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Avalanche Photodiode for the Ultraviolet Spectral Range
The innovations mady 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.
The SUR500 performance is excellent. At 400 nm the detector has a noise equivalent power (NEP) of typically only 9 fW/sqrt(Hz) at a sensitivity of about 28 A/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 500 µm. Other low noise versions at 1.5 mm and 3 mm will be available soon. The TO housings, which were optimized specifically for the UV range, are hermetically sealed and very compact.
Further product information:
Si APD Chips