Search Results - "Perram, Glen P."

Remote Identification and Quantification of Industrial Smokestack Effluents via Imaging Fourier-Transform Spectroscopy by Gross, Kevin C, Bradley, Kenneth C, Perram, Glen P

“…Industrial smokestack plume emissions were remotely measured with a midwave infrared (1800−3000 cm−1) imaging Fourier-transform spectrometer operating at…”
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A pulsed, optically-pumped rubidium laser at high pump intensity by Sulham, Clifford V., Perram, Glen P., Wilkinson, Michael P., Hostutler, David A.

“…A rubidium laser operating at 795 nm is optically pumped by a pulsed titanium sapphire laser to investigate the dynamics of Diode Pumped Alkali Lasers (DPALs)…”
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Spectral Broadening Effects on Pulsed-Source Digital Holography by Owens, Steven A., Spencer, Mark F., Perram, Glen P.

“…Using a pulsed configuration, a digital-holographic system is setup in the off-axis image plane recording geometry, and spectral broadening via pseudo-random…”
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Shock front detachment during pulsed laser ablation of graphite by Calver, Timothy I., Shattan, Michael B., Perram, Glen P.

“…Pulsed laser ablation of pyrolytic graphite with a 5.7 J/cm 2 frequency-doubled Nd:YAG laser in backgrounds of argon, nitrogen, and mixed gas at pressures from…”
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Kinetics, evolving thermal properties, and surface ignition of carbon fiber reinforced epoxy composite during laser-induced decomposition by Herr, Nicholas C., Gonzales, Ashley E., Perram, Glen P.

“…The decomposition kinetics, heats of reaction, evolving thermal conductivity and emissivity, and surface ignition conditions of carbon fiber reinforced polymer…”
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Open-Path Atmospheric Transmission of Diode-Pumped Alkali Lasers in Maritime and Desert Environments by Rice, Christopher A., Pitz, Greg A., Guy, Matthew R., Perram, Glen P.

“…A tunable diode laser absorption spectroscopy (TDLAS) device has been developed to study long-path atmospheric transmission near diode pumped alkali laser…”
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Excitation of higher lying states in a potassium diode-pumped alkali laser by Wallerstein, A. J., Perram, Glen P., Rice, Christoper A.

“…A kinetic model for the performance of a potassium DPAL, including the role of higher lying states, is developed to assess the impact on device efficiency and…”
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Impacts of Laboratory Vibrations and Laser Flicker Noise on Digital Holography by Thornton, Douglas E., Spencer, Mark F., Rice, Christopher A., Perram, Glen P.

“…In this paper, we experimentally demonstrate the impacts of laboratory vibrations and laser flicker noise on digital holography (DH). Specifically, we measure…”
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Pressure broadening and shift rates for Ar (s–p) transitions observed in an Ar–He discharge by Eshel, Ben, Rice, Christopher A., Perram, Glen P.

“…The pressure broadening and shift rates have been measured for the 801.699nm (s5→p8), 800.836nm (s4→p6) and 795.036nm (s3→p4) transitions in argon perturbed by…”
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The cesium 62P3/2 to 82S1/2 line shape broadened by He, Ar, and Kr by True, Timothy M., Rice, Christopher A., Perram, Glen P.

“…•Observed broadening and shift rates for the Cs line shape with He, Ar, and Kr.•Observed rates are approximately 4–6 times larger than for the D1 line.•A red…”
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Saturation spectroscopy of an optically opaque argon plasma by Eshel, Ben, Rice, Christopher A., Perram, Glen P.

“…A pure argon (Ar) plasma formed by a capacitively coupled radio-frequency discharge was analyzed using Doppler-free saturation spectroscopy. The expected line…”
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Temperature dependence of the fine structure mixing induced by 4He and 3He in K and Rb Diode Pumped Alkali Lasers by Weeks, David E., Lewis, Charlton D., Schlie, L. A., Perram, Glen P.

“…A critical evaluation of the experimental and theoretical literature regarding the rates for fine structure mixing in the first excited 2 P 3/2,1/2 states of…”
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Combustion kinetics of laser irradiated porous graphite from imaging Fourier transform spectroscopy by Acosta, Roberto I., Gross, Kevin C., Perram, Glen P.

“…The combustion plumes arising from laser-irradiated graphite targets were investigated experimentally using hyperspectral, imaging Fourier transform…”
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A three-level model for alkali metal vapor lasers. Part II: broadband optical pumping by Hager, Gordon D., Perram, Glen P.

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Short-Range Demonstrations of Monocular Passive Ranging Using O2 (X3Σg− → b1Σ+g) Absorption Spectra by Hawks, Michael R., Vincent, R. Anthony, Martin, Jacob, Perram, Glen P.

“…The depth of absorption bands in observed spectra of distant, bright sources can be used to estimate range to the source. Experimental results are presented…”
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Optical delay with spectral hole burning in Doppler-broadened cesium vapor by Anderson, Monte D., Perram, Glen P.

“…The full frequency dependence of the optical delay in the Cs D1 (62S1/2−62P1/2) line has been observed, including all four hyperfine split components. Pulse…”
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Investigation of atmospheric using open-path tunable diode laser absorption spectroscopy by Rice, Christopher A., Gross, Kevin C., Perram, Glen P.

“…A tunable diode laser absorption spectroscopy (TDLAS) device fiber coupled to a pair of 12.5 in. telescopes was used to study atmospheric propagation for open…”
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Gas-Phase Plume from Laser-Irradiated Fiberglass-Reinforced Polymers via Imaging Fourier Transform Spectroscopy by Acosta, Roberto I., Gross, Kevin C., Perram, Glen P., Johnson, Shane M., Dao, Ly, Medina, David F., Roybal, Robert, Black, Paul

“…Emissive plumes from laser-irradiated fiberglass-reinforced polymers (FRP) were investigated using a mid-infrared imaging Fourier transform spectrometer,…”
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Modeling midwave infrared muzzle flash spectra from unsuppressed and flash-suppressed large caliber munitions by Steward, Bryan J., Perram, Glen P., Gross, Kevin C.

“…► Time-resolved infrared muzzle flash spectra from a large caliber gun are reported. ► Radiative transfer models are used to estimate physical properties from…”
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In situ creation of nanoparticles from YBCO by pulsed laser deposition by Barnes, Paul N, Murray, P.Terry, Haugan, Tim, Rogow, Richard, Perram, Glen P

“…Nanoparticles created by the laser ablation of YBCO are reported. The experimental procedure entailed pulsed laser deposition (PLD) of YBCO at a high…”
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