Center for Laser Sensing and Diagnostics (CSU CLSD)Capabilities & Access
expertisetopic area
In situ cavity ring-down spectroscopy of barium neutrals and ions in a BaO hollow cathode to validate cathode plasma models.
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Center for Laser Sensing and Diagnostics (CSU CLSD)Capabilities & Access
expertisegroup / labCSU research group on laser-based measurement of gases, plasmas and plasma-surface interactions for plasma science and electric propulsion, plus laser ignition, combustion diagnostics, high-power fiber delivery and environmental and health…
Center for Laser Sensing and Diagnostics (CSU CLSD)Physical Infrastructure
facilitylab / researchCSU Center for Laser Sensing and Diagnostics laboratory of about 2000 sq. ft. at the Powerhouse Energy Campus, with solid-state lasers, spectroscopic detection equipment and test beds for plasma and combustion experiments.
Center for Laser Sensing and Diagnostics (CSU CLSD)Capabilities & Access
expertisepersonDr. Azer P. Yalin, director of the CSU Center for Laser Sensing and Diagnostics (about 10 student researchers) and of the CSU NASA Space Grant program; Ph.D. in Mechanical and Aerospace Engineering, Princeton University.
Center for Laser Sensing and Diagnostics (CSU CLSD)Intellectual Property
ipissued patentRetiredUS patent 7,340,129 B2 for a fiber-laser-coupled optical spark delivery system that generates a spark from a laser beam delivered through a hollow fiber and launch focusing optics; inventors Yalin, Willson, Defoort, Joshi and Reynolds.
Center for Laser Sensing and Diagnostics (CSU CLSD)Physical Infrastructure
equipmentfield / airborne sensorFixed-wing and rotor drones used by CLSD as platforms for atmospheric sensing.
Center for Laser Sensing and Diagnostics (CSU CLSD)Intellectual Property
ippublished applicationRetiredUS patent application 2021/0349013 A1 for laser sensing of trace gases: determining species concentration from optical loss data collected over a range of frequencies with a spectroscopy system; inventor Azer P. Yalin.
Center for Laser Sensing and Diagnostics (CSU CLSD)Capabilities & Access
expertisetopic areaLaser Thomson scattering measurements of electron properties in Hall thruster plasmas, supporting high-power, long-life thruster development.
Center for Laser Sensing and Diagnostics (CSU CLSD)Capabilities & Access
expertisetopic areaResearch on pre-ionization to control laser plasma formation, aiming to make the plasma properties and ignition characteristics of laser ignition sources controllable.
TALIF of Neutral Krypton in a Hollow Cathode and Hall Thruster Plasma
Official page (opens in a new tab)Center for Laser Sensing and Diagnostics (CSU CLSD)Capabilities & Access
expertisetopic areaTwo-photon absorption laser-induced fluorescence (TALIF) of neutral krypton in hollow cathode and Hall thruster plasmas to study neutral particle dynamics and charge-exchange reactions that sputter thruster walls.
Transmission of laser pulses with high output beam quality using step-index fibers having large cladding
Official page (opens in a new tab)Center for Laser Sensing and Diagnostics (CSU CLSD)Intellectual Property
ipissued patentRetiredUS patent 8,740,432 B2 for transmitting high-beam-quality laser pulses through large-core step-index silica fibers whose thick cladding suppresses diffusion of modal power to higher-order modes; inventors Yalin and Joshi.
Center for Laser Sensing and Diagnostics (CSU CLSD)Physical Infrastructure
equipmentfield / airborne sensorTruck-mounted methane sensor used by CLSD for oil and gas emission measurements (pictured Feb. 2023).