Dr. James N. Howell Profile

Dr. James N. Howell

Optical Engineer

SPIE Involvement:

Author

Publications (10)

Proceedings Article | 2 August 2021 Presentation + Paper

Ambient performance testing of the CubeSat Infrared Atmospheric Sounder (CIRAS)

Thomas Pagano, Mark Schwochert, Sir Rafol, Yuki Maruyama, Brian Monacelli, Dean Johnson, David Ting, Daniel Wilson, Megan Gibson, Thomas Kampe, Juancarlos Soto, James Howell, Robert Wilson

Proceedings Volume 11832, 118320D (2021) https://doi.org/10.1117/12.2593625

KEYWORDS: Sensors, Fabry–Perot interferometers, Signal to noise ratio, Infrared radiation, Spectroscopy, Optical fabrication, Black bodies, Collimators, Calibration, Mirrors

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Proceedings Article | 9 September 2019 Presentation + Paper

The compact hyperspectral prism spectrometer for sustainable land imaging: enhancing capabilities for land remote sensing

Thomas Kampe, Nathan Leisso, Robert Slusher, Paul Kaptchen, Nathan Showalter, Jerold Cole, Jonathan Fox, Kyle Solander, Lyle Ruppert, Rusty Schweickart, William Good, James Howell, Robert Warden, Frank Grochocki, James Baer, Laura Coyle, James Lasnik, Betsy Farris, Emily Mrkvicka

Proceedings Volume 11127, 111270W (2019) https://doi.org/10.1117/12.2529552

KEYWORDS: Earth observing sensors, Landsat, Calibration, Laser imaging, Spectroscopy, Prisms, Optical filters, Decision support systems, Spectral calibration, Staring arrays

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Proceedings Article | 9 September 2019 Paper

Continuation of the Landsat Mission with Sustained Land Imaging (SLI) and the Reduced Envelope Multispectral Imager (REMI)

Dennis Nicks, James Howell, Bob Slusher, Tom Kampe, Paul Kaptchen, Nathan Leisso, Nathan Showalter, Emily Mrkvicka, Betsy Farris, Bob Warden, Kyle Solander, Jonathan Fox, Homero Gutierrez, Nick Pulaski, Bill Good, Lyle Ruppert, Erik Wilkinson

Proceedings Volume 11127, 111270X (2019) https://doi.org/10.1117/12.2529570

KEYWORDS: Earth observing sensors, Landsat, Mirrors, Mirror pointing, Short wave infrared radiation, Control systems, Sensors, Staring arrays, Calibration

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Proceedings Article | 23 October 2018 Paper

Hyperspectral remote sensing of air pollution from geosynchronous orbit with GEMS and TEMPO

Dennis Nicks, Brian Baker, James Lasnik, Thomas Delker, James Howell, Kelly Chance, Xiong Liu, David Flittner, Jhoon Kim

Proceedings Volume 10781, 107810T (2018) https://doi.org/10.1117/12.2324781

KEYWORDS: Space operations, Calibration, Remote sensing, Pollution, Data modeling, Aerospace engineering, Spectroscopy, Earth's atmosphere, Diffusers

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Proceedings Article | 1 May 2009 Paper

Optical autocovariance direct detection lidar for simultaneous wind, aerosol, and chemistry profiling from ground, air, and space platforms

Christian Grund, James Howell, Robert Pierce, Michelle Stephens

Proceedings Volume 7312, 73120U (2009) https://doi.org/10.1117/12.824204

KEYWORDS: Backscatter, Aerosols, LIDAR, Receivers, Doppler effect, Signal attenuation, Sensors, Signal detection, Calibration, Transmitters

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Proceedings Article | 19 August 2005 Paper

Sub-aperture interferometric testing of a large-scale elliptical mirror under thermal-vacuum conditions

James Howell, Richard Summers, Michael Dittman, Kevin Weed, Robert Bates, Peter Spuhler, Wayne Pierre

Proceedings Volume 5869, 586910 (2005) https://doi.org/10.1117/12.614934

KEYWORDS: Mirrors, Silicon carbide, Interferometry, Optical testing, Thermography, Thermal modeling, Mirror mounts, Optical components, Aerospace engineering, Optical metrology

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Proceedings Article | 14 October 2004 Paper

High-precision measurement of effective focal length with single-mode fiber array

Pei Huang, James Howell

Proceedings Volume 5523, (2004) https://doi.org/10.1117/12.558796

KEYWORDS: Prisms, Single mode fibers, Optical testing, Sensors, Staring arrays, Silicon, Glasses, Collimation, Metrology, Distortion

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Proceedings Article | 22 October 1999 Paper

Multicenter airborne coherent atmospheric wind sensor (MACAWS) instrument: recent upgrades and results

James Howell, Jeffrey Rothermel, David Tratt, Dean Cutten, Lisa Darby, R. Michael Hardesty

Proceedings Volume 3757, (1999) https://doi.org/10.1117/12.366431

KEYWORDS: LIDAR, Sensors, Clouds, Doppler effect, Reflectivity, Atmospheric sensing, Signal detection, Backscatter, Ferroelectric materials, Wind measurement

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Proceedings Article | 12 November 1996 Paper

Overview of the first Multicenter Airborne Coherent Atmospheric Wind Sensor (MACAWS) experiment: conversion of a ground-based lidar for airborne applications

James Howell, R. Michael Hardesty, Jeffrey Rothermel, Robert Menzies

Proceedings Volume 2833, (1996) https://doi.org/10.1117/12.258146

KEYWORDS: Sensors, LIDAR, Signal detection, Atmospheric sensing, Signal processing, Transceivers, Optical benches, Scanners, Telescopes, Doppler effect

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Proceedings Article | 3 June 1994 Paper

Transportable Lidar for the measurement of ozone concentration and aerosol profiles in the lower troposphere

Yanzeng Zhao, James Howell, R. Michael Hardesty

Proceedings Volume 2112, (1994) https://doi.org/10.1117/12.177312

KEYWORDS: Ozone, LIDAR, Absorption, Aerosols, Ultraviolet radiation, Mirrors, Transmitters, Troposphere, Raman spectroscopy, Sensors

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Showing 5 of 10 publications

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