Zobrazeno 1 - 10
of 179
pro vyhledávání: '"Ali Z Khokhar"'
Autor:
Kapil Debnath, Ali Z Khokhar, Stuart A Boden, Hideo Arimoto, Swe Zin Oo, Harold M H Chong, Graham Trevor Reed, Shinichi Saito
Publikováno v:
Frontiers in Materials, Vol 3 (2016)
We demonstrate low-loss slot waveguides on silicon-on-insulator (SOI) platform. Waveguides oriented along the (11-2) direction on the Si (110) plane were first fabricated by a standard e-beam lithography and dry etching process. A TMAH based anisotro
Externí odkaz:
https://doaj.org/article/d4e2a4d93b1443c897fc4d533a97a0c3
Publikováno v:
Materials Research Express, Vol 1, Iss 4, p 045802 (2014)
In this paper we demonstrate the ability to fabricate fishnets by nanoimprinting directly into a pre-deposited three layer metal–dielectric–metal stack, enabling us to pattern large areas in two minutes. We have designed and fabricated two differ
Externí odkaz:
https://doaj.org/article/556949322c8c44108576ff9335c59480
Autor:
Kevin Vynck, Nicholas J. Dinsdale, Bigeng Chen, Roman Bruck, Ali Z. Khokhar, Scott A. Reynolds, Lee Crudgington, David J. Thomson, Graham T. Reed, Philippe Lalanne, Otto L. Muskens
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-10 (2018)
Advanced photonic probes are important for the development of non-contact wafer-scale testing of photonic chips. Here, Vynck et al. develop a quantitative technique based on mapping of transmittance variations by ultrafast perturbations to analyze ar
Externí odkaz:
https://doaj.org/article/dd5f4fa5772c4eeda483237d7571d2ec
Autor:
Daniel Pérez, Ivana Gasulla, Lee Crudgington, David J. Thomson, Ali Z. Khokhar, Ke Li, Wei Cao, Goran Z. Mashanovich, José Capmany
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-9 (2017)
Integrated optical circuits today are typically designed for a few special functionalities and require complex design and development procedures. Here, the authors demonstrate a reconfigurable but simple silicon waveguide mesh with different function
Externí odkaz:
https://doaj.org/article/3410b1bd070b43149db2e7b3b4b0087c
Autor:
Cosimo Lacava, Stevan Stankovic, Ali Z. Khokhar, T. Dominguez Bucio, F. Y. Gardes, Graham T. Reed, David J. Richardson, Periklis Petropoulos
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-13 (2017)
Abstract Nonlinear silicon photonic devices have attracted considerable attention thanks to their ability to show large third-order nonlinear effects at moderate power levels allowing for all-optical signal processing functionalities in miniaturized
Externí odkaz:
https://doaj.org/article/fa14a661e7c94b169cc53fcedee9b948
Autor:
Kapil Debnath, David J. Thomson, Ali Z. Khokhar, Weiwei Zhang, Frederic Y. Gardes, Bigeng Chen, Jamie D. Reynolds, Ke Li, James Byers, Martin Ebert, Shinichi Saito, Callum G. Littlejohns, Muhammad Husain, Shenghao Liu
Publikováno v:
Journal of Lightwave Technology. 39:201-207
This article analysed and optimised horizontal Silicon insulator Silicon capacitor (H-SISCAP) phase shifter structures with insulator thickness tox up to 40 nm. The phase shifter has an effective capacitance ( C eff) around 0.5 fF/μm and a phase cha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ca8433a615f76eaf11e9fc08180e726e
https://doi.org/10.1109/jlt.2020.3026945
https://doi.org/10.1109/jlt.2020.3026945
Autor:
Pavel Cheben, Zhibo Qu, Yolanda Xu Cheng, Alejandro Ortega-Moñux, Faysal El Mokhtari Mimun, Jordi Soler Penades, Ali Z. Khokhar, Wei Cao, Callum G. Littlejohns, Milos Nedeljkovic, Goran Z. Mashanovich, Robert Halir, Ahmed Osman, Íñigo Molina-Fernández, Alejandro Sánchez-Postigo, Juan Gonzalo Wanguemert-Perez
Publikováno v:
RIUMA. Repositorio Institucional de la Universidad de Málaga
instname
instname
In this work, the authors present their recent progress in the development of a platform for the mid-infrared wavelength range, based on suspended silicon waveguides with subwavelength metamaterial cladding. The platform has some intrinsic advantages
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a7ccc450660df464fa868d7ece575ca6
https://doi.org/10.1049/iet-opt.2018.5067
https://doi.org/10.1049/iet-opt.2018.5067
Autor:
T. Dominguez Bucio, Stuart A. Boden, Rafidah Petra, Swe Zin Oo, Ali Z. Khokhar, Harold M. H. Chong, Antulio Tarazona, Frederic Y. Gardes, Graham T. Reed
Publikováno v:
Thin Solid Films. 676:26-30
In this work different silicon photonic devices, including straight waveguides, multi-mode interference devices and Mach-Zehnder interferometers, were fabricated and characterized on hot-wire chemical vapor deposition (HWCVD) silicon nitride (SiN) la
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7978be74823df055d748bfd5bf577778
https://doi.org/10.1016/j.tsf.2019.02.048
https://doi.org/10.1016/j.tsf.2019.02.048
Autor:
Daniel Pérez, Ivana Gasulla, Lee Crudgington, David J. Thomson, Ali Z. Khokhar, Ke Li, Wei Cao, Goran Z. Mashanovich, José Capmany
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-1 (2017)
Change History: A correction to this article has been published and is linked from the HTML version of this article.
Externí odkaz:
https://doaj.org/article/7d64c99ce9c74ada89c1abc45cc98cf7
Autor:
Neil P. Sessions, James S. Wilkinson, David J. Thomson, Stevan Stankovic, Katarzyna Grabska, Xia Chen, Ali Z. Khokhar, Christoph Daedlow, Ke Li, Colin J. Mitchell, Graham T. Reed, Ralph Schachler, Xiangjun Wang
Publikováno v:
2020 IEEE 8th Electronics System-Integration Technology Conference (ESTC).
A method of achieving hybrid integration of laser bars on a silicon platform, using chip-flip bonding, is presented. A support structure etched into the substrate is used to provide vertical alignment to the plane utilizing a gimballed placement lase
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::78c036759672d662ada3fd2b801868a2
https://doi.org/10.1109/estc48849.2020.9229661
https://doi.org/10.1109/estc48849.2020.9229661