Joshua Shank

A canonical model for behavior for an event-based camera detector

Stephen D. Burks, Aaron Hendrickson, David P. Haefner, Joshua Shank et autres

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Reproducible emission from nonlinear random lasers

Jonathan Andreasen, Wesley D. Robertson, Roger C. Brown, Joshua Shank et autres

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Quantifying effluent flow with event-based sensors

Bjorn Kjellstrand, Lilian K. Casias, Kaylin Hagopian, Christian Pattyn et autres

Novel algorithm development for event-based sensing deployment

Bjorn Kjellstrand, Lilian K. Casias, Kaylin Hagopian, Christian Pattyn et autres

Event-based sensors (EBS) consist of a pixelated focal plane array in which each pixel is an independent asynchronous change detector. The analog asynchronous array is read by a synchronous digital readout and written to disk. As a result, EBS pixels consume minimal …

Gasb-to-Si Direct Wafer Bonding and Thermal Budget Considerations for Photonic Applications

William M. Martinez, Evan M. Anderson, Michael Wood, Thomas A. Friedmann et autres

Motivation: III-V on Si HI and Substrate Removal • Integrating III-V optoelectronics with high-performance, densely integrated Si electronics and photonics offers superior performance and use cases than either platform alone • III-V sources: efficient direct or non-linear emission from UV to long-wave …

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Reduced SWAP Hyperspectral Imaging Through Event-based Sensing

Joshua Shank, Christopher Saltonstall, John VanderLaan, Christopher M. Murzyn et autres

Hyperspectral Imaging (HSI) is a powerful sensing method to detect and classify chemicals/elements relevant to the nonproliferation mission space.Traditional HSI systems suffer from very large datasets/data cubes that are difficult to store, process, and transfer in remote detection scenarios.Event-based sensing (EBS) is …

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PET ROCK: Persistent Event-based sensing at Testbeds Real-world Objective Comparison of Key-hardware

Joshua Shank, Liam P. Andrus, Lucas Kunsman, Garrett Giddings et autres

Goals and ObjectivesWhile recent studies have demonstrated event-based sensing (EBS) as a promising remote detection technology, there have been no direct comparisons of EBS against more traditional technologies in real-world proliferation detection scenarios.This project will prove with quantifiable results how event-based sensing …

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Event-based sensing for the detection of modulated signals in degraded visual environments

Christian Pattyn, Å. Edström, Andrés Sánchez, Karl R. Westlake et autres

This paper describes objective technical results and analysis.Any subjective views or opinions that might be expressed in the paper do not necessarily represent the views of the U.S.

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Substrate-Independent Technique of III-V Heterogeneous Integration of Focal Plane Arrays and Lasers

Michael G. Wood, Matthew Bahr, Darwin K. Serkland, Jordan E. Gutierrez et autres

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Tuning and tailoring of the optical properties of transparent conducting oxides for dynamic nanophotonic applications

Soham Saha, Michael G. Wood, Benjamin T. Diroll, Aveek Dutta et autres

Controlling the permittivity of materials enables control over the amplitude, phase and polarization of light interacting with them. Tailorable and tunable transparent conducting oxides have applications in optical switching, beam steering, imaging, sensing, and spectroscopy. In this work, we experimentally demonstrate wide …

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Investigation of Event-based Sensing for Proliferation Detection.

Joshua Shank, Arlo Ames, Lilian K. Casias, Kaylin Hagopian

This paper describes objective technical results and analysis.Any subjective views or opinions that might be expressed in the paper do not necessarily represent the views of the U.S. Department of Energy or the United States Government.

Broadband high-speed and large-amplitude all-optical switching with cadmium oxide (Conference Presentation)

Soham Saha, Benjamin T. Diroll, Joshua Shank, Zhaxylyk A. Kudyshev et autres

We experimentally investigate how the static and dynamic optical properties of cadmium oxide evolve with yttrium doping, for the design of optical and plasmonic devices spanning the near-infrared to the mid-infrared wavelengths. The metallicity is seen to increase and the epsilon-near-zero point …

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