Search Results - "Powers, P.E."

Narrow-Bandwidth, Subnanosecond, Infrared Pulse Generation in PPLN Pumped by a Fiber Amplifier-Microchip Oscillator by Cocuzzi, M.D., Schepler, K.L., Powers, P.E.

“…Narrow-bandwidth, 0.5 ns IR pulses were achieved in a periodically poled lithium niobate optical parametric generator (PPLN OPG). The OPG was pumped at 7.14…”
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Experimental Performance of a Two-Stage Periodically Poled Lithium Niobate Parametric Amplifier by Pandey, A.R., Powers, P.E., Haus, J.W.

“…A two-stage periodically poled lithium niobate parametric amplifier is used to boost the idler wave energy by almost a factor of three near the degenerate…”
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Broadband mid-infrared generation with two-dimensional quasi-phase-matched structures by Russell, S.M., Powers, P.E., Missey, M.J., Schepler, K.L.

“…We report the use of highly elliptical pump beams to generate broadband, spatially-chirped mid-infrared light in periodically poled lithium niobate (PPLN). We…”
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Boosting quantum efficiency using multi-stage parametric amplification by Haus, J.W., Pandey, A., Powers, P.E.

“…We develop a numerical simulation to demonstrate increased quantum efficiency that can be achieved by using a second stage, phase matched crystal to convert…”
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The application of quasi-phase-matched parametric light sources to practical infrared chemical sensing systems by Kulp, T.J., Bisson, S.E., Bambha, R.P., Reichardt, T.A., Goers, U.-B., Aniolek, K.W., Kliner, D.A.V., Richman, B.A., Armstrong, K.M., Sommers, R., Schmitt, R., Powers, P.E., Levi, O., Pinguet, T., Fejer, M., Koplow, J.P., Goldberg, L., McRae, T.G.

“…Quasi-phase-matched (QPM) materials allow the generation of spectroscopically useful infrared radiation in an efficient and broadly tunable format. Here, we…”
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Cavity ringdown laser absorption spectroscopy with a 1 kHz mid-infrared periodically poled lithium niobate optical parametric generator/optical parametric amplifier by Aniolek, K.W., Powers, P.E., Kulp, T.J., Richman, B.A., Bisson, S.E.

“…A cavity ringdown spectrometer is described that employs a novel mid-infrared light source based on periodically poled lithium niobate. The source generates…”
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Two-tone frequency modulation spectroscopy from laser light scattered off a hard target by Powers, P.E., Taatjes, C.A., Kulp, T.J.

“…Summary form only given. The results of two-tone frequency-modulated (FM) laser light scattered off a target to look at atmospheric absorptions are presented…”
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Cross-correlation measurements on a high repetition rate, femtosecond optical parametric oscillator by Spence, D.E, Powers, P.E, Tang, C.L

“…Cross-correlation measurements between the pump, signal and idler pulses of a high repetition rate, femtosecond optical parametric oscillator are presented. In…”
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Fiber-guided seeding of narrow bandwidth, sub-nanosecond optical parametric pulse generation in PPLN by Cocuzzi, M.D., Phelps, C.D., Schepler, K.L., Powers, P.E.

“…Narrow bandwidth (70 pm), sub-nanosecond infrared pulses were produced using a signal-seeded, periodically-poled, lithium niobate optical parametric generator…”
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Narrowband mid-infrared generation in elliptically pumped periodically poled lithium niobate by Powers, P.E., Bojja, P.K., Vershure, E.M., Schepler, K.L.

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Issues affecting differential absorption laser imaging of gas leaks by Powers, P.E., Kulp, T.J., Kennedy, R.

“…Summary form only given. Backscatter absorption gas imaging (BAGI) wing cw lasers has successfully generated real-time video images of gas plumes for…”
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Design of a mid-IR active imaging system for gas detection using a pulsed laser source by Kulp, T.J., Powers, P.E., Kennedy, R.

“…Summary form only given. Backscatter absorption gas imaging (BAGI) is a remote sensing technique that uses active imaging to generate real-time video images of…”
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Development of a compact cavity-ringdown spectrometer using a PPLN-based OPG/OPA lightsource by Aniolek, K.W., Kulp, T.J., Richman, B.A., Bisson, S.E., Powers, P.E.

“…Summary form only given. Cavity-ringdown laser absorption spectroscopy (CRLAS) is a powerful technique for quantifying weak absorptions in gases. It is…”
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Broadband mid-infrared generation in elliptically pumped periodically poled lithium niobate devices by Russell, S.M., Missey, M.J., Powers, P.E., Schepler, K.L.

“…Summary form only given. We report the use of highly elliptical pump beams to generate broadband mid-infrared (IR) light in nanosecond-pulsed periodically…”
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Optical parametric generation of greater than 30 mJ signal energies in PPLN stacks by Russell, S.M., Powers, P.E., Missey, M.J., Schepler, K.L.

“…Summary form only given. Coherent mid-infrared (IR) radiation sources with high pulse energies and good beam quality are needed for a variety of remote sensing…”
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Applications of parametric light sources based on quasi-phase-matched materials to chemical sensing by Kulp, T.J., Bisson, S.E., Goers, U.-B., Armstrong, K., Aniolek, K., Powers, P.E., Schmitt, R., Richman, B.

“…Summary form only given. The emergence of practical quasi-phase-matched nonlinear materials has allowed development of infrared (IR) light sources that were…”
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Recent advances in optical parametric processes in the femtosecond time domain by Tang, C.L., Ellington, R.J., Powers, P.E.

“…Until recently, nearly all the experiments on ultrafast processes in the femtosecond time domain have made use of sources derived directly and indirectly from…”
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Comparison of hot-carrier relaxation in quantum wells and bulk GaAs at high carrier densities by PELOUCH, W. S, ELLINGSON, R. J, POWERS, P. E, TANG, C. L, SZMYD, D. M, NOZIK, A. J

“…An investigation of the hot-carrier relaxation in GaAs/(Al,Ga)As quantum wells and bulk GaAs in the high-carrier-density limit is presented. Using a…”
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