGO System are based on HgCdTe ternary alloy, ideal for a wide range of IR detectors due to the material’s fundamental properties - high optical absorption coefficient, high electron mobility and low thermal generation rate, together with the capability for bandgap engineering.

For many years the manufacturing of the IR detectors at VIGO System was based on a modified ISOthermal Vapour Phase Epitaxy (ISOVPE). At present, the fabrication of our IR devices relies on low temperature epitaxial technology, namely MetalOrganic Chemical Vapour Deposition (MOCVD), frequently in combination with the ISOVPE.

Present fabrication program includes, HgCdTe, photoconductive, photoelectromagnetic and photovoltaic detectors optimized for operation at any wavelength within a wide spectral range from 1 to 16 μm and operating within 200 – 300 K temperature range. Special solutions have been applied to improve the speed of response, permiting to construct devices close to picosecond time constant.

The broad line of preamplifiers specifically designed for the HgCdTe detectors, temperature controllers and power supplies, as well as a wide variety of heat sinks. provide an ideal complement for any type of detector – photoconductive, photoelectromagnetic or photovoltaic, offered by VIGO System.

 Data sheets of single detectors as well as the entire presentation of VIGO System’s IR-detector technology are available as download.