Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Vishnu Kavungal"'
Publikováno v:
Optical Fiber Technology. 50:50-54
A novel design principle and fabrication method for whispering gallery mode optical multiple-resonator arrays have been proposed and demonstrated. The proposed design involves an inline cascade of optical micro-resonators (ICOMRs) coupled to multiple
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::71708738de1e2ae8fddfad345c061a4f
https://doi.org/10.1016/j.yofte.2019.02.012
https://doi.org/10.1016/j.yofte.2019.02.012
Publikováno v:
Articles
This paper experimentally demonstrates a method for geometrical profiling of asymmetries in fabricated thin microfiber tapers with waist diameters ranging from ∼10 to ∼50 µm with submicron accuracy. The method is based on the analysis of whisper
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::64426178ff23237a3a296182ba2c928c
https://doi.org/10.1016/j.yofte.2018.01.007
https://doi.org/10.1016/j.yofte.2018.01.007
Publikováno v:
Scientific Reports, Vol 8, Iss 1, Pp 1-10 (2018)
Articles
Scientific Reports
Articles
Scientific Reports
A silica gel coated microsphere resonator is proposed and experimentally demonstrated for measurements of ammonia (NH3) concentration in air with ultra-high sensitivity. The optical properties of the porous silica gel layer change when it is exposed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4047b76913b9cd4eab74e7a441f57304
http://link.springer.com/article/10.1038/s41598-018-20025-9
http://link.springer.com/article/10.1038/s41598-018-20025-9
Publikováno v:
Conference Papers
Monitoring of multiple physical parameters, such as humidity, temperature, strain, concentrations of certain chemicals or gases in various environments is of great importance in many industrial applications both for minimizing adverse effects on huma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cf2ab5931f76954b6267baa3f431cb1b
https://arrow.tudublin.ie/context/prccon/article/1001/viewcontent/ProcSPIE_Submitted.pdf
https://arrow.tudublin.ie/context/prccon/article/1001/viewcontent/ProcSPIE_Submitted.pdf
Publikováno v:
Conference Papers
This paper presents a novel approach to measurements of low relative humidity (RH) values based on the whispering gallery modes (WGMs) effect in a small silica microsphere coated with a thin layer of Agarose hydrogel. The light from a narrow-linewidt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e786df00d651e640c5b4c4d220e1e170
A Packaged Whispering Gallery Mode Strain Sensor Based on a Polymer-Wire Cylindrical Micro Resonator
Publikováno v:
Articles
We propose a whispering gallery mode (WGM) strain sensor formed by a polymer-wire cylindrical micro resonator for strain measurement applications. WGMs are generated by evanescently coupling light into the polymer-wire resonator from a silica fiber t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e022fc890deb10935ef5f68b257a41af
https://nrl.northumbria.ac.uk/id/eprint/34096/1/Paper_2_Modified_OFT_Submitted.pdf
https://nrl.northumbria.ac.uk/id/eprint/34096/1/Paper_2_Modified_OFT_Submitted.pdf
Autor:
Dejun Liu, Qiang Wu, Vishnu Kavungal, Gerald Farrell, Yuliya Semenova, Arun Kumar Mallik, Manjusha Ramakrishnan
Publikováno v:
Articles
A novel fiber optic sensing configuration for simultaneously measuring ammonia vapor (NH3) concentration and relative humidity (RH) in air is proposed and experimentally demonstrated. The system comprised two silica whispering gallery mode (WGM) micr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8614739920face7de67d50c46c3074b6
https://arrow.tudublin.ie/context/radart/article/1061/viewcontent/Whispering_gallery_mode_micro_resonators_for_multi_parameter_sensing_applications.pdf
https://arrow.tudublin.ie/context/radart/article/1061/viewcontent/Whispering_gallery_mode_micro_resonators_for_multi_parameter_sensing_applications.pdf
Publikováno v:
Articles
Whispering gallery modes (WGMs) excitation in a cylindrical microresonator formed by a section of silica optical fiber has been studied. Evanescent light coupling into the microresonator is realized using a tapered optical fiber, fabricated by a micr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2e4701aa19697dee8f832512e7b07403
https://arrow.tudublin.ie/engscheleart2/182
https://arrow.tudublin.ie/engscheleart2/182
Autor:
Yuliya Semenova, Vishnu Kavungal, Peter Kopcansky, Sudad S. Ahmed, Gerald Farrell, Aseel I. Mahmood, Vlasta Zavisova
Publikováno v:
Articles
An all-fiber magnetic field sensor based on whispering-gallery modes (WGM) in a fiber micro-resonator infiltrated with ferronematic liquid crystal is proposed and experimentally demonstrated. The cylindrical microresonator is formed by a 1 cm-long se
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a28477491fcf57600b91f6ad02e8ec9
https://pubmed.ncbi.nlm.nih.gov/28786578
https://pubmed.ncbi.nlm.nih.gov/28786578
Autor:
Vishnu Kavungal, Qiang Wu, Arun Kumar Mallik, Gerald Farrell, Yuliya Semenova, Dejun Liu, Xiaokang Lian
Publikováno v:
SPIE Proceedings.
In this paper, we propose a novel approach to measurements of low relative humidity (RH) levels based on the whispering gallery modes (WGMs) phenomenon in a silica microsphere resonator coated with Agarose. The spectral dips of the WGM resonances exc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8214e77db1b4edc78d17230b009018ae
https://doi.org/10.1117/12.2263529
https://doi.org/10.1117/12.2263529