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7 December 1988 High-Performance Random-Access Linear Photodiode Array For Spectroscopy Applications
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Abstract
A 1024-element random-access linear photodiode array has been developed for emission or absorption spectros-copy applications. This new array is especially useful in very high contrast intensity conditions. Each element of the array is 25 μm x 2500 μm giving each a slit-like geometry with a 100 : 1 aspect ratio suitable for coupling to monochromators or spectro-graphs. Ten address lines are implemented to select an individual photo-site. Therefore, the array has the flexibility of operating in either random-access or sequential-readout modes. In the case of the sequential-readout mode, the array will detect a photo spectrum with a dynamic range in excess of 10,000 : 1. In the random-access mode, the spectrum infomation can be further enhanced by varying the integration times of each pixel. Other array sizes with 512 and 256 photoelements have also been developed. The device structure, operation, and performance will be presented.
© (1988) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Weng -Lyang Wang, Les Bottenberg, and Satch Tanaka "High-Performance Random-Access Linear Photodiode Array For Spectroscopy Applications", Proc. SPIE 0972, Infrared Technology XIV, (7 December 1988); https://doi.org/10.1117/12.948289
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