Mr. Abhishek K. Kottaram Amrithanath Profile

Abhishek K. Kottaram Amrithanath

Physics Research at Northwestern Univ

SPIE Involvement:

Author

Publications (9)

Proceedings Article | 25 April 2023 Presentation + Paper

Multiscale multiphase 3D printing of photonic devices and sensors for system health monitoring

Abhishek Kottaram Amrithanath, Sridhar Krishnaswamy

Proceedings Volume 12488, 124880V (2023) https://doi.org/10.1117/12.2658502

KEYWORDS: Waveguides, 3D printing, Resonators, Polymers, Photonic devices, Erbium, Upconversion, Sensors, Nanoparticles, Photoresist materials

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SPIE Journal Paper | 28 March 2019

Functionalized fiber-optic long-period grating with reduced cladding size for humidity sensing

Heming Wei, Chee Tan, Abhishek Amrithanath, Sridhar Krishnaswamy

OE, Vol. 58, Issue 03, 037105, (March 2019) https://doi.org/10.1117/12.10.1117/1.OE.58.3.037105

KEYWORDS: Cladding, Sensors, Humidity, Fiber optics sensors, Fiber optics, Refractive index, Temperature metrology, Corrosion, Thin films, Single mode fibers

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Proceedings Article | 27 March 2019 Paper

A novel special optical waveguide structure with magneto-optic nonreciprocal phase shift under transversely applied magnetic field

Dengwei Zhang, Liang Cui, Heming Wei, Abhishek Kottaram Amrithanath, Sridhar Krishnaswamy, Xiaowu Shu

Proceedings Volume 10970, 1097030 (2019) https://doi.org/10.1117/12.2522615

KEYWORDS: Waveguides, Magnetism, Phase shifts, Magnetic sensors, Magneto-optics, Refractive index, Polymers, Light wave propagation, Sensors, Wave propagation

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Proceedings Article | 7 March 2019 Paper

Direct laser writing of optical biosensor based on photonic Floquet topological insulator for protein detection

Abhishek Kottaram Amrithanath, Heming Wei, Sridhar Krishnaswamy

Proceedings Volume 10895, 108950Y (2019) https://doi.org/10.1117/12.2511158

KEYWORDS: Waveguides, Light wave propagation, Multiphoton lithography, Refractive index, Optical biosensors, Biomedical optics, Optical simulations, Device simulation, Biosensors, Biosensing

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Proceedings Article | 4 March 2019 Paper

Direct laser writing of smart polymer photonic devices for ultrasound detection

Heming Wei, Abhishek Amrithanath, Sridhar Krishnaswamy

Proceedings Volume 10922, 109220F (2019) https://doi.org/10.1117/12.2511226

KEYWORDS: Sensors, Waveguides, Signal detection, Polymers, Photonic devices, Ultrasonics, Multiphoton lithography

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Proceedings Article | 27 February 2019 Paper

Multi-wavelength erbium-doped fiber ring lasers based on an optical fiber tip interferometer

Heming Wei, Abhishek Amrithanath, Sridhar Krishnaswamy

Proceedings Volume 10914, 1091420 (2019) https://doi.org/10.1117/12.2511227

KEYWORDS: Fiber lasers, Optical fibers, Sensors, Tunable lasers, Fabry–Perot interferometry, Optical filters

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Proceedings Article | 27 March 2018 Presentation + Paper

Grating based high-frequency ultrasonic sensors

Heming Wei, Abhishek Amrithanath, Sridhar Krishnaswamy

Proceedings Volume 10598, 105982K (2018) https://doi.org/10.1117/12.2296335

KEYWORDS: Sensors, Ultrasonics, Fiber Bragg gratings, Waveguides, Signal detection, Structural health monitoring, Bragg gratings, Two photon polymerization

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