Dr. Vishnu Kavungal Profile

Dr. Vishnu Kavungal

Visiting Research Associate at Technological Univ Dublin

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Author

Publications (5)

Proceedings Article | 4 March 2019 Paper

Sensing of multiple parameters with whispering gallery mode optical fiber micro-resonators

Arun Kumar Mallik, Vishnu Kavungal, Gerald Farrell, Yuliya Semenova

Proceedings Volume 10904, 109041W (2019) https://doi.org/10.1117/12.2513412

KEYWORDS: Sensors, Microresonators, Humidity, Temperature metrology, Optical fibers, Silica, Resonators, Sensing systems

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Proceedings Article | 23 April 2017 Paper

Compact relative humidity sensor based on an Agarose hydrogel coated silica microsphere resonator

Arun Kumar Mallik, Dejun Liu, Vishnu Kavungal, Xiaokang Lian, Gerald Farrell, Qiang Wu, Yuliya Semenova

Proceedings Volume 10323, 103230C (2017) https://doi.org/10.1117/12.2263529

KEYWORDS: Sensors, Humidity, Fiber optics sensors, Silica, Resonators, Microresonators, Coating, Numerical simulations, Spherical lenses, Optical spheres

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Proceedings Article | 30 May 2016 Paper

Porous silica coated spherical microresonator for vapor phase sensing of ammonia at a sub-ppm level

Arun Mallik, Gerald Farrell, Dejun Liu, Vishnu Kavungal, Qiang Wu, Yuliya Semenova

Proceedings Volume 9916, 99161Y (2016) https://doi.org/10.1117/12.2236486

KEYWORDS: Silica, Sensors, Microresonators, Fiber optics sensors, Spherical lenses, Optical resonators, Environmental sensing, Refractive index, Polymers, Resonators, Gas sensors

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Proceedings Article | 28 September 2015 Paper

Submicron accuracy fiber taper profiling using whispering gallery modes in a cylindrical fiber micro-resonator

Yuliya Semenova, Vishnu Kavungal, Qiang Wu, Gerald Farrell

Proceedings Volume 9634, 96343F (2015) https://doi.org/10.1117/12.2194986

KEYWORDS: Resonators, Profiling, Microresonators, Optical fibers, Spectroscopy, Geometrical optics, Scanning electron microscopy, Optical fabrication, Radio propagation, Control systems

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Proceedings Article | 2 June 2014 Paper

Study of whispering gallery modes in a cylindrical microresonator excited by a tilted fiber taper

Vishnu Kavungal, Lin Bo, Qiang Wu, Mianzhen Teng, Chongxiu Yu, Gerald Farrell, Yuliya Semenova

Proceedings Volume 9157, 91578N (2014) https://doi.org/10.1117/12.2059654

KEYWORDS: Microresonators, Resonators, Multimode fibers, Optical fibers, Fiber couplers, Sensors, Microscopes, Photonics, Optical communications, Telecommunications

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