Mr. David G. MacDonnell Profile

David G. MacDonnell

at NASA Langley Research Ctr

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Publications (2)

Proceedings Article | 10 March 2020 Presentation

Active tunable filters based on GeSbTe phase-change materials and surface plasmon resonance (Conference Presentation)

Hyun Jung Kim, Matthew Julian, Calum Williams, Scott Bartram, David MacDonnell

Proceedings Volume 11276, 112760C (2020) https://doi.org/10.1117/12.2543812

KEYWORDS: Tunable filters, Surface plasmons, Germanium antimony tellurium, Mid-IR, Optical filters, Imaging spectroscopy, Image filtering, Manufacturing, Spectral resolution, Refractive index

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Proceedings Article | 25 May 2018 Paper

Lidars utilizing vortex laser beams

Carl Weimer, Yong Hu, Jeff Applegate, Mike Lieber, Wenbo Sun, David MacDonnell

Proceedings Volume 10631, 106310Q (2018) https://doi.org/10.1117/12.2310042

KEYWORDS: Laser scattering, LIDAR, Wavefronts, Light scattering, Spatial light modulators, Mie scattering, Finite-difference time-domain method

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