Search Results - "Prineas, John P"

Contactless Optical Characterization of Carrier Dynamics in Free-Standing InAs-InAlAs Core–Shell Nanowires on Silicon by Li, Xinxin, Zhang, Kailing, Treu, Julian, Stampfer, Lukas, Koblmueller, Gregor, Toor, Fatima, Prineas, John P

“…Contactless time-resolved optical pump–probe and external quantum efficiency measurements were performed in epitaxially grown free-standing wurtzite indium…”
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Analytical Evaluation of Mobile In Situ Soil Nitrate Infrared Sensor Designs for Precision Agriculture by Gao, Bingtao, Walhof, Alexander C., Laird, David A., Toor, Fatima, Prineas, John P.

“…One approach to improving nitrogen fertilizer use efficiency in crop production is to use infrared (IR) soil nitrate sensors to analyze soil nitrate and then…”
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Long interior carrier lifetime in selective-area InAs nanowires on silicon by Zhang, Kailing, Li, Xinxin, Walhof, Alexander C., Liu, Yuzi, Toor, Fatima, Prineas, John P.

“…Catalyst-free, position-controlled indium arsenide (InAs) nanowires (NWs) of variable diameters were grown on Si (111) by selective-area epitaxy (SAE)…”
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Enhanced radiative and thermal properties from surface encapsulation of InAs nanowires by Li, Xinxin, Walhof, Alexander C., Dai, Weitao, Arslan, Ilke, Liu, Yuzi, Toor, Fatima, Prineas, John P.

“…In this work, photoluminescence (PL), quantum efficiency and carrier dynamics are investigated in indium arsenide (InAs) nanowires (NWs) with various surface…”
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Dual-Color InAs/GaSb Cascaded Superlattice Light-Emitting Diodes by Ricker, Russell J., Hudson, Andrew, Provence, Sydney, Norton, Dennis T., Olesberg, Jonathon T., Murray, Lee M., Prineas, John P., Boggess, Thomas F.

“…Over the last decade, InAs/GaSb superlattice structures have become an increasingly important technology for infrared applications. By stacking two…”
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Over Three Hundred Percent Increased Light Extraction from Emitters at Mid-Infrared Wavelengths Using Metalenses by Bogh, Cassandra L, Muhowski, Aaron J, Montealegre, David A, Muellerleile, Andrew M, Olesberg, Jonathon T, Prineas, John P

“…Low extraction efficiencies continue to be a source of parasitic heating and decreased performance in infrared light-emitting diodes. Research into…”
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Cascaded Superlattice InAs/GaSb Light-Emitting Diodes for Operation in the Long-Wave Infrared by Koerperick, Edwin J, Norton, Dennis T, Olesberg, Jonathon T, Olson, Benjamin V, Prineas, John P, Boggess, Thomas F

“…Superlattice InAs/GaSb light-emitting diodes with peak emission wavelength of 8.6 μm and output power approaching 190 μW at 77 K from a 120 × 120 μm 2 mesa are…”
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High-Power MWIR Cascaded InAs-GaSb Superlattice LEDs by Koerperick, E.J., Olesberg, J.T., Hicks, J.L., Prineas, J.P., Boggess, T.F.

“…Midwave IR LEDs operating at 3.8 mum with output powers approaching 25 mW at 77 K are reported. Devices based on the InAs-GaSb superlattice material system…”
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Enhanced MWIR Led Performance with a Plasmonic Grating by Dai, Weitao, Prineas, John P.

“…To improve the efficiency of GaSb-based mid-wave infrared LEDs, we investigated the enhanced spontaneous emission by a dipole in a thin slab numerically. A…”
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Mid-Infrared Cascaded Superlattice LEDs Improved Order of Magnitude from New Four-Layer Superlattices and Textured Interfaces by Prineas, John P., Montealegre, David A., Walhof, Alex C., Schrock, Katrina

“…We incorporate new four-layer superlattices into cascaded mid-infrared superlattices for improved quantum efficiency, and thinning/roughening of the substrate…”
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Designing and Characterizing Metalenses for the Increased Light Extraction of MWIR LEDs by Bogh, Cassandra L., Muhowski, Aaron J., Montealegre, David, Meullerleile, Andrew, Olesberg, Jonathon T., Flatte, Michael E., Prineas, John P.

“…High radiance IRLEDs have been achieved, but much of the light created still remains in the device resulting in poor wall-plug efficiencies. Preliminary…”
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Adiabatically driven electron dynamics in a resonant photonic band gap : Optical switching of a Bragg periodic semiconductor by SCHAARSCHMIDT, Martin, FÖRSTNER, Jens, KNORR, Andreas, PRINEAS, John P, NIELSEN, Nils C, KUHL, Jürgen, KHITROVA, Galina, GIBBS, Hyatt M, GIESSEN, Harald, KOCH, Stephan W

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512 \times 512, 100 Hz Mid-Wave Infrared LED Microdisplay System by Ejzak, Garrett A., Dickason, Jonathan, Marks, Joshua A., Nabha, Kassem, McGee, Rodney T., Waite, Nicholas A., Benedict, Jake T., Hernandez, Miguel A., Provence, Sydney R., Norton, Dennis T., Prineas, John P., Goossen, Keith W., Kiamilev, Fouad E., Boggess, Thomas F.

“…The demand for high-speed and/or high-temperature infrared (IR) scene projectors has led to the development of systems based on IR light-emitting-diode (LED)…”
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512 \,\times\,512 Individually Addressable MWIR LED Arrays Based on Type-II InAs/GaSb Superlattices by Norton, Dennis T., Olesberg, Jonathon T., McGee, Rodney T., Waite, Nicholas A., Dickason, Jonathan, Goossen, K. W., Lawler, John, Sullivan, Gerry, Ikhlassi, Amal, Kiamilev, Fouad, Koerperick, Edwin J., Murray, Lee M., Prineas, John P., Boggess, Thomas F.

“…Single element 33×33 μm 2 InAs/GaSb superlattice light-emitting diodes (SLEDs) operating at 77 K with peak emission at approximately 4.6 μm are demonstrated. A…”
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Ultrafast ac Stark effect switching of the active photonic band gap from Bragg-periodic semiconductor quantum wells by Prineas, J. P., Zhou, J. Y., Kuhl, J., Gibbs, H. M., Khitrova, G., Koch, S. W., Knorr, A.

“…The ultrafast suppression and recovery of an active photonic band-gap structure constructed from the periodic complex susceptibility of quantum well excitons…”
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Active Region Cascading for Improved Performance in InAs-GaSb Superlattice LEDs by Koerperick, E.J., Olesberg, J.T., Hicks, J.L., Prineas, J.P., Boggess, T.F.

“…Cascading of active regions in InAs-GaSb superlattice light-emitting diodes (LEDs) grown by molecular beam epitaxy is demonstrated as an effective means of…”
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Radiative and Nonradiative Recombination Coefficients of InAs/InAlAs Core-shell Nanowires by Li, Xinxin, Zhang, Kailing, Toor, Fatima, Treu, Julian, Stampfer, Lukas, Koblmueller, Gregor, Prineas, John P.

“…Ultrafast and external quantum efficiency measurements were performed on InAs/InAlAs core-shell nanowires. Rates of different recombination mechanisms were…”
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End to End Testing of IRLED Projectors by Barakhshan, Peyman, Volz, Jeffrey, Ricker, Russell J., Hernandez, Miguel, Landwehr, Aaron, Provence, Sydney, Nabha, Kassem, Houser, Rebekah, Prineas, John P., Campbell, Casey, Kiamilev, Fouad, Boggess, Thomas F.

“…In 2014, our team built the world's first infrared LED scene projector. This system is called the SLEDS projector and has been thoroughly tested and evaluated…”
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Polarization- and spin-dependent ultrafast optical nonlinearities of Bragg-spaced quantum wells by Johnston, W.J., Prineas, J.P., Smirl, A.L., Nguyen, D.T., Kwong, N.H., Binder, R., Khitrova, G., Gibbs, H.M.

“…Spin- and polarization-dependent ultrafast blue shifts, transient gain and self-wave-mixing are observed in Bragg-spaced InGaAs/GaAs quantum wells. The data…”
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Ultrafast all-optical polarization spin switching in resonant photonic bandgap structures by Johnston, W.J., Yildirim, M., Prineas, J.P., Smirl, A.J., Gibbs, H.M., Khitrova, G.

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