Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Duncan P. Hand"'
Publikováno v:
Sensors, Vol 21, Iss 22, p 7493 (2021)
In situ measurements are highly desirable in many microfluidic applications because they enable real-time, local monitoring of physical and chemical parameters, providing valuable insight into microscopic events and processes that occur in microfluid
Externí odkaz:
https://doaj.org/article/7fd5e41dc4d3463d9d6acf7a51b95909
Process Optimization for 100 W Nanosecond Pulsed Fiber Laser Engraving of 316L Grade Stainless Steel
Autor:
Stephen D. Dondieu, Krystian L. Wlodarczyk, Paul Harrison, Adam Rosowski, Jack Gabzdyl, Robert L. Reuben, Duncan P. Hand
Publikováno v:
Journal of Manufacturing and Materials Processing, Vol 4, Iss 4, p 110 (2020)
High average power (>50 W) nanosecond pulsed fiber lasers are now routinely available owing to the demand for high throughput laser applications. However, in some applications, scale-up in average power has a detrimental effect on process quality due
Externí odkaz:
https://doaj.org/article/e667240e22be4fa69cb166122d717e20
Autor:
Amir Jahanbakhsh, Krystian L. Wlodarczyk, Duncan P. Hand, Robert R. J. Maier, M. Mercedes Maroto-Valer
Publikováno v:
Sensors, Vol 20, Iss 14, p 4030 (2020)
Understanding transport phenomena and governing mechanisms of different physical and chemical processes in porous media has been a critical research area for decades. Correlating fluid flow behaviour at the micro-scale with macro-scale parameters, su
Externí odkaz:
https://doaj.org/article/efdd65b46dec48158419bdc27b14a1d3
Publikováno v:
Journal of Manufacturing and Materials Processing, Vol 3, Iss 1, p 14 (2019)
We provide experimental evidence that the laser beam scanning strategy has a significant influence on material removal rate in the ultrafast laser machining of glass. A comparative study of two laser beam scanning methods, (i) bidirectional sequentia
Externí odkaz:
https://doaj.org/article/5c8e594fbde344b1b2558a68ddb270d0
Autor:
Krystian L. Wlodarczyk, Richard M. Carter, Amir Jahanbakhsh, Amiel A. Lopes, Mark D. Mackenzie, Robert R. J. Maier, Duncan P. Hand, M. Mercedes Maroto-Valer
Publikováno v:
Micromachines, Vol 9, Iss 8, p 409 (2018)
Conventional manufacturing of microfluidic devices from glass substrates is a complex, multi-step process that involves different fabrication techniques and tools. Hence, it is time-consuming and expensive, in particular for the prototyping of microf
Externí odkaz:
https://doaj.org/article/c2e47e1fa3f642bf87265049b1de0c24
Autor:
Richard M. Carter, Fei Yu, William J. Wadsworth, Jonathan D. Shephard, Tim A. Birks, Jonathan C. Knight, Duncan P. Hand
Publikováno v:
Optics Express. 31:11805
An error on the part of the authors in drafting resulted in Eq. (3) being incorrect in the published paper [Opt. Express 25, 20612 (2017)10.1364/OE.25.020612]. We present a corrected version of the equation. It should be noted that this does not affe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0099574673e2195de6c2cd2607f313f0
https://doi.org/10.1364/oe.489024
https://doi.org/10.1364/oe.489024
Autor:
Jun Li, Jia Wei Li, Jia Rui Zhang, Kuo Li, Tian Ma, Wei Feng Wang, Xiao Wei Zhai, William N MacPherson, Robert R J Maier, Duncan P Hand
Publikováno v:
Measurement Science and Technology. 34:045105
Focused ion beam (FIB) machining has been demonstrated to be capable of fabricating nano- and micro-scale structures. In this paper we demonstrate techniques to design and fabricate 45° micro-mirrors into the end of multi-core fibres using FIB proce
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eedb15d11a90d09330b9f445355d5403
https://doi.org/10.1088/1361-6501/acad1b
https://doi.org/10.1088/1361-6501/acad1b
Autor:
Nathan Macleod, Samuel N. Hann, Adrian Dzipalski, Ian F. Elder, Ian J. Thomson, Nick Weston, Richard M. Carter, Robert A. Lamb, Duncan P. Hand, Michael Troughton, M. J. Daniel Esser
Publikováno v:
Optics Continuum. 1:2621
Ultrafast laser welding, hydroxide catalysis bonding (HCB) and adhesive bonding techniques were used to bond N-BK7 cubes to aluminum bases. Using a thermal chamber and polariscope, the stress induced birefringence was measured at temperatures from -5
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f2c146f692d8d71a410eae67e76e1778
https://doi.org/10.1364/optcon.473762
https://doi.org/10.1364/optcon.473762
Autor:
Wojciech S. Gora, Jesper V. Carstensen, Krystian L. Wlodarczyk, Mads B. Laursen, Erica B. Hansen, Duncan P. Hand
Publikováno v:
Materials
Materials; Volume 15; Issue 2; Pages: 448
Materials, Vol 15, Iss 448, p 448 (2022)
Materials; Volume 15; Issue 2; Pages: 448
Materials, Vol 15, Iss 448, p 448 (2022)
In recent years, there has been an increased uptake for surface functionalization through the means of laser surface processing. The constant evolution of low-cost, easily automatable, and highly repeatable nanosecond fibre lasers has significantly a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::82a8e9963b8560d7bd126fb516bc83a0
https://pubmed.ncbi.nlm.nih.gov/35057167
https://pubmed.ncbi.nlm.nih.gov/35057167
Autor:
Samuel N. Hann, Jake Sanwell, Richard M. Carter, Ian Elder, Robert Lamb, M. J. Daniel Esser, Duncan P. Hand
Publikováno v:
Applied Optics. 61:3312
We report the successful picosecond laser welding of AlSi and YAG. This material combination is of significant interest to the field of laser design and construction. Parameter maps are presented that demonstrate the impact of pulse energy and focal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0419f128893bc756f99b4bed512acf85
https://doi.org/10.1364/ao.447931
https://doi.org/10.1364/ao.447931