Dr. W. Joseph Thomes Profile

Dr. W. Joseph Thomes

at NASA Goddard Space Flight Ctr

SPIE Involvement:

Author

Area of Expertise:

Photonics , Fiber Optics , Lasers , Spaceflight

Publications (32)

Proceedings Article | 12 March 2024 Presentation + Paper

Presentation + Paper

Performance of the dragonfly mass spectrometer (DraMS) programmable UV laser source engineering test unit (ETU)

D. Barry Coyle, Paul Stysley, Bryan James, Erich Frese, Kristen Washington, Amandeep Kaur, Timothy Petry, William Halaburda, Matthew Mullin, Michael Hersh, Melissa Trainer, Guruthisvaran Ramu, W. Joe Thomes, Eric Lyness, Juan Lander, Sandra Irish, Draisy Friedman, Daniel Bae, Pete Mule, Jackie Bartel, Keith Kienzle, Laurie Seide, Peter Barfknecht, Marc Matyseck, Christian Zincke, M. Akif Ersahin, Kevin Smith, Richard Chuska, Raymond Disilvestre

Proceedings Volume 12864, 1286409 (2024) https://doi.org/10.1117/12.3009989

KEYWORDS: Ultraviolet radiation, Semiconductor lasers, Laser energy, Pulsed laser operation, Laser optics, Equipment, Vibration, Spectroscopy, Laser development, Laser systems engineering

Read Abstract +

Proceedings Article | 8 March 2023 Presentation + Paper

Presentation + Paper

Technology development of a solid state 266 nm laser for NASA’s Dragonfly mission

Matthew Mullin, D. Barry Coyle, Paul Stysley, Melissa Trainer, Michael Hersh, Bryan James, Guruthisvaran Ramu, Kristen Washington, W. Joe Thomes, Erich Frese, Eric Lyness, Juan Lander, M. Akif Ersahin, Peter Barfknecht, Pete Mule, Daniel Bae, Marc Matyseck, Timothy Petry, William Halaburda, Amandeep Kaur, Jackie Bartel, Keith Kienzle, Alejandro Rodriguez Perez, Jean-Marie Lauenstein, Kevin Smith, Richard Chuska

Proceedings Volume 12399, 123990E (2023) https://doi.org/10.1117/12.2650805

KEYWORDS: Semiconductor lasers, Ultraviolet radiation, Vibration, UV optics, Atmospheric optics, Laser optics, Spectroscopy, Laser radiation, Equipment, Pulsed laser operation

Read Abstract +

Proceedings Article | 3 October 2022 Paper

Paper

PACE OCI short-wave infrared detection assembly optical system design, alignment, and environmental test

James Champagne, Dallin Brailsford, Roy Esplin, Jacob Hedelius, Trent Newswander, James Peterson, Tyrel Rupp, Kenneth Squire, Eric Gorman, Emily Kan, D. Brent Mott, Luis Ramos-Izquierdo, Joe Thomes, Ulrik Gliese

Proceedings Volume 12222, 1222204 (2022) https://doi.org/10.1117/12.2633631

KEYWORDS: Sensors, Optical alignment, Geometrical optics, Optical design, Ocean optics, Channel projecting optics, Tolerancing, Signal detection, Optical filters, Short wave infrared radiation

Read Abstract +

Proceedings Article | 2 March 2020 Paper

Paper

Space-flight LiDARs, navigation, and science instrument implementations: lasers, optoelectronics, integrated photonics, fiber optic subsystems, and components

Cameron Parvini, Hali Jakeman, W. Joe Thomes, Eleanya Onuma, Melanie Ott

Proceedings Volume 11287, 112870I (2020) https://doi.org/10.1117/12.2547352

KEYWORDS: Photonics, Cryogenics, Sensors, Light emitting diodes, LIDAR, Optical fibers, Optoelectronics, Photonic integrated circuits, Space based lasers, Spaceflight missions

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Proceedings Article | 9 September 2019 Paper

Paper

Optical system design and integration of the Global Ecosystem Dynamics Investigation Lidar

Shane Wake, Bente Eegholm, Luis Ramos-Izquierdo, Peter Dogoda, Zachary Denny, Michael Hersh, Michael Mulloney, W. Joe Thomes, Demetrios Poulios, Melanie Ott, Peter Mule, Hali Jakeman, Erich de Leon, J. Bryan Blair

Proceedings Volume 11128, 111280J (2019) https://doi.org/10.1117/12.2530653

KEYWORDS: Transmitters, Receivers, Fiber optics, Sensors, Beam expanders, Optical fabrication, Optical alignment, Optical design, Collimators, Telescopes, LIDAR, Remote sensing system design, Active remote sensing, Remote sensing

Read Abstract +

Proceedings Article | 21 November 2017 Open Access

Open Access

Paper

The optical fiber array bundle assemblies for the NASA lunar reconnaissance orbiter; evaluation lessons learned for flight implementation from the NASA electronic parts and packaging program

Melanie Ott, Richard Chuska, Frank LaRocca, Shawn MacMurphy, Robert Switzer, Lance Day, William Thomes

Proceedings Volume 10566, 1056618 (2017) https://doi.org/10.1117/12.2308221

Read Abstract +

Proceedings Article | 20 November 2017 Open Access

Open Access

Paper

Development and qualification of a fiber optic cable for Martian environments

C. Lindensmith, W. T. Roberts, M. Meacham, M. Ott, F. LaRocca, W. J. Thomes

Proceedings Volume 10565, 1056519 (2017) https://doi.org/10.1117/12.2309109

Read Abstract +

Proceedings Article | 20 November 2017 Open Access

Open Access

Paper

Multi-mode optical fibers for connecting space-based spectrometers

W. T. Roberts, E. Motts, F. LaRocca, J. Thomes, C. Lindenmisth, S. Bender, E. Miller, M. Ott

Proceedings Volume 10565, 105651A (2017) https://doi.org/10.1117/12.2309137

KEYWORDS: Spectrometers, Optical fibers, Cladding, Astronomical imaging, Laser induced breakdown spectroscopy, Raman spectroscopy, Head, Light scattering, Silica, Plasma

Read Abstract +

Laser spectral analysis systems are increasingly being considered for in situ analysis of the atomic and molecular composition of selected rock and soil samples on other planets [1][2][3]. Both Laser Induced Breakdown Spectroscopy (LIBS) and Raman spectroscopy are used to identify the constituents of soil and rock samples in situ. LIBS instruments use a high peak-power laser to ablate a minute area of the surface of a sample. The resulting plasma is observed with an optical head, which collects the emitted light for analysis by one or more spectrometers. By identifying the ion emission lines observed in the plasma, the constituent elements and their abundance can be deduced. In Raman spectroscopy, laser photons incident on the sample surface are scattered and experience a Raman shift, exchanging small amounts of energy with the molecules scattering the light. By observing the spectrum of the scattered light, it is possible to determine the molecular composition of the sample.

For both types of instruments, there are advantages to physically separating the light collecting optics from the spectroscopy optics. The light collection system will often have articulating or rotating elements to facilitate the interrogation of multiple samples with minimum expenditure of energy and motion. As such, the optical head is often placed on a boom or an appendage allowing it to be pointed in different directions or easily positioned in different locations. By contrast, the spectrometry portion of the instrument is often well-served by placing it in a more static location. The detectors often operate more consistently in a thermally-controlled environment. Placing them deep within the spacecraft structure also provides some shielding from ionizing radiation, extending the instrument’s useful life. Finally, the spectrometry portion of the instrument often contains significant mass, such that keeping it off of the moving portion of the platform, allowing that portion to be significantly smaller, less massive and less robust.

Large core multi-mode optical fibers are often used to accommodate the optical connection of the two separated portions of such instrumentation. In some cases, significant throughput efficiency improvement can be realized by judiciously orienting the strands of multi-fiber cable, close-bunching them to accommodate a tight focus of the optical system on the optical side of the connection, and splaying them out linearly along a spectrometer slit on the other end.

For such instrumentation to work effectively in identifying elements and molecules, and especially to produce accurate quantitative results, the spectral throughput of the optical fiber connection must be consistent over varying temperatures, over the range of motion of the optical head (and it’s implied optical cable stresses), and over angle-aperture invariant of the total system. While the first two of these conditions have been demonstrated[4], spectral observations of the latter present a cause for concern, and may have an impact on future design of fiber-connected LIBS and Raman spectroscopy instruments. In short, we have observed that the shape of the spectral efficiency curve of a large multi-mode core optical fiber changes as a function of input angle.

Proceedings Article | 20 November 2017 Open Access

Open Access

Paper

Fiber optic cables for transmission of high-power laser pulses in spaceflight applications

W. J. Thomes, M. Ott, R. Chuska, R. Switzer, D. Blair

Proceedings Volume 10565, 105651I (2017) https://doi.org/10.1117/12.2309144

KEYWORDS: Polishing, Fiber lasers, Laser damage threshold, Optical fiber cables, High power lasers, Optics manufacturing, Gas lasers, Space operations, Glasses, Astronomical imaging

Read Abstract +

Proceedings Article | 19 September 2016 Paper

Paper

Cryogenic fiber optic assemblies for spaceflight environments: design, manufacturing, testing, and integration

W. Joe Thomes, Melanie Ott, Richard Chuska, Robert Switzer, Eleanya Onuma, Diana Blair, Erich Frese, Marc Matyseck

Proceedings Volume 9981, 99810F (2016) https://doi.org/10.1117/12.2238579

KEYWORDS: Fiber optics, Optical fabrication, Optics manufacturing, James Webb Space Telescope, Cryogenics, Fiber optics tests, Reliability, Manufacturing, Connectors, Interfaces

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Proceedings Article | 19 September 2016 Paper

Paper

The fiber optic system for the advanced topographic laser altimeter system instrument (ATLAS)

Eleanya Onuma, Robert Switzer, Richard Chuska, Melanie Ott, W. Joe Thomes, Diana Blair, Erich Frese, Marc Matyseck

Proceedings Volume 9981, 99810C (2016) https://doi.org/10.1117/12.2238561

KEYWORDS: Fiber optics, Receivers, Fiber lasers, Optical fibers, Optical fabrication, Connectors, Telescopes, Space telescopes, Calibration, Data modeling

Read Abstract +

The Advanced Topographic Laser Altimeter System (ATLAS) Instrument has been in integration and testing over the past 18 months in preparation for the Ice, Cloud and Land Elevation Satellite – 2 (ICESat-2) Mission, scheduled to launch in 2017. ICESat-2 is the follow on to ICESat which launched in 2003 and operated until 2009. ATLAS will measure the elevation of ice sheets, glaciers and sea ice or the “cryosphere” (as well as terrain) to provide data for assessing the earth’s global climate changes. Where ICESat’s instrument, the Geo-Science Laser Altimeter (GLAS) used a single beam measured with a 70 m spot on the ground and a distance between spots of 170 m, ATLAS will measure a spot size of 10 m with a spacing of 70 cm using six beams to measure terrain height changes as small as 4 mm.[1] The ATLAS pulsed transmission system consists of two lasers operating at 532 nm with transmitter optics for beam steering, a diffractive optical element that splits the signal into 6 separate beams, receivers for start pulse detection and a wavelength tracking system. The optical receiver telescope system consists of optics that focus all six beams into optical fibers that feed a filter system that transmits the signal via fiber assemblies to the detectors. Also included on the instrument is a system that calibrates the alignment of the transmitted pulses to the receiver optics for precise signal capture. The larger electro optical subsystems for transmission, calibration, and signal receive, stay aligned and transmitting sufficiently due to the optical fiber system that links them together. The robust design of the fiber optic system, consisting of a variety of multi fiber arrays and simplex assemblies with multiple fiber core sizes and types, will enable the system to maintain consistent critical alignments for the entire life of the mission. Some of the development approaches used to meet the challenging optical system requirements for ATLAS are discussed here.

Proceedings Article | 4 August 2016 Paper

Paper

iLocater: a diffraction-limited Doppler spectrometer for the Large Binocular Telescope

Andrew Bechter, Eric Bechter, Ryan Ketterer, Justin Crepp, Jonathan Crass, Robert Reynolds, Philip Hinz, Derek Kopon, David Cavalieri, Louis Fantano, Corina Koca, Eleanya Onuma, Karl Stapelfeldt, Joseph Thomes, Sheila Wall, Steven Macenka, James McGuire, Joshua Eisner, B Gaudi, Fred Hearty, Kaitlin Kratter, Marc Kuchner, Giusi Micela, Matthew Nelson, Isabella Pagano, Andreas Quirrenbach, Christian Schwab, Michael Skrutskie, Alessandro Sozzetti, Charles Woodward, Bo Zhao, Ronald Korniski, Leonard Zugby, David King

Proceedings Volume 9908, 990819 (2016) https://doi.org/10.1117/12.2233135

KEYWORDS: Adaptive optics, Doppler effect, Spectroscopy, Telescopes, Spectrographs, Adaptive optics, Space telescopes, Spectral resolution, Cameras, Single mode fibers, Planets

Read Abstract +

Proceedings Article | 18 July 2014 Paper

Paper

JWST ASPA fiber optic development for testing at 2.12 µm

Ben Gallagher, Scott Knight, Allison Barto, Joe Thomes, Melanie Ott

Proceedings Volume 9151, 91515W (2014) https://doi.org/10.1117/12.2055031

KEYWORDS: James Webb Space Telescope, Cryogenics, Optical testing, Fiber optics tests, Fiber optics, Optical fiber cables, Adaptive optics, Neodymium, Signal attenuation, Space telescopes

Read Abstract +

Proceedings Article | 14 September 2011 Paper

Paper

Small form factor optical fiber connector evaluation for harsh environments

Diana Blair, W. Joe Thomes, Richard Chuska, Robert Switzer, Melanie Ott

Proceedings Volume 8164, 81640E (2011) https://doi.org/10.1117/12.895961

KEYWORDS: Connectors, Diamond, Optical fibers, Optical fabrication, Single mode fibers, Packaging, Manufacturing, Multimode fibers, Laser drilling, Assembly tolerances

Read Abstract +

Proceedings Article | 14 September 2011 Paper

Paper

Fiber optic cables for transmission of high-power laser pulses

Melanie Ott, Diana Blair, W. Joe Thomes, Robert Switzer, Richard Chuska

Proceedings Volume 8164, 81640F (2011) https://doi.org/10.1117/12.895964

KEYWORDS: Polishing, Fiber lasers, High power lasers, Laser damage threshold, Connectors, Pulsed laser operation, Optical fiber cables, Inspection, Explosives, Metals

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Proceedings Article | 14 September 2011 Paper

Paper

Proton radiation testing of laser optical components for NASA Jupiter Europa Orbiter Mission

W. Joe Thomes, Melanie Ott, John Cavanaugh

Proceedings Volume 8164, 816403 (2011) https://doi.org/10.1117/12.895816

KEYWORDS: Jupiter, Ceramics, Bandpass filters, Optical components, Nd:YAG lasers, Transmittance, Crystals, Laser optics, Signal attenuation, Q switch crystals

Read Abstract +

Proceedings Article | 3 September 2008 Paper

Paper

Fiber optic cable thermal preparation to ensure stable operation

Frank LaRocca, Melanie Ott, Robert Switzer, William Thomes, Shawn Macmurphy, Richard Chuska

Proceedings Volume 7070, 70700B (2008) https://doi.org/10.1117/12.796977

KEYWORDS: Optical fiber cables, Connectors, Single mode fibers, Temperature metrology, Manufacturing, Coating, Sensors, Transmittance, Fiber coatings, Polymers

Read Abstract +

Proceedings Article | 3 September 2008 Paper

Paper

Vibration performance comparison study on current fiber optic connector technologies

Richard Chuska, Frank LaRocca, Shawn Macmurphy, Melanie Ott, William Thomes, Robert Switzer

Proceedings Volume 7070, 70700A (2008) https://doi.org/10.1117/12.796644

KEYWORDS: Connectors, Shape memory alloys, Fiber optics, Polishing, Metals, Optical fiber cables, Fiber optics tests, Step index fibers, Ceramics, Inspection

Read Abstract +

Proceedings Article | 3 September 2008 Paper

Paper

Applications of optical fiber assemblies in harsh environments: the journey past, present, and future

Frank LaRocca, Shawn Macmurphy, Richard Chuska, Melanie Ott, Robert Switzer, William Joe Thomes

Proceedings Volume 7070, 707009 (2008) https://doi.org/10.1117/12.797021

KEYWORDS: Optical fibers, Connectors, Optical fabrication, Ranging, Telecommunications, Fiber lasers, Optics manufacturing, Space telescopes, Mercury, Fiber optics

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Proceedings Article | 26 August 2008 Paper

Paper

Temperature and dose-rate effects in gamma irradiated rare-earth doped fibers

K. Simmons-Potter, D. Kliner, D. Meister, W. Thomes, B. Fox, R. Bambha

Proceedings Volume 7095, 70950B (2008) https://doi.org/10.1117/12.795595

KEYWORDS: Optical fibers, Transmittance, Ocean optics, Absorption, Xenon, Spectroscopy, Silicon, Erbium, Ytterbium, Fiber amplifiers

Read Abstract +

Proceedings Article | 26 August 2008 Paper

Paper

Development, qualification, and integration of the optical fiber array assemblies for the Lunar Reconnaissance Orbiter

Melanie Ott, Frank LaRocca, Shawn MacMurphy, Richard Chuska, Robert Switzer, William Joe Thomes

Proceedings Volume 7095, 70950P (2008) https://doi.org/10.1117/12.797216

KEYWORDS: Ranging, Optical fibers, Fiber lasers, Optical fabrication, Optical arrays, Connectors, Fiber optics, Antennas, Space telescopes, Telescopes

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Proceedings Article | 14 April 2008 Paper

Paper

Overview of Sandia's fiber laser program

Alexandra Hoops, G. Ronald Hadley, Randal Schmitt, Binh Do, Ray Bambha, W. Joseph Thomes, Joseph Simmons, Wen Hsu, Paul Schrader, Jean-Philippe Fève, Mircea Hotoleanu, Georg Wien, Arlee Smith, Jeffrey Koplow, Andrea Hansen, Hanna Hoffman, Joona Koponen, Brian Fox, Dahv A. Kliner, Mikko Söderlund, Kelly Simmons-Potter, Sean Moore, Roger Farrow

Proceedings Volume 6952, 695202 (2008) https://doi.org/10.1117/12.782227

KEYWORDS: Fiber amplifiers, Diodes, Fiber lasers, Optical amplifiers, 3D modeling, Nonlinear dynamics, Optical damage, Performance modeling, Optical filters, Optical pumping

Read Abstract +

Proceedings Article | 22 February 2008 Paper

Paper

Radiation damage effects in doped fiber materials

R. Bambha, K. Simmons-Potter, B. Fox, J. Simmons, W. Thomes, D. Kliner

Proceedings Volume 6873, 68731F (2008) https://doi.org/10.1117/12.778764

KEYWORDS: Transmittance, Ocean optics, Radiation effects, Silicon, Absorption, Optical fibers, Gamma radiation, Resistance, Near infrared, Spectroscopy

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Proceedings Article | 26 September 2007 Paper

Paper

Investigation of radiation-induced photodarkening in passive erbium-, ytterbium-, and Yb/Er co-doped optical fibers

K. Simmons-Potter, D. A. Kliner, W. Thomes, J. Simmons, B. Fox, R. Bambha

Proceedings Volume 6713, 67130R (2007) https://doi.org/10.1117/12.735212

KEYWORDS: Optical fibers, Transmittance, Ocean optics, Gamma radiation, Absorption, Silicon, Resistance, Spectroscopy, Erbium, Color centers

Read Abstract +

Proceedings Article | 26 September 2007 Paper

Paper

Space flight qualification on a novel five-fiber array assembly for the lunar orbiter laser altimeter (LOLA) at NASA Goddard Space Flight Center

Frank LaRocca, William Thomes, Shawn Macmurphy, Steve Schmidt, Melanie Ott, Robert Switzer, Richard Chuska, Adam Matuszeski, Xiaodan Linda Jin

Proceedings Volume 6713, 67130S (2007) https://doi.org/10.1117/12.734021

KEYWORDS: Connectors, Phase modulation, Diamond, Signal attenuation, Manufacturing, Sensors, Optical fabrication, Gamma radiation, Lamps, Optical fibers

Read Abstract +

Proceedings Article | 26 September 2007 Paper

Paper

Investigation of hermetically sealed commercial LiNbO₃ optical modulator for use in laser/LIDAR space-flight applications

Melanie Ott, William Thomes, Xiaodan Linda Jin, Shawn MacMurphy, Frank LaRocca, Tracee Jamison, Richard Chuska

Proceedings Volume 6713, 67130T (2007) https://doi.org/10.1117/12.732525

KEYWORDS: Modulators, Waveguides, Gamma radiation, Optical modulators, Commercial off the shelf technology, Fiber lasers, Crystals, Imaging systems, Optical components, Photodiodes

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Proceedings Article | 13 September 2007 Paper

Paper

Optically powered firing set using miniature photovoltaic arrays

Fred Dickey, William Thomes, Jason Shelton

Proceedings Volume 6662, 666206 (2007) https://doi.org/10.1117/12.736907

KEYWORDS: Capacitors, Semiconductor lasers, Resistance, Transformers, Mathematical modeling, Photovoltaics, Fiber coupled lasers, Performance modeling, Safety, Diodes

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Proceedings Article | 13 September 2007 Paper

Paper

Impact of ionizing radiation on the optical properties of YAG laser materials

A. Vaddigiri, D. Meister, W. Thomes, K. Simmons-Potter

Proceedings Volume 6662, 666204 (2007) https://doi.org/10.1117/12.736559

KEYWORDS: YAG lasers, Absorption, Spectroscopy, Nd:YAG lasers, Luminescence, Ionizing radiation, Neodymium, Optical properties, Rod lasers, Color centers

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Proceedings Article | 23 February 2007 Paper

Paper

Gamma radiation effects in Yb-doped optical fiber

Z. Schneider, K. Simmons-Potter, B. Fox, D. Meister, D. Kliner, R. Bambha, W. Thomes

Proceedings Volume 6453, 645328 (2007) https://doi.org/10.1117/12.712244

KEYWORDS: Transmittance, Silicon, Gamma radiation, Optical fibers, Fiber lasers, Ocean optics, Color centers, Ytterbium, Radiation effects, Spectroscopy

Read Abstract +

Determination of the radiation response of doped-fiber laser materials, systems and components to relevant ionizing radiation fluxes is central to the prediction of long-term fiber-based laser performance/survivability in adverse and/or space-based environments. It is well known that optical elements that are placed into orbit around the Earth experience harsh radiation environments that originate from trapped-particle belts, cosmic rays, and solar events. Of particular interest to optical materials is the continuous flux of gamma photons that the materials encounter. Such radiation exposure commonly leads to the formation of color centers in a broad range of optical materials. Such color center formation gives rise to changes in optical transmission, loss and luminescent band structure, and, thus, impacts long-term optical device performance. In this paper we will present the results of our investigation of gamma-radiation-induced photodarkening on the passive optical transmittance of a number of ytterbium- (Yb-) doped optical fibers. We will discuss the evolution of the optical response of the fiber across the 1.0 to 1.6 micron wavelength window with increasing gamma exposure. Results indicate that these fibers exhibit reasonable radiation resistance to gamma exposures typical of a 5-year, low-earth-orbit environment. Maximum transmittance losses of less than 10% were observed for total gamma exposures of 2-5 krad (Si). In this paper we will present the results of our investigation of gamma-radiation-induced photodarkening on the optical transmittance of a number of ytterbium- (Yb-) doped optical fibers. We will discuss the evolution of the optical response of the fiber across the 1.0 to 1.6 micron wavelength window with increasing gamma exposure. Results indicate that these fibers exhibit reasonable radiation resistance to gamma exposures typical of a 5-year, low-earth orbit environment. Maximum transmittance losses of less than 10% were observed for total gamma exposures of 2-5 krad (Si).

Proceedings Article | 1 September 2006 Paper

Paper

Photosensitive polysilane thin films for write-as-needed optical devices

K. Simmons-Potter, W. Thomes, B. Potter, G. Jamison

Proceedings Volume 6287, 628706 (2006) https://doi.org/10.1117/12.683677

KEYWORDS: Refractive index, Absorption, Thin films, Absorbance, Atmospheric optics, Ultraviolet radiation, UV optics, Polymers, Photosensitive materials, Optical components

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Proceedings Article | 19 August 2005 Paper

Paper

Design considerations for multi-fiber injection

F. Dickey, D. Brown, W. Thomes

Proceedings Volume 5871, 587106 (2005) https://doi.org/10.1117/12.619552

KEYWORDS: Optical fibers, Beam splitters, Diffraction gratings, Microlens array, Diffraction, Microlens, Homogenization, Etching, Energy efficiency, Beam homogenizers

Read Abstract +

Proceedings Article | 19 August 2005 Paper

Paper

Radiation-induced optical response of single-crystal and polycrystalline YAG

W. Thomes, D. Meister, K. Simmons-Potter, A. Vaddigiri

Proceedings Volume 5871, 587108 (2005) https://doi.org/10.1117/12.620304

KEYWORDS: YAG lasers, Gamma radiation, Transmittance, Charged particle optics, Color centers, Ceramics, Signal attenuation, Ionizing radiation, Crystals, Singular optics

Read Abstract +

Showing 5 of 32 publications

Proceedings Volume Editor (3)

SPIE Conference Volume | 13 September 2007

Optical Technologies for Arming, Safing, Fuzing, and Firing III

SPIE Conference Volume | 1 September 2006

Optical Technologies for Arming, Safing, Fuzing, and Firing II

SPIE Conference Volume | 2 September 2005

Optical Technologies for Arming, Safing, Fuzing, and Firing

Conference Committee Involvement (3)

Optical Technologies for Arming, Safing, Fuzing, and Firing III

29 August 2007 | San Diego, California, United States

Optical Technologies for Arming, Safing, Fuzing, and Firing II

14 August 2006 | San Diego, California, United States

Optical Technologies for Arming, Safing, Fuzing, and Firing

4 August 2005 | San Diego, California, United States

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