Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Hanhong Gao"'
Publikováno v:
Optics Communications. 284:4820-4823
Modern photonic devices require more and more compact integration of photonic components and mechanical components, which, however, will cause interference and degrade the photonic performance. Here we propose a method that can be used to reduce the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b944972cf3ed28febd12252eeed34bb3
https://doi.org/10.1016/j.optcom.2011.06.028
https://doi.org/10.1016/j.optcom.2011.06.028
Autor:
Su Xu, John D. Joannopoulos, Hongyi Xu, Hanhong Gao, Hongsheng Chen, Faxin Yu, Yuyu Jiang, Marin Soljacic, Handong Sun, Baile Zhang
Guiding surface electromagnetic waves around disorder without disturbing the wave amplitude or phase is in great demand for modern photonic and plasmonic devices, but is fundamentally difficult to realize because light momentum must be conserved in a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::75241a0ddd7a71f0cde9a33308766525
http://hdl.handle.net/10220/39144
http://hdl.handle.net/10220/39144
Publikováno v:
Imaging and Applied Optics 2014.
We design an experiment of using volume hologram filters with telephoto objectives to detect solar-illuminated artificial satellite under strong daylight background noise. Results verify the suppression of background noise and enhancement in overall
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e089558b0dfb235b4a8738590903a7cd
https://doi.org/10.1364/dh.2014.dth3b.3
https://doi.org/10.1364/dh.2014.dth3b.3
Publikováno v:
2013 International Conference on Optical MEMS and Nanophotonics (OMN).
A thin-film nanostructured Luneburg lens with guidance condition correction has been fabricated by patterning a slab of silicon-rods on silicon-on-insulator wafer, and has been characterized using a near-field scanning optical microscope.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ddd84cfe9ba092b33c0dc4407a323cdb
https://doi.org/10.1109/omn.2013.6659046
https://doi.org/10.1109/omn.2013.6659046
Autor:
Hanhong Gao, George Barbastathis
Publikováno v:
Digital Holography and Three-Dimensional Imaging.
We present how to optimize and locate the best combination of point indenters exerted on the exterior of the holograms to achieve the desired point-spread-functions (PSFs) in volume holographic imaging systems.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f23d619cd01f369e3fcef49089c0562
https://doi.org/10.1364/dh.2013.dth3a.6
https://doi.org/10.1364/dh.2013.dth3a.6
Publikováno v:
Digital Holography and Three-Dimensional Imaging.
We design and optimize volume hologram filters with telephoto objectives to mitigate the daytime sky background noise in the detection of solar-illuminated artificial satellites. Overall signal-to-noise ratio enhancement of 7.5 has been achieved.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dfbc8061cd17b8aaa1a2376f0e910a8a
https://doi.org/10.1364/dh.2013.dw5a.4
https://doi.org/10.1364/dh.2013.dw5a.4
We use Hamiltonian ray tracing and phase-space representation to describe the propagation of a single spatial soliton and soliton collisions in a Kerr nonlinear medium. Hamiltonian ray tracing is applied using the iterative nonlinear beam propagation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::29b507733cb219d22e5b5ed4186149e7
Autor:
Yen-Sheng Lu, Hongyi Xu, C. Max Hsieh, Baile Zhang, George Barbastathis, Hanhong Gao, Handong Sun
Publikováno v:
2012 International Conference on Optical MEMS and Nanophotonics.
We present the first ever design of bending adaptor based on transformation optics at near-infrared frequency (1550 nm). The Si-air nanograting structure with period
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b2b854c9de25ae6273000d9304d4c8ca
https://doi.org/10.1109/omems.2012.6318858
https://doi.org/10.1109/omems.2012.6318858
Autor:
George Barbastathis, Hyungryul J. Choi, Ignacio Cornago, Hanhong Gao, Jeong-Gil Kim, Chih-Hao Chang
Publikováno v:
2012 International Conference on Optical MEMS and Nanophotonics.
Tapered nanostructures with high aspect ratio were fabricated using high-throughput nanoimprint process. The replicated nanostructures have axially increasing effective refractive index, which enhances the optical transmission over a wide range of wa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bbf4a7422b0f75c4fa9157fc86f7c9bf
https://doi.org/10.1109/omems.2012.6318807
https://doi.org/10.1109/omems.2012.6318807