A5065501043- Advanced Fiber Optic Sensors
- Photonic and Optical Devices
- Semiconductor Lasers and Optical Devices
- Analytical Chemistry and Sensors
- Advanced Fiber Laser Technologies
- Nutritional Studies and Diet
- Fault Detection and Control Systems
- Photonic Crystal and Fiber Optics
- Nuclear reactor physics and engineering
- Image Enhancement Techniques
- Color Science and Applications
- Experimental Learning in Engineering
- Electromagnetic Compatibility and Noise Suppression
- 3D IC and TSV technologies
- Optical Network Technologies
- Innovative Teaching Methods
- Advanced Surface Polishing Techniques
- Silicone and Siloxane Chemistry
- Luminescence and Fluorescent Materials
- Electronic Packaging and Soldering Technologies
- Gender and Technology in Education
- Lanthanide and Transition Metal Complexes
- Nuclear Physics and Applications
University of Pittsburgh
2021-2025
Purdue University West Lafayette
2024
National Energy Technology Laboratory
2023
We present a highly reproducible method of fabricating tapered intrinsic Fabry–Perot interferometer (IFPI) device with 5–6 <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$\mu \text{m}$ </tex-math></inline-formula> diameter at the taper waist. A femtosecond laser was applied to inscribe an IFPI 3-cm cavity length in single-mode fiber. CO2 laser-heated tapering process enabled by digitally controlled mirrors...
Knowing the amounts of energy and nutrients in an individual's diet is important for maintaining health preventing chronic diseases. As electronic AI technologies advance rapidly, dietary assessment can now be performed using food images obtained from a smartphone or wearable device. One challenges this approach to computationally measure volume bowl image. This problem has not been studied systematically despite being most utilized container many parts world, especially Asia Africa. In...
This paper reports in-pile testing results of radiation-resistant fiber Bragg grating (FBG) sensors at high temperatures, intense neutron irradiation environments, and machine learning methods for radiation-induced sensor drift mitigation reactor anomaly identification. The was carried out in an MIT test 180 days a nominal operational temperature 640°C flux. show that FBG inscribed by femtosecond laser random airline pure silica can withstand harsh environments the core but exhibit...
In this Innovative Practice Full Paper we present an approach where coupled several proven pedagogical practices to enhance student engagement during the time of remote/hybrid instruction due COVID-19 pandemic. One these approaches was team-based learning throughout entire semester which aided in motivation. A second practice implemented game-based drive and excitement. This used a semester-long scoring system allowed students compete for bonus points both on individual team basis. enabled...
This article presents an economically viable, sensitivity-optimized fluorescence sensor for detecting low concentrations of fluorophores in the visible spectrum range. The employs a deep ultraviolet (DUV) 275-nm light-emitting diode (LED) and dichroic mirror to establish co-axial optical path excitation emission. Instead utilizing general-purposed spectrometer optimized high spectral resolution, strikes balance between resolution sensitivity by using appropriate aperture size design tailored...
We report a CO 2 laser fabrication method to produce tapered intrinsic Fabry-Perot interferometer (IFPI) device with 5~6-um diameter of the taper waist transmission losses <0.3dB at 1550nm for sensing application.
Fiber optic sensor inscribed in radiation-harden fibers can withstand high neutron flux an operating nuclear reactor. Machine-learning algorithm using temporal convolutional networks was used to mitigate drift and abnormal event prediction.
This paper introduces a fluorometer that is both economically viable and optimized for sensitivity. The sensor designed to detect low concentrations of fluorophores in the visible spectrum range, utilizing deep ultraviolet (DUV) 275-nm LED dichroic mirror establish co-axial optical path excitation emission. Unlike traditional general-purpose spectrometers, this achieves balance between two through an appropriate aperture size tailored design spectral characteristics fluorophores. manuscript...