Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Razi Dehghannasiri"'
Integrated phononic crystal resonators based on adiabatically-terminated phononic crystal waveguides
Publikováno v:
AIP Advances, Vol 6, Iss 12, Pp 121603-121603-6 (2016)
In this letter, we demonstrate a new design for integrated phononic crystal (PnC) resonators based on confining acoustic waves in a heterogeneous waveguide-based PnC structure. In this architecture, a PnC waveguide that supports a single mode at the
Externí odkaz:
https://doaj.org/article/5305fca15887401f948dfa66c2e834d8
Autor:
Iman Taghavi, Razi Dehghannasiri, Tianren Fan, Alexander Tofini, Hesam Moradinejad, Ali. A. Efterkhar, Sudip Shekhar, Lukas Chrostowski, Nicolas A. F. Jaeger, Ali Adibi
Publikováno v:
Web of Science
An ultra-narrow slot waveguide is fabricated for use in highly-efficient, electro-optic-polymer-based, integrated-optic modulators. Measurement results indicate that $V_\pi L$'s below 1.2 V.mm are possible for balanced Mach-Zehnder modulators using t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8350e145c54be08f720d34416ab3e9f1
https://pubmed.ncbi.nlm.nih.gov/36236945
https://pubmed.ncbi.nlm.nih.gov/36236945
Publikováno v:
Physical Review Applied. 10
The promise of surface phononic crystals (PnCs) for $e.g.$ rf signal processing in wireless communication (like your mobile phone) has not been realized, due to the complexity of acoustic wave propagation in such structures, plus the lack of a low-lo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::481e1619943b04125948d0ba28a26b02
https://doi.org/10.1103/physrevapplied.10.064019
https://doi.org/10.1103/physrevapplied.10.064019
Autor:
Tianren Fan, Amir H. Hosseinnia, Ali A. Eftekhar, Razi Dehghannasiri, Hesam Moradinejad, Ali Adibi
Publikováno v:
2018 IEEE Photonics Conference (IPC).
We report the fabrication of the integrated deformable resonators with strong optomechanical interactions in the double-layer crystalline silicon platforms along with the experimental observation of the sustainable optomechanical oscillations (up to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::07573ceaf9adb5dd8f08df7b2fd4085b
https://doi.org/10.1109/ipcon.2018.8527120
https://doi.org/10.1109/ipcon.2018.8527120
Publikováno v:
Physical Review Applied. 9
Phononic crystals (PnCs) have been studied extensively for two decades, as an enticing platform for ultrahigh-frequency signal processing. However, struggles with geometric scaling and efficient coupling of acoustic energy at the microscale have hind
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b751c84bf588795a5751398eb3b094d8
https://doi.org/10.1103/physrevapplied.9.014013
https://doi.org/10.1103/physrevapplied.9.014013
Autor:
Ali Adibi, Hossein Taghinejad, Razi Dehghannasiri, Amir H. Hosseinnia, Iman Taghavi, Tianren Fan, Ali A. Eftekhar, Hesam Moradinejad
Publikováno v:
Conference on Lasers and Electro-Optics.
Effective infiltration and polling of electro-optic polymer (EOP) inside world-record vertical slot of 40 nm is demonstrated for a Mach-Zehnder modulator on a hybrid Si/SiN/EOP platform with highly-linear and high-power handling performance capabilit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::78a1d97244a1cfaa91e28ef8b4d98958
https://doi.org/10.1364/cleo_si.2018.sm1i.1
https://doi.org/10.1364/cleo_si.2018.sm1i.1
Publikováno v:
Physical Review A. 96
We study theoretically stimulated Brillouin scattering (SBS) in silicon nitride (SiN) waveguides created as a phononic line defect inside a pillar-based phononic-crystal membrane of the same material for efficient confinement of the generated acousti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::02992d4828fbec74024917f8bebaedbb
https://doi.org/10.1103/physreva.96.053836
https://doi.org/10.1103/physreva.96.053836
Publikováno v:
2017 IEEE Photonics Conference (IPC).
Here, we report the first observation of stimulated Brillouin scattering (SBS) in Si 3 N 4 waveguides. The waveguides are designed as a line defect in a membrane phononic crystal (MPnC). The observed SBS frequency is at 1.55 GHz within the first phon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cc0efbb1ac843ff03eecd71c7630dc8e
https://doi.org/10.1109/ipcon.2017.8116038
https://doi.org/10.1109/ipcon.2017.8116038
Publikováno v:
Frontiers in Optics 2017.
We present highly-sensitive and compact label-free biosensors based on spiral resonators on SOI with high-Q TM-polarized resonant modes, which provide high-sensitivity and relatively large sensing area. The sensor performance is characterized using a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::879799e03a2559da97ebfbc120a2f873
https://doi.org/10.1364/fio.2017.fm3d.1
https://doi.org/10.1364/fio.2017.fm3d.1
Publikováno v:
Conference on Lasers and Electro-Optics.
We present stimulated Brillouin (SBS) scattering in SiN based on combining optical waveguides with pillar-based phononic crystals. We utilize breathing modes inside the phononic crystals that strongly interact with optical modes, enabling low-thresho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b22a9f0b2b82af33eb57df01ccb40d4
https://doi.org/10.1364/cleo_si.2016.sm1e.8
https://doi.org/10.1364/cleo_si.2016.sm1e.8