Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Resmi Ravi Kumar"'
Autor:
Resmi Ravi Kumar, Evgeny Hahamovich, Shai Tsesses, Yoav Hazan, Assaf Grinberg, Amir Rosenthal
Publikováno v:
IEEE Photonics Journal, Vol 11, Iss 3, Pp 1-11 (2019)
Ultrasound detection via silicon waveguides relies on the ability of acoustic waves to modulate the effective refractive index of the guided modes. However, the low photo-elastic response of silicon and silica limits the sensitivity of conventional s
Externí odkaz:
https://doaj.org/article/6fe7c7fe9ca34629b2078b8c82f12364
Autor:
Michael Nagli, Jürgen Koch, Yoav Hazan, Oleg Volodarsky, Resmi Ravi Kumar, Ahiad Levi, Evgeny Hahamovich, Orna Ternyak, Ludger Overmeyer, Amir Rosenthal
Publikováno v:
Biomed Opt Express
One of the main challenges in miniaturizing optoacoustic technology is the low sensitivity of sub-millimeter piezoelectric ultrasound transducers, which is often insufficient for detecting weak optoacoustic signals. Optical detectors of ultrasound ca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e77de13fc090d882d0e3dfe1f5ea9908
https://europepmc.org/articles/PMC9774880/
https://europepmc.org/articles/PMC9774880/
Publikováno v:
2021 International Conference on Electromagnetics in Advanced Applications (ICEAA).
Since the observations of the dynamic toroidal dipole and non-radiating anapole, the field of toroidal electrodynamics has grown rapidly paving the route to novel physical phenomena including new types of optical activity, Aharonov-Bohm effects, invi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2acb06d1dde11c3d65c0836d665bc589
https://doi.org/10.1109/iceaa52647.2021.9539810
https://doi.org/10.1109/iceaa52647.2021.9539810
Autor:
Ludger Overmeyer, Jürgen Koch, Michael Nagli, Amir Rosenthal, Oleg Volodarsky, Evgeny Hahamovich, Yoav Hazan, Resmi Ravi Kumar, Ahiad Levi
Publikováno v:
Photons Plus Ultrasound: Imaging and Sensing 2021.
One of the main challenges in intravascular photoacoustic (IVPA) imaging is the limited sensitivity and bandwidth of miniaturized piezoelectric probes. Optical detectors of ultrasound can drastically improve both these features, but often lack acoust
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04ec74b7e09f02d8fe010f9210995a7b
https://doi.org/10.1117/12.2577228
https://doi.org/10.1117/12.2577228
Autor:
Amir Rosenthal, Yoav Hazan, Resmi Ravi Kumar, Shai Tsesses, Assaf Grinberg, Evgeny Hahamovich
Publikováno v:
Photons Plus Ultrasound: Imaging and Sensing 2020.
Silicon photonics represents an attractive platform for optical sensing of ultrasound owing to the high light confinement it can achieved, which can enable the development of detector with sub-micron sizes. However, the small elasto-optic coefficient
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::35fcc07ff96bf7439b3a813bb129092b
https://doi.org/10.1117/12.2542155
https://doi.org/10.1117/12.2542155
Autor:
Shai Tsesses, Assaf Grinberg, Yoav Hazan, Evgeny Hahamovich, Amir Rosenthal, Resmi Ravi Kumar
Publikováno v:
IEEE Photonics Journal, Vol 11, Iss 3, Pp 1-11 (2019)
Ultrasound detection via silicon waveguides relies on the ability of acoustic waves to modulate the effective refractive index of the guided modes. However, the low photo-elastic response of silicon and silica limits the sensitivity of conventional s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3fdd378683d54dda42080d31c04b809e
http://arxiv.org/abs/1901.03987
http://arxiv.org/abs/1901.03987
Autor:
Resmi Ravi Kumar, Evgeny Hahamovich, Shai Tsesses, Yoav Hazan, Assaf Grinberg, Amir Rosenthal
Publikováno v:
Conference on Lasers and Electro-Optics.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::42ad6fedf9866272542aeba118849f3c
https://doi.org/10.1364/cleo_si.2019.sw3l.3
https://doi.org/10.1364/cleo_si.2019.sw3l.3
Publikováno v:
2015 International Conference on Smart Sensors and Systems (IC-SSS).
Fiber Bragg Grating (FBG) sensors have become one of the most widely used sensors in the recent times for a variety of applications in the fields of aerospace, civil, automotive, etc. It has been recently realized that FBG based accelerometer's perfo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fbf266b9187c1affeba0f5205ed29f56
https://doi.org/10.1109/smartsens.2015.7873608
https://doi.org/10.1109/smartsens.2015.7873608