Optoelectronics
Avalanche Photodiode for the Ultraviolet Spectral Range World‘s First: Si Avalanche Photodiode for 200 - 1000nm
The innovations made by LASER COMPONENTS Detectors Group do not stop. A new detector, the SUR500, was developed specifically for (bio-)medical applications in which the smallest signals in the short-wave UV/blue spectral range have to be detected.
Due to their very high sensitivity and their extremely low noise, SUR-series avalanche photodiodes are suited for measurements in photometry or in analytical systems as well as for fluorescence measurements.In addition to measurements in the optimised blue and UV spectral range the photodiode can be used for measurements in the entire wavelength range between 200nm and 1000nm.
The SUR500 performance is excellent. At 400nm the detector has a noise equivalent power (NEP) of typically only 9 fW/sqrt(Hz) at a sensitivity of about 28A/W. Such values can only be achieved with a special reach-through structure developed by LASER COMPONENTS.
The SUR series is currently available with an active diameter of 500μm. Other low noise versions at 1.5mm and 3mm will be available soon. The TO housings, which were optimised specifically for the UV range, are hermetically sealed and very compact.
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