MARCH 11--Sensors Unlimited Inc. (Princeton, NJ; www.sensorsinc.com), a provider of indium gallium arsenide (InGaAs) technology, has introduced the SU1024LE, claimed to be the industry's first 1024-element linear InGaAs photodiode array. Says Marshall Cohen, president, Sensors Unlimited, "The SU1024LE is processed using wafers up to 4 in. in diameter, a manufacturing capability that results in high yield and rapid delivery." The SU1024LE is an extended 1024-element array, twice as long the SU512LD. It features photodiodes on a 25-μm pitch and a readout integrated circuit (ROIC) with antiblooming capability.
The ROIC includes antiblooming for extended intrascenic dynamic range. Antiblooming prevents the spread of charge to neighboring pixels from an oversaturated pixel. This enables techniques for extending the dynamic range with progressively oversaturated acquisitions that pull small signals above the noise floor.
The length of the array is ideal for spectroscopic applications requiring a 1-in. focal plane, as many existing spectrometers utilize, for wide spectral coverage in one acquisition. The standard 500-μm pixel height provides a highly efficient size for optical signal collection.
The SU1024LE array is pin compatible with previous linear arrays for ease in upgrading.
