Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Faramarz Alihosseini"'
Publikováno v:
Applied Physics B. 128
We propose and design a high-speed and high-performance optically controlled terahertz (THz) intensity modulator based on the free carrier modulation of a GaAs semiconductor. The device comprises a photonic crystal cavity-waveguide coupling structure
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b874dbb49bd7b35b98ddee554149ff58
https://doi.org/10.1007/s00340-022-07929-1
https://doi.org/10.1007/s00340-022-07929-1
Publikováno v:
Applied optics. 61(23)
We propose a high-performance plasmonic photodetector based on the internal photoemission (IPE) process for the C-band communication wavelength. This photodetector takes advantage of an embedded nanohole array in Schottky metal. Owing to localized su
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::66a32a134734fc38d1347e401f1356a0
https://pubmed.ncbi.nlm.nih.gov/36255776
https://pubmed.ncbi.nlm.nih.gov/36255776
Publikováno v:
2022 30th International Conference on Electrical Engineering (ICEE).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac0d01079d9ad542a341fbee93aab286
https://doi.org/10.1109/icee55646.2022.9827030
https://doi.org/10.1109/icee55646.2022.9827030
Publikováno v:
2021 29th Iranian Conference on Electrical Engineering (ICEE).
We present an optically-controlled terahertz (THz) intensity modulator based on photocarrier modulation of GaAs semiconductor, incorporated with photonic crystal cavity-waveguide coupling structure. Here, we demonstrate the intensity of the THz wave
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::18d347635e1312ad086162d9284e92fa
https://doi.org/10.1109/icee52715.2021.9544188
https://doi.org/10.1109/icee52715.2021.9544188
Publikováno v:
Liquid Crystals. :1-5
We present a tunable device with wavelength switching/filtering features using periodic metallic nano-slits integrated with a nematic liquid crystal layer. Electrical tunability is a result of the presence of nematic liquid crystal in the cavity of a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f7ea34e8ff18bcf70d3965a5a00262de
https://doi.org/10.1080/02678292.2015.1082650
https://doi.org/10.1080/02678292.2015.1082650
Publikováno v:
2013 21st Iranian Conference on Electrical Engineering (ICEE).
Effects of subwavelength metallic slits on the absorption efficiency using finite element method (FEM) are investigated. A Fabry-Perot (FP) cavity with Au slits and Au film acting as two reflectors is utilized to support resonance mode in multispectr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b76838e2e8f34ec62f51f35ae4b3e595
https://doi.org/10.1109/iraniancee.2013.6599836
https://doi.org/10.1109/iraniancee.2013.6599836
Publikováno v:
2012 Second Conference on Millimeter-Wave and Terahertz Technologies (MMWaTT).
In this paper, based on effective mass method, we study the absorption characteristics of InAs/GaAs quantum ring photodetector in terahertz range. To enhance the absorption in active region of this photodetector we propose a metallic Fabry-Perot reso
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8c3e6e09bc96ede2215a42dc8a1cee64
https://doi.org/10.1109/mmwatt.2012.6532153
https://doi.org/10.1109/mmwatt.2012.6532153
Publikováno v:
IST
We design and analyze quantum ring (QR) and ring-in-a-well (RWELL) photodetector in order to operate in the terahertz range and calculate its absorption coefficient and dark current. Peak in the absorption coefficient spectrum, corresponds to about 3
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d42501ec61372933afa2ebed958c36ee
https://doi.org/10.1109/istel.2012.6482952
https://doi.org/10.1109/istel.2012.6482952