Zobrazeno 1 - 10
of 111
pro vyhledávání: '"John P. Prineas"'
Autor:
John P. Prineas, David A. Montealegre, Weitao Dai, Katrina N. Schrock, Logan M. Nichols, Matthew Z. Bellus, Alex C. Walhof
Publikováno v:
Quantum Sensing and Nano Electronics and Photonics XIX.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9552363d47c8729bad620a6ea0db743
https://doi.org/10.1117/12.2655279
https://doi.org/10.1117/12.2655279
Publikováno v:
IEEE Sensors Journal. 21:20200-20209
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 spatially modulate fertilizer application rates. The most commonly used Fourier transform IR
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8db665e19151e1ec2e29669437d31175
https://doi.org/10.1109/jsen.2021.3096856
https://doi.org/10.1109/jsen.2021.3096856
Publikováno v:
Light-Emitting Devices, Materials, and Applications XXVI.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::34d89de73efc97dc427c9335751b20be
https://doi.org/10.1117/12.2610437
https://doi.org/10.1117/12.2610437
Autor:
John P. Prineas, Aaron J. Muhowski, A. M. Muellerleile, David A. Montealegre, Jonathon T. Olesberg, Cassandra L. Bogh
Publikováno v:
ACS Applied Electronic Materials. 2:2638-2643
Low extraction efficiencies continue to be a source of parasitic heating and decreased performance in infrared light-emitting diodes. Research into metasurfaces and the advance of methods used to f...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c51968fa7fdcf2d390cc33ed63eaec84
https://doi.org/10.1021/acsaelm.0c00510
https://doi.org/10.1021/acsaelm.0c00510
Publikováno v:
Nano Letters. 19:4272-4278
We report on carrier recombination within self-catalyzed InAs/InAlAs core-shell nanowires (NWs), disentangling recombination rates at the ends, sidewalls, and interior of the NWs. Ultrafast optical pump-probe spectroscopy measurements were performed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0e68ac7d335a1dcc56b6538b43964e1b
https://doi.org/10.1021/acs.nanolett.9b00517
https://doi.org/10.1021/acs.nanolett.9b00517
Autor:
Joshua Marks, Miguel Hernandez, Peyman Barakhshan, Fouad Kiamilev, John P. Prineas, Garrett A. Ejzak, Edwid Koerperick, Kassem Nabha
Publikováno v:
IEEE Photonics Journal, Vol 11, Iss 3, Pp 1-10 (2019)
Infrared scene projectors using LEDs instead of resistor arrays are a new technology that is gaining popularity within the infrared projection community. This paper describes two approaches to increase spatial resolution, pixel density, and efficienc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a7ae8174b438f8770dad1b7a54aa1aa8
https://doi.org/10.1109/jphot.2019.2901715
https://doi.org/10.1109/jphot.2019.2901715
Improved performance of mid-infrared superlattice light emitting diodes grown epitaxially on silicon
Publikováno v:
Journal of Crystal Growth. 507:46-49
InAs/GaSb mid-infrared superlattice light emitting diodes (SLEDs) were grown and fabricated on miscut (1 0 0) Si. Compared to growth on lattice-matched GaSb substrates, SLEDs performed better at typical operating conditions due to improved thermal ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fbd36c10f8fcc605460ccf5d061c75d0
https://doi.org/10.1016/j.jcrysgro.2018.10.047
https://doi.org/10.1016/j.jcrysgro.2018.10.047
Autor:
Fatima Toor, Lukas Stampfer, John P. Prineas, Kailing Zhang, Gregor Koblmueller, J. Treu, Xinxin Li
Publikováno v:
Nano Letters. 19:990-996
Contactless time-resolved optical pump-probe and external quantum efficiency measurements were performed in epitaxially grown free-standing wurtzite indium arsenide/indium aluminum arsenide (InAs-InAlAs) core-shell nanowires on Si (111) substrate fro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::af63d57d5039c2b3cda31562fb1e52b2
https://doi.org/10.1021/acs.nanolett.8b04226
https://doi.org/10.1021/acs.nanolett.8b04226
Publikováno v:
2020 IEEE Research and Applications of Photonics in Defense Conference (RAPID).
We incorporate new four-layer superlattices into cascaded mid-infrared superlattices for improved quantum efficiency, and thinning/roughening of the substrate (emission side) for improved light extraction. Each improves radiance of InAs/GaSb, untextu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f50b2de7adb2f5ec7fe4f9da2534f44
https://doi.org/10.1109/rapid49481.2020.9195698
https://doi.org/10.1109/rapid49481.2020.9195698
Autor:
Cassandra L. Bogh, Aaron J. Muhowski, Michael E. Flatté, David A. Montealegre, Andrew Meullerleile, J.T. Olesberg, John P. Prineas
Publikováno v:
2019 IEEE Research and Applications of Photonics in Defense Conference (RAPID).
High radiance IRLEDs have been achieved, but much of the light created still remains in the device resulting in poor wall-plug efficiencies. Preliminary results presented here show increased light extraction by the addition of a 2D lens to the device
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5562861c7a064675c845c2bb246461be
https://doi.org/10.1109/rapid.2019.8864382
https://doi.org/10.1109/rapid.2019.8864382