Dr. James B. Johnson Profile

Dr. James B. Johnson

Optical Engineer at MIT Lincoln Lab

SPIE Involvement:

Conference Program Committee | Author

Area of Expertise:

Optical Systems Engineering , Metrology , Optical Alignment , Optical Fabrication , Lens Design , Freeforms

Proceedings Article | 3 October 2024 Presentation + Paper

Wildfire detection employing an imaging spectrometer with a digital focal plane array

Ronald Lockwood, Michael Griffin, Kevin Ryu, Michael Pieper, Michael Chrisp, James Johnson, Corrie Smeaton, Jade Wang

Proceedings Volume 13144, 1314409 (2024) https://doi.org/10.1117/12.3028175

KEYWORDS: Aerosols, Forest fires, Fire, Atmospheric modeling, Staring arrays, Signal to noise ratio, Spectroscopy, Indium gallium arsenide, Sensors, Electrons

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Proceedings Article | 10 June 2024 Presentation

Folded path reflective telescope for SWAP limited imaging

James Johnson, Robert Martinez, Christopher Roll, Benjamin Cohen, Gary Swanson, Michael Chrisp

Proceedings Volume PC13042, PC1304202 (2024) https://doi.org/10.1117/12.3013885

KEYWORDS: Telescopes, Reflector telescopes, Satellites, Prototyping, Reflection, Optical instrument design, Optical design, Mirrors, Mirror surfaces, Image quality

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Proceedings Article | 7 June 2024 Presentation + Paper

Development and testing of a ruggedized compact VNIR-SWIR hyperspectral imager for remote sensing

James Johnson, Christopher Roll, Bayleigh Nugent, Jenna Montague, Jeromy Lyman, Samuel Berger, Melissa Brennan, Ronald Lockwood, Michael Chrisp, Corrie Smeaton

Proceedings Volume 13042, 1304209 (2024) https://doi.org/10.1117/12.3013690

KEYWORDS: Design, Hyperspectral imaging, Vibration, Thermal modeling, Stray light, Remote sensing

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Proceedings Article | 7 June 2024 Presentation + Paper

Micro-compound parabolic concentrator arrays as alternatives to microlens arrays

Benjamin Cohen, Zachary Darling, Robert Johnson, Madhavi Seetamraju, James Johnson, Christopher Roberts

Proceedings Volume 13030, 1303005 (2024) https://doi.org/10.1117/12.3013509

KEYWORDS: Design, Sensors, Microlens array, Avalanche photodetectors, Solar concentrators, Fabrication, Reflection, Compound parabolic concentrators, Manufacturing, Incident light, Single photon avalanche diodes, Two photon polymerization, Grayscale lithography

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Proceedings Article | 28 September 2023 Paper

Investigation of ultrafast laser stress generation in fused silica, Corning Eagle XG glass, Corning ULE glass, and sapphire

Kevin Laverty, Daewook Kim, James Johnson, Michael Echter, Brandon Chalifoux

Proceedings Volume 12669, 1266907 (2023) https://doi.org/10.1117/12.2677619

KEYWORDS: Silica, Sapphire, Ultrafast phenomena, Ultrafast lasers, Glasses, Laser processing

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Proceedings Article | 28 September 2023 Presentation + Paper

Sensitivity comparison of a NURBS freeform telescope

Derek Kopon, Jenna Montague, Brian Primeau, Plamen Krastev, Gregory Cappiello, James Johnson

Proceedings Volume 12669, 126690C (2023) https://doi.org/10.1117/12.2677577

KEYWORDS: Design and modelling, Optical surfaces, Aspheric lenses, Telescopes, Diffraction limit, Modulation transfer functions, Mirror surfaces, Mirrors, Zernike polynomials, Zemax

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Proceedings Article | 28 September 2023 Presentation + Paper

Faster optical alignment with adjustable, re-lockable, ruggedized, and kinematic (ARRK) mounting

Steven Gillmer, Andrew Guzman, Joseph Flaherty, Kevin Sullivan, Peter Kull, Ava Thrasher, James Johnson, Christopher Roll

Proceedings Volume 12669, 1266908 (2023) https://doi.org/10.1117/12.2682129

KEYWORDS: Beam jitter, Aerospace engineering, Vibration, Optical alignment, Optical mounts, Mirrors, Kinematics, Autocollimators, Commercial off the shelf technology

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Proceedings Article | 14 June 2023 Presentation + Paper

Wide field-of-view NURBS-based freeform afocal telescope

James Johnson, Christopher Roll, Amanda Fontaine, Todd Ulmer, Jeffrey Roth

Proceedings Volume 12530, 1253009 (2023) https://doi.org/10.1117/12.2663846

KEYWORDS: Design and modelling, Mirrors, Telescopes, Mirror surfaces, Optical surfaces, Prototyping, Wavefront errors, Optical alignment, Diamond turning

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