Brian Bentz
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View article: Electron density measurements and calculations in a helium capacitively-coupled radio-frequency plasma
Electron density measurements and calculations in a helium capacitively-coupled radio-frequency plasma Open
We report a comparison of inferred electron density ( ) in a He capacitively-coupled plasma, deduced from laser-collision induced fluorescence measurements, with values computed using a hybrid simulation framework based on particle-…
View article: Measurement of atomic oxygen densities using TALIF on a dielectric barrier discharge: insights into the volume above a micro cavity plasma array
Measurement of atomic oxygen densities using TALIF on a dielectric barrier discharge: insights into the volume above a micro cavity plasma array Open
Dielectric barrier discharges, particularly micro cavity plasma arrays, offer significant potential for plasma-catalytic research due to their ability to ignite plasma in direct contact with a catalytic surface, enabling the observation of…
View article: SUPER-RESOLUTION IMAGING AND SENSING WITH RELATIVE MOTION IN STRUCTURED ILLUMINATION AND MULTIPLY SCATTERED LIGHT
SUPER-RESOLUTION IMAGING AND SENSING WITH RELATIVE MOTION IN STRUCTURED ILLUMINATION AND MULTIPLY SCATTERED LIGHT Open
View article: Mapping electron density with laser collision induced fluorescence in a helium capacitively coupled radio frequency plasma
Mapping electron density with laser collision induced fluorescence in a helium capacitively coupled radio frequency plasma Open
View article: Data set of fully kinetic simulations of capacitively coupled plasma discharges in argon for development of surrogate models
Data set of fully kinetic simulations of capacitively coupled plasma discharges in argon for development of surrogate models Open
View article: Vacuum ultraviolet emission in low pressure capacitively coupled argon discharges
Vacuum ultraviolet emission in low pressure capacitively coupled argon discharges Open
View article: Measurement of Atomic Oxygen Densities Using TALIF in Dielectric Barrier Discharge: Insights into the effluent of a micro cavity plasma array
Measurement of Atomic Oxygen Densities Using TALIF in Dielectric Barrier Discharge: Insights into the effluent of a micro cavity plasma array Open
View article: Machine Learning of Plasma Science for Next Generation Microelectronics (Project Final Report)
Machine Learning of Plasma Science for Next Generation Microelectronics (Project Final Report) Open
View article: Spatially resolved measurements of electron density of a magnetically confined split-ring resonator source
Spatially resolved measurements of electron density of a magnetically confined split-ring resonator source Open
Laser-collisional induced fluorescence is used to study the plasma generated by a split-ring resonator discharge under an external cusp shaped magnetic field created by permanent magnets. The electron density and electron temperature are m…
View article: Electron density measurements and calculations in a helium capacitively-coupled radio-frequency plasma
Electron density measurements and calculations in a helium capacitively-coupled radio-frequency plasma Open
View article: Detecting atomic oxygen in a micro plasma using complementary optical diagnostics
Detecting atomic oxygen in a micro plasma using complementary optical diagnostics Open
View article: Correction: Solar-Thermal Testing of Ablator Materials in an Atomic Oxygen Plasma
Correction: Solar-Thermal Testing of Ablator Materials in an Atomic Oxygen Plasma Open
View article: Mapping and imaging ionizing radiation in two and three dimensions
Mapping and imaging ionizing radiation in two and three dimensions Open
A two-dimensional imaging system and a two-dimensional or three-dimensional optical tomographic mapping system, each employing gas scintillation induced by ionizing radiation, i.e., radioluminescence, and corresponding methods, are disclos…
View article: Tomographic optical emission spectroscopy of atmospheric pressure plasma interacting with complex surfaces
Tomographic optical emission spectroscopy of atmospheric pressure plasma interacting with complex surfaces Open
Plasma distribution in 3D space is heavily influenced by complex surfaces and the coupling interactions between plasma properties and interfacing material properties. For example, guided streamers that transition to surface ionization wave…
View article: Pulsed laser induced photoemission and its effects in plasma discharge
Pulsed laser induced photoemission and its effects in plasma discharge Open
View article: Tomographic optical emission spectroscopy of an atmospheric pressure plasma jet and surface ionization waves on planar and structured surfaces
Tomographic optical emission spectroscopy of an atmospheric pressure plasma jet and surface ionization waves on planar and structured surfaces Open
In this paper, an approach for 3D plasma structure diagnostics using tomographic optical emission spectroscopy (Tomo-OES) of a nanosecond pulsed atmospheric pressure plasma jet (APPJ) is presented. In contrast to the well-known Abel invers…
View article: Pulsed photoemission induced plasma breakdown
Pulsed photoemission induced plasma breakdown Open
This article characterises the effects of cathode photoemission leading to electrical discharges in an argon gas. We perform breakdown experiments under pulsed laser illumination of a flat cathode and observe Townsend to glow discharge tra…
View article: Spatiotemporal measurements of striations in a glow discharge’s positive column using laser-collisional induced fluorescence
Spatiotemporal measurements of striations in a glow discharge’s positive column using laser-collisional induced fluorescence Open
We have observed the behavior of striations caused by ionization waves propagating in low-pressure helium DC discharges using the non-invasive laser-collision induced fluorescence (LCIF) diagnostic. To achieve this, we developed an analyti…
View article: Influence of NaCl concentration on the optical scattering properties of water-based aerosols
Influence of NaCl concentration on the optical scattering properties of water-based aerosols Open
We present the characterization of several atmospheric aerosol analogs in a tabletop chamber and an analysis of how the concentration of NaCl present in these aerosols influences their bulk optical properties. Atmospheric aerosols (e.g., f…
View article: Large RF plasma data set for training plasma processing machine learning models
Large RF plasma data set for training plasma processing machine learning models Open
View article: Characterization of Plasma Breakdown Induced by Pulsed Photoemission
Characterization of Plasma Breakdown Induced by Pulsed Photoemission Open
View article: Tomographic Optical Imaging of a Pulsed Atmospheric Pressure Plasma Jet
Tomographic Optical Imaging of a Pulsed Atmospheric Pressure Plasma Jet Open
View article: Increased range and contrast in fog with circularly polarized imaging
Increased range and contrast in fog with circularly polarized imaging Open
Fogs, low lying clouds, and other highly scattering environments pose a challenge for many commercial and national security sensing systems. Current autonomous systems rely on optical sensors for navigation whose performance is degraded by…
View article: Photoemission Induced Plasma Breakdown (Update)
Photoemission Induced Plasma Breakdown (Update) Open
Laser-induced photoemission of electrons offers opportunities to trigger and control plasmas and discharges. However, the underlying mechanisms are not sufficiently characterized to be fully utilized. Photoemission is highly nonlinear, ach…
View article: Developing and Characterizing an Inexpensive Tabletop Cloud Chamber.
Developing and Characterizing an Inexpensive Tabletop Cloud Chamber. Open
View article: SNL Plasma Research Facility (PRF).
SNL Plasma Research Facility (PRF). Open
View article: SPRF: Photoemission Induced Plasma Breakdown in Argon.
SPRF: Photoemission Induced Plasma Breakdown in Argon. Open
View article: Tomographic Optical Imaging of a Pulsed Atmospheric Pressure Plasma Jet.
Tomographic Optical Imaging of a Pulsed Atmospheric Pressure Plasma Jet. Open
View article: Computational Imaging for Intelligence in Highly Scattering Aerosols (Final Report)
Computational Imaging for Intelligence in Highly Scattering Aerosols (Final Report) Open
Natural and man-made degraded visual environments pose major threats to national security. The random scattering and absorption of light by tiny particles suspended in the air reduces situational awareness and causes unacceptable down-time…
View article: Optical Characterization of Atmospheric Aerosols in a Tabletop Chamber.
Optical Characterization of Atmospheric Aerosols in a Tabletop Chamber. Open