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Hai-Lung Tsai

Researcher at Missouri University of Science and Technology

Publications -  152
Citations -  5549

Hai-Lung Tsai is an academic researcher from Missouri University of Science and Technology. The author has contributed to research in topics: Welding & Laser. The author has an hindex of 38, co-authored 152 publications receiving 4978 citations. Previous affiliations of Hai-Lung Tsai include University of Bridgeport & University of Minnesota.

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Fabrication of microlens arrays in photosensitive glass by femtosecond laser direct writing

TL;DR: In this paper, a plano-convex cylindrical and spherical microlens arrays were fabricated by modifying the microstructure of Foturan glass using femtosecond (fs) direct writing followed by thermal treatment, wet etching, and additional annealing.
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Ultra-Abrupt Tapered Fiber Mach-Zehnder Interferometer Sensors

TL;DR: A fiber inline Mach-Zehnder interferometer (MZI) consisting of ultra-abrupt fiber tapers was fabricated through a new fusion-splicing method, capable of in situ detection in many areas of interest such as environmental management, industrial process control, and public health.
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Femtosecond laser fabrication of long period fiber gratings and applications in refractive index sensing

TL;DR: In this paper, an improved point-by-point inscription method is proposed to fabricate long period fiber gratings (LPFGs) by using a laser operating at 800nm with 35-fs duration pulses.
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Investigation of transport phenomena and defect formation in pulsed laser keyhole welding of zinc-coated steels

TL;DR: In this paper, a mathematical model and the associated numerical techniques have been developed to study the transport phenomena and defect formation mechanisms in pulsed laser keyhole welding of zinc-coated steels.
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One-step fabrication of nanostructures by femtosecond laser for surface-enhanced Raman scattering.

TL;DR: An efficient fabrication of nanostructures on silicon substrates for surface-enhanced Raman scattering (SERS) using the femtosecond laser direct writing technique provides an opportunity to incorporate the SERS capability in a functional microchip.