L
Liam Lewis
Researcher at Cork Institute of Technology
Publications - 24
Citations - 145
Liam Lewis is an academic researcher from Cork Institute of Technology. The author has contributed to research in topics: Grating & Coating. The author has an hindex of 5, co-authored 20 publications receiving 82 citations. Previous affiliations of Liam Lewis include Tyndall National Institute.
Papers
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Journal ArticleDOI
Realization of high-contrast gratings operating at 10 μm.
Brian Hogan,Stephen P. Hegarty,Liam Lewis,Javier Romero-Vivas,Tomasz J. Ochalski,Guillaume Huyet +5 more
TL;DR: A new material pairing is presented that can be used to realize high-contrast gratings at wavelengths of 10 μm and greater using only optical lithography, and it is experimentally shown that the spectral response of gratings that are fabricated using such a process show good agreement with theoretically predicted performance.
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Identification of dye content in colored BIC ballpoint pen inks by Raman spectroscopy and surface‐enhanced Raman scattering
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Investigating the Use of Ultraviolet Light Emitting Diodes (UV-LEDs) for the Inactivation of Bacteria in Powdered Food Ingredients.
TL;DR: In this article, the authors investigated the efficacy of UV-LED devices for the inactivation of four bacteria (Listeria monocytogenes, Escherichia coli, Bacillus subtilis and Salmonella Typhimurium) on a plastic surface and in four powdered seasoning ingredients (onion powder, garlic powder, cheese and onion powder and chilli powder).
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COVID-19: mask efficacy is dependent on both fabric and fit.
Steven Darby,Krishnakumar Chulliyallipalil,Milosz Przyjalgowski,Paddy McGowan,Simon Jeffers,Alan Giltinan,Liam Lewis,N. Smith,Roy D. Sleator +8 more
TL;DR: In this paper, a conical laser sheet is placed around the face of a medical dummy where it illuminates the aerosol emitted during a simulated breath, and the curved laser sheet highlights both penetration through the mask fabric and leakage around the edges of the mask.
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Metal nanoinks as chemically stable surface enhanced scattering (SERS) probes for the analysis of blue BIC ballpoint pens
Abeer Alyami,Daniela Saviello,Michael A. P. McAuliffe,Antonio Mirabile,Liam Lewis,Liam Lewis,Daniela Iacopino +6 more
TL;DR: Metal nanoinks constituted by Ag nanoparticles and Au nanorods were employed as probes for the Surface Enhanced Raman Scattering (SERS) analysis of a blue BIC ballpoint pen, allowing easy identification of phthalocyanine Blue 38 and triarylene crystal violet in the ink mixture.