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Personal profile

Education/Academic qualification

Aeronautics, Minor in Materials Science, PhD, California Institute of Technology

… → 1989

Aeronautics, MS, California Institute of Technology

… → 1984

Aeronautics, BTech, Indian Institute of Technology

… → 1983

Fingerprint Fingerprint is based on mining the text of the experts' scientific documents to create an index of weighted terms, which defines the key subjects of each individual researcher.

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ultrasonics Physics & Astronomy
Ultrasonics Engineering & Materials Science
sensors Physics & Astronomy
Fiber Bragg gratings Engineering & Materials Science
fibers Physics & Astronomy
Sensors Engineering & Materials Science
Lasers Engineering & Materials Science
Interferometry Engineering & Materials Science

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Grants 2003 2021

Photons
Fabrication
Lasers
Structural health monitoring
Photolithography
Photonics
Engines
Fabrication
Structural health monitoring
Lithography
Structural health monitoring
Photonics
Sensors
Fiber optic sensors
Optical fibers
circuit boards
photonics
fibers
Bragg gratings
interferometers

Research Output 1989 2019

3D Printing of Micro-Optic Spiral Phase Plates for the Generation of Optical Vortex Beams

Wei, H., Amrithanath, A. K. & Krishnaswamy, S., Apr 15 2019, In : IEEE Photonics Technology Letters. 31, 8, p. 599-602 4 p., 8660645.

Research output: Contribution to journalArticle

Microoptics
printing
Printing
Vortex flow
optics

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

Wei, H., Tan, C. L., Amrithanath, A. K. & Krishnaswamy, S., Mar 1 2019, In : Optical Engineering. 58, 3, 037105.

Research output: Contribution to journalArticle

Fiber optics
humidity
fiber optics
Atmospheric humidity
gratings
Ultrasonic reflection
roughness
ultrasonics
Surface roughness
reflectance

DNT detection using microspheres coated with NaYF4-Yb3+,Er3+-nanocrystals functionalized with PAA/PAH layers

Amrithanath, A. K., Wei, H. & Krishnaswamy, S., Jan 1 2018, Nano-, Bio-, Info-Tech Sensors, and 3D Systems II. Varadan, V. K. (ed.). SPIE, 105970C. (Proceedings of SPIE - The International Society for Optical Engineering; vol. 10597).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Microspheres
Nanocrystals
hydrochlorides
nanocrystals
whispering gallery modes

Grating based high-frequency ultrasonic sensors

Wei, H., Amrithanath, A. K. & Krishnaswamy, S., Jan 1 2018, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2018. SPIE, Vol. 10598. 105982K

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ultrasonic sensors
Bragg Grating
Gratings
Bragg gratings
Fiber Bragg gratings