Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Julian Sweet"'
Publikováno v:
Optics express. 24(9)
This paper proposes and analyzes resonant Si-based electro-optical modulators and switches that use Ge-on-Sisub3/subNsub4/subnanobeams (NBs) operating at 2 to 5 µm wavelengths. The wavelength of operation can be extended to 15 µm by mounting the Ge
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::db40f3177e69c1ab0aecc66a323b55f4
https://pubmed.ncbi.nlm.nih.gov/27137553
https://pubmed.ncbi.nlm.nih.gov/27137553
Autor:
Norbert F. Scherer, Matthew Pelton, Julian Sweet, Zijie Yan, Justin E. Jureller, Mason J. Guffey
Publikováno v:
ACS Nano. 6:8144-8155
We demonstrate controlled trapping and manipulation of single silver (Ag) nanowires in two dimensions at a surface using structured light fields generated with a spatial light modulator. The Ag nanowires are attracted toward the regions of maximal op
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::be32bc64f5177e465a7b1c98dfb0c69b
https://doi.org/10.1021/nn302795j
https://doi.org/10.1021/nn302795j
Autor:
Dongzhi Hu, Galina Khitrova, J. D. Olitzky, Joshua R. Hendrickson, B. C. Richards, Uday K. Khankhoje, Dagmar Gerthsen, Daniel M. Schaadt, Julian Sweet, H. M. Gibbs, Axel Scherer, Dimitri Litvinov, Martin Wegener
Publikováno v:
Photonics and Nanostructures - Fundamentals and Applications. 8:1-6
In an effort to understand why short wavelength (~1000 nm) GaAs-based photonic crystal slab nanocavities have much lower quality factors (Q) than predicted (and observed in Si), many samples were grown, fabricated into nanocavities, and studied by at
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c7853956b834f8ebed63faf71c1e32c0
https://doi.org/10.1016/j.photonics.2009.10.004
https://doi.org/10.1016/j.photonics.2009.10.004
Autor:
W. W. Rühle, B. C. Richards, Sangam Chatterjee, Josh Hendrickson, S. Horst, Julian Sweet, Dimitri Litvinov, Hyatt M. Gibbs, Galina Khitrova, Stephan W. Koch, Dagmar Gerthsen, Martin Wegener, Alexej Chernikov
Publikováno v:
Solid State Communications. 149:1485-1492
An ensemble of InAs quantum dots with ground state transition energies centered at 1.216 eV and density 1011dots/cm2 has been studied by time-resolved photoluminescence (PL). The wavelength of the 100-fs excitation pulse was tuned through the ground
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::86dcc7ffed76032f5068dcaae0a8243b
https://doi.org/10.1016/j.ssc.2009.04.041
https://doi.org/10.1016/j.ssc.2009.04.041
Publikováno v:
Optics express. 23(1)
New device designs are proposed and theoretical simulations are performed on electro-optical routing switches in which light beams enter and exit the device either from free space or from lensed fibers. The active medium is a ~100 nm layer of phase c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9174be5cd03c52cdf987cf75261103c5
https://pubmed.ncbi.nlm.nih.gov/25835655
https://pubmed.ncbi.nlm.nih.gov/25835655
Publikováno v:
Frontiers in Optics 2014.
A lateral p-n junction nanobeam electro-optic modulator for the 8 micron regime is presented. Owing to a strong free-carrier absorption effect, an ultralow switching energy is achieved, while utilizing a small footprint, monolithic, and VLSI-compatib
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::62bbb8cd9618cc32078a763644f68e2d
https://doi.org/10.1364/fio.2014.ftu1d.5
https://doi.org/10.1364/fio.2014.ftu1d.5
Autor:
Matthew Pelton, Norbert F. Scherer, Julian Sweet, Zijie Yan, Justin E. Jureller, Mason J. Guffey
Publikováno v:
Nano letters. 12(10)
We report the first experimental realization of all-optical trapping and manipulation of plasmonic nanowires in three dimensions. The optical beam used for trapping is the Fourier transform of a linearly polarized Bessel beam (termed FT-Bessel). The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::72559b2ae50f1ffa14fc99c36cb5e73c
https://pubmed.ncbi.nlm.nih.gov/22931238
https://pubmed.ncbi.nlm.nih.gov/22931238
Autor:
Stephan W. Koch, B. C. Richards, Dimitri Litvinov, Martin Wegener, Alexej Chernikov, Sangam Chatterjee, Dagmar Gerthsen, Joshua R. Hendrickson, W. W. Rühle, Galina Khitrova, S. Horst, Hyatt M. Gibbs, Julian Sweet
Publikováno v:
Physics and Simulation of Optoelectronic Devices XVIII.
We present time-resolved photoluminescence measurements performed on an ensemble of InAs quantum dots with density of 10 11 dots/cm2 and ground state transition energies centered at 1.216 eV. The wavelength of the 100fs excitation pulse was tuned thr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c17f4d74de45542af8c3eb0e1723c55
https://doi.org/10.1117/12.841589
https://doi.org/10.1117/12.841589
Autor:
B. C. Richards, H. M. Gibbs, Mackillo Kira, Alexander N. Poddubny, Martin K.-H. Schäfer, Martin Wegener, E. L. Ivchenko, Galina Khitrova, Stephan W. Koch, Joshua R. Hendrickson, M. Werchner, Julian Sweet
Publikováno v:
Conference on Lasers and Electro-Optics/International Quantum Electronics Conference.
Quasicrystals based on the excitonic resonances of GaAs/AlGaAs quantum wells were grown with spacings that satisfy a Fibonacci sequence. Linear and nonlinear reflectivity and photoluminescence measurements were performed, agreeing quite well with the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80e8f65f49c19bcfc0e1b304e10abf40
https://doi.org/10.1364/iqec.2009.ithn1
https://doi.org/10.1364/iqec.2009.ithn1
Autor:
B. C. Richards, H. M. Gibbs, Joshua R. Hendrickson, M. Pajor, Axel Scherer, S. Mosor, Julian Sweet, Galina Khitrova, Oleg B. Shchekin, Dennis G. Deppe, C. Christenson, Tomoyuki Yoshie
Publikováno v:
2006 Conference on Lasers and Electro-Optics and 2006 Quantum Electronics and Laser Science Conference.
Photonic crystal slab nanocavities containing one layer of quantum dots have exhibited: strong coupling to a single quantum dot; tuning by condensation of xenon gas; linewidth broadening due to ensemble dot absorption; gain and lasing.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1644381655ac6fc8a80b9cfe7fed4ce5
https://doi.org/10.1109/cleo.2006.4629159
https://doi.org/10.1109/cleo.2006.4629159