Dr. Edward T. Knobbe Profile

Dr. Edward T. Knobbe

Director & CEO at Spectrum Photonics Inc

SPIE Involvement:

Author

Publications (18)

Proceedings Article | 15 June 2023 Presentation + Paper

Low mass LWIR hyperspectral imagers using microbolometers and Fabry-Perot interferometers

Paul Lucey, Jason Akagi, Kellen Yamamoto, Aaron Nagamine, Chiara Ferrari-Wong, Abigail Flom, Alaine Lee, Adam Bingham, Edward Knobbe

Proceedings Volume 12516, 125160V (2023) https://doi.org/10.1117/12.2663722

KEYWORDS: Sensors, Long wavelength infrared, Fourier transform interferometers, Microbolometers, Cameras, Imaging systems, Hyperspectral imaging, Signal to noise ratio, Quartz, Fabry–Perot interferometry

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Proceedings Article | 14 June 2023 Presentation

HyCARS: hyperspectral chemical airborne reconnaissance sensor for unmanned platforms

Adam Bingham, Edward Knobbe, Jason Akagi, Kellen Yamamoto, Paul Lucey, Alan Samuels, Michael von Fahnestock

Proceedings Volume PC12519, PC125190E (2023) https://doi.org/10.1117/12.2661551

KEYWORDS: Sensors, Airborne reconnaissance, Long wavelength infrared, Zoom lenses, Imaging systems, Hyperspectral imaging, Target detection, System integration, Switching, Superlattices

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Proceedings Article | 9 June 2017 Presentation

Compact LWIR sensors using spatial interferometric technology (Conference Presentation)

Adam Bingham, Paul Lucey, Edward Knobbe

Proceedings Volume 10210, 102100M (2017) https://doi.org/10.1117/12.2262414

KEYWORDS: Sensors, Long wavelength infrared, Interferometry, Photonics, Range imaging, Thermography, Microbolometers, Cryogenics, Imaging systems, Infrared imaging

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Proceedings Article | 3 June 2015 Paper

Detection and direct identification of liquid contaminants at standoff distances with an imaging polarimetric spectrometer

Eugene Tsiang, Adam Oberbeck, Jason Akagi, Ed Knobbe

Proceedings Volume 9482, 94820Y (2015) https://doi.org/10.1117/12.2184493

KEYWORDS: Liquids, Refractive index, Aluminum, Polarization, Reflection, Polarimetry, Reflectivity, Spectroscopy, Remote sensing, Ellipsometry

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Proceedings Article | 21 May 2014 Paper

LWIR hyperspectral micro-imager for detection of trace explosive particles

Adam Bingham, Paul Lucey, Jason Akagi, John Hinrichs, Edward Knobbe

Proceedings Volume 9101, 91010Z (2014) https://doi.org/10.1117/12.2050824

KEYWORDS: Long wavelength infrared, Particles, Explosives, Reflectivity, Explosives detection, Raman spectroscopy, Spatial resolution, Sensors, Infrared spectroscopy, Imaging systems

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Proceedings Article | 21 May 2014 Paper

A compact Fourier transform imaging spectrometer employing a variable gap Fabry-Perot interferometer

Paul Lucey, Jason Akagi, Adam Bingham, John Hinrichs, Edward Knobbe

Proceedings Volume 9101, 910110 (2014) https://doi.org/10.1117/12.2050826

KEYWORDS: Fourier transforms, Sensors, Imaging systems, Long wavelength infrared, Spectroscopy, Interferometers, Cameras, Relays, Fabry–Perot interferometry, Potassium

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Proceedings Article | 20 April 2010 Paper

Combined pre-concentration and real-time in-situ chemical detection of explosives in the marine environment

Matthew Dock, Ross Harper, Ed Knobbe

Proceedings Volume 7678, 76780U (2010) https://doi.org/10.1117/12.850727

KEYWORDS: Explosives, Sensors, Water, Chemical analysis, Environmental sensing, Molecules, Polymers, Oceanography, Ocean optics, Target detection

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Proceedings Article | 19 February 2003 Paper

Femtosecond studies of highly excited electrons and surface modification in metals

Kai Dou, B. Irwin, Robert Parkhill, Edward Knobbe

Proceedings Volume 4830, (2003) https://doi.org/10.1117/12.486601

KEYWORDS: Metals, Laser ablation, Electrons, Femtosecond phenomena, Pulsed laser operation, Aluminum, Ultrafast phenomena, Laser processing, Scanning electron microscopy, Laser-matter interactions

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Proceedings Article | 29 June 2001 Paper

Surface modification of aluminum alloy 2024-T3 via femtosecond pulse laser irradiation

Kai Dou, Robert Parkhill, Kenneth Church, Edward Knobbe

Proceedings Volume 4274, (2001) https://doi.org/10.1117/12.432551

KEYWORDS: Laser ablation, Pulsed laser operation, Metals, Aluminum, Femtosecond phenomena, Electrons, Laser irradiation, Excimer lasers, Laser processing, Laser-matter interactions

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Proceedings Article | 4 May 2000 Paper

Femtosecond pulse laser ablation and surface modification of aluminum alloy 2024

Kai Dou, Robert Parkhill, Edward Knobbe

Proceedings Volume 3931, (2000) https://doi.org/10.1117/12.384297

KEYWORDS: Laser ablation, Pulsed laser operation, Aluminum, Metals, Femtosecond phenomena, Scanning electron microscopy, Photomicroscopy, Ultrafast phenomena, Laser processing, Excimer lasers

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Proceedings Article | 2 May 2000 Paper

Photo-upconverted emission and optical limiting in fullerene complex-doped sol-gel films

Kai Dou, Edward Knobbe, Joshua Du

Proceedings Volume 3943, (2000) https://doi.org/10.1117/12.384337

KEYWORDS: Absorption, Optical limiting, Fullerenes, Nonlinear optics, Silicon, Luminescence, Information operations, Sol-gels, Visible radiation, Light

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Proceedings Article | 30 August 1999 Paper

Femtosecond-pulse laser ablation and surface microstructuring of aluminum alloy 2024

Kai Dou, Robert Parkhill, Edward Knobbe

Proceedings Volume 3874, (1999) https://doi.org/10.1117/12.361249

KEYWORDS: Laser ablation, Pulsed laser operation, Metals, Femtosecond phenomena, Aluminum, Ultrafast phenomena, Laser processing, Laser irradiation, Laser damage threshold, Laser energy

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Proceedings Article | 2 October 1997 Paper

Nonlinear absorption and emission of excited states in metalloporphyrin-doped sol gels

Kai Dou, Xiaodong Sun, Xiao-jun Wang, Edward Knobbe

Proceedings Volume 3136, (1997) https://doi.org/10.1117/12.279172

KEYWORDS: Absorption, Luminescence, Sol-gels, Electrons, Ions, Metals, Optical limiting, Molecules, Zinc, Silicon

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Proceedings Article | 31 March 1997 Paper

Optical characterization of binary, tertiary, and quaternary II-VI semiconductor thin films prepared by pulsed excimer laser deposition

Lowell Matthews, Robert Parkhill, Edward Knobbe

Proceedings Volume 2992, (1997) https://doi.org/10.1117/12.270084

KEYWORDS: Semiconductors, Absorption, Zinc, Thin films, Excimer lasers, Silica, Binary data, Semiconductor lasers, Pulsed laser deposition, Absorption spectroscopy

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Proceedings Article | 31 March 1997 Paper

Surface texturing of aluminum alloy 2024 via excimer laser irradiation

Robert Parkhill, Edward Knobbe

Proceedings Volume 2992, (1997) https://doi.org/10.1117/12.270085

KEYWORDS: Particles, Metals, Laser damage threshold, Photomicroscopy, Laser irradiation, Scanning electron microscopy, Surface finishing, Laser ablation, Excimer lasers, Aluminum

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Proceedings Article | 5 April 1996 Paper

Detection and characterization of chemical-induced abnormal tissue and rat tumors at different stages using fluorescence spectroscopy

Wei Chen, Baha Jassemnejad, Jason Crull, Edward Knobbe, Robert Nordquist

Proceedings Volume 2679, (1996) https://doi.org/10.1117/12.237570

KEYWORDS: Tissues, Tumors, Liver, Tissue optics, Solids, Testis, Cadmium, Kidney, Fluorescence spectroscopy, Skin

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Proceedings Article | 13 October 1994 Paper

Excited-state absorption and radiative up-conversion in porphyrin-doped gels

X. Wang, L. Yates, Edward Knobbe

Proceedings Volume 2288, (1994) https://doi.org/10.1117/12.188960

KEYWORDS: Absorption, Sol-gels, Luminescence, Nonlinear optics, Molecules, Dye lasers, Photons, Solids, Nonlinear dynamics, Beam splitters

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Proceedings Article | 18 August 1992 Paper

CdS-doped ormosils as nonlinear optical materials

Chia-Yen Li, Matthew Wilson, Nancy Haegel, John Mackenzie, Edward Knobbe, Cindy Porter, Roger Reeves

Proceedings Volume 1692, (1992) https://doi.org/10.1117/12.138064

KEYWORDS: Cadmium sulfide, Particles, Absorption, Semiconductors, Microcrystalline materials, Quantum dots, Luminescence, Sol-gels, Matrices, Waveguides

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Showing 5 of 18 publications

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