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23 May 2011 Nanostructure-based EO/IR focal plane array development for unattended ground sensor applications
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Next Generation EO/IR focal plane arrays using nanostructure materials are being developed for a variety of Defense Applications including Unattended Ground Sensor Applications. Several different nanomaterials are being evaluated for these applications. These include ZnO nanowires that have demonstrated large signal to noise ratio as a wide band gap nanostructure material in the UV band. Similarly, the work is under way using Carbon Nanotubes (CNT) for a high speed detector and focal plane array as bolometer for IR bands of interest, which can be implemented for the unattended ground sensor applications. In this paper, we will discuss the sensor design and model predicting performance of an EO/IR focal plane array that can cover the UV to IR bands of interest. The model can provide a robust means for comparing performance of the EO/IR FPA's and Sensors that can operate in the UV, Visible-NIR (0.4-1.8μ), SWIR (2.0-2.5μ), MWIR (3-5μ), and LWIR bands (8-14μ). This model can be used as a tool for predicting performance of nanostructure arrays under development. We will also discuss our results on growth and characterization of ZnO nanowires and CNT's for the next generation sensor applications. Several approaches for compact energy harvesting using nanostructures will be discussed.
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Ashok K. Sood, E. James Egerton, Robert A. Richwine, Yash R. Puri, Tariq Manzur, Nibir K. Dhar, Dennis L. Polla, Zhong L. Wang, Gustavo E. Fernandes, Jimmy Xu, Priyalal S. Wijewarnasuriya, and A. F. M. Anwar "Nanostructure-based EO/IR focal plane array development for unattended ground sensor applications", Proc. SPIE 8046, Unattended Ground, Sea, and Air Sensor Technologies and Applications XIII, 80460N (23 May 2011);

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