Zobrazeno 1 - 10
of 260
pro vyhledávání: '"Eftekhar, Ali"'
Autor:
Taghinejad, Hossein, Taghinejad, Mohammad, Abdollahramezani, Sajjad, Li, Qitong, Woods, Eric V., Tian, Mengkun, Eftekhar, Ali A., Lyu, Yuanqi, Zhang, Xiang, Ajayan, Pulickel M., Cai, Wenshan, Brongersma, Mark L., Analytis, James G., Adibi, Ali
Achieving deterministic control over the properties of low-dimensional materials with nanoscale precision is a long-sought goal. Mastering this capability has a transformative impact on the design of multifunctional electrical and optical devices. He
Externí odkaz:
http://arxiv.org/abs/2410.06181
Autor:
Eftekhar, Ali Asghar
The light-matter interaction in the near-field of high-Q resonators in SOI and SiN platforms is studied. The interactions of high-Q traveling-wave resonators with both resonant and non-resonant nanoparticles are studied and different applications bas
Externí odkaz:
http://hdl.handle.net/1853/45900
Autor:
Abdollahramezani, Sajjad, Hemmatyar, Omid, Taghinejad, Mohammad, Taghinejad, Hossein, Krasnok, Alex, Eftekhar, Ali A., Teichrib, Christian, Deshmukh, Sanchit, El-Sayed, Mostafa, Pop, Eric, Wuttig, Matthias, Alu, Andrea, Cai, Wenshan, Adibi, Ali
Despite recent advances in active metaoptics, wide dynamic range combined with high-speed reconfigurable solutions is still elusive. Phase-change materials (PCMs) offer a compelling platform for metasurface optical elements, owing to the large index
Externí odkaz:
http://arxiv.org/abs/2104.10381
Autor:
Fan, Tianren, Wu, Xi, Vangapandu, Sai R. M., Hosseinnia, Amir H., Eftekhar, Ali A., Adibi, Ali
We report the first demonstration of integrated electro-optic (EO) phase shifters based on racetrack microresonators on a 3C-silicon-carbide-on-insulator (SiCOI) platform working at near-infrared (NIR) wavelengths. By applying DC voltage in the cryst
Externí odkaz:
http://arxiv.org/abs/2102.05817
Autor:
Abdollahramezani, Sajjad, Hemmatyar, Omid, Taghinejad, Mohammad, Taghinejad, Hossein, Kiarashinejad, Yashar, Zandehshahvar, Mohammadreza, Fan, Tianren, Deshmukh, Sanchit, Eftekhar, Ali A., Cai, Wenshan, Pop, Eric, El-Sayed, Mostafa, Adibi, Ali
Publikováno v:
Nano Letters (2021)
Efficient hybrid plasmonic-photonic metasurfaces that simultaneously take advantage of the potential of both pure metallic and all-dielectric nanoantennas are identified as an emerging technology in flat optics. Nevertheless, post-fabrication tunable
Externí odkaz:
http://arxiv.org/abs/2008.03905
Autor:
Taghinejad, Hossein, Abdollahramezani, Sajjad, Eftekhar, Ali A., Fan, Tianren, Hosseinnia, Amir H., Hemmatyar, Omid, Dorche, Ali Eshaghian, Gallmon, Alexander, Adibi, Ali
Inducing a large refractive-index change is the holy grail of reconfigurable photonic structures, a goal that has long been the driving force behind the discovery of new optical material platforms. Recently, the unprecedentedly large refractive-index
Externí odkaz:
http://arxiv.org/abs/2003.04097
Autor:
Abdollahramezani, Sajjad, Taghinejad, Hossein, Fan, Tianren, Marzban, Mahmood Reza, Eftekhar, Ali A., Adibi, Ali
We present a hybrid device platform for creating an electrically reconfigurable metasurface formed by the integration of plasmonic nanostructures with phase-change material germanium antimony telluride (GST). By changing the phase of GST from amorpho
Externí odkaz:
http://arxiv.org/abs/1809.08907
Bright-soliton frequency comb generation in a thin-film silicon nitride (SiN) microresonator at optical telecommunication wavelengths is numerically demonstrated using our recently developed approach for dispersion-engineering by virtue of coupling-d
Externí odkaz:
http://arxiv.org/abs/1806.11225
Autor:
Abdollahramezani Sajjad, Taghinejad Hossein, Fan Tianren, Marzban Mahmood Reza, Eftekhar Ali A., Adibi Ali
Publikováno v:
Nanophotonics, Vol 11, Iss 17, Pp 3883-3893 (2022)
We present a hybrid device platform for creating an electrically reconfigurable metasurface formed by the integration of plasmonic nanostructures with phase-change material germanium antimony telluride (GST). By changing the phase of GST from amorpho
Externí odkaz:
https://doaj.org/article/9da8be5ebfef4968972e6908752d1381
Publikováno v:
Phys. Rev. A 96, 013828 (2017)
The damped driven nonlinear Schr\"odinger equation (NLSE) has been used to understand a range of physical phenomena in diverse systems. Studying this equation in the context of optical hyper-parametric oscillators in anomalous-dispersion dissipative
Externí odkaz:
http://arxiv.org/abs/1707.05705