Search Results - "Hand, D.P."

Ultra-Wideband Bandpass Filter With Multiple Notch Bands Using Nonuniform Periodical Slotted Ground Structure by Zhang-Cheng Hao, Jia-Sheng Hong, Parry, J.P., Hand, D.P.

“…A novel ultra-wideband (UWB) bandpass filter that is capable of integrating multiple notch bands is proposed in this paper. A multilayer nonuniform periodical…”
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Laser Bonding of Glass to Silicon Using Polymer for Microsystems Packaging by Bardin, F., Kloss, S., Changhai Wang, Moore, A.J., Jourdain, A., De Wolf, I., Hand, D.P.

“…Laser joining is a promising technique for wafer-level bonding. It avoids subjecting the complete microelectromechanical system (MEMS) package to a high…”
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Measuring beam quality of hollow core photonic crystal fibers by Shephard, J.D., Roberts, P.J., Jones, J.D.C., Knight, J.C., Hand, D.P.

“…In this paper, the authors measure the quality of the delivered beam from hollow core photonic crystal fibers (HC-PCFs). The M 2 parameter is determined, and…”
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Laser surface texturing for high friction contacts by Dunn, A., Wlodarczyk, K.L., Carstensen, J.V., Hansen, E.B., Gabzdyl, J., Harrison, P.M., Shephard, J.D., Hand, D.P.

“…•LST used on both faces of contact to increase static friction coefficient.•Extremely high static friction coefficients obtained by laser surface…”
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Label-free ferrule-top optical fiber micro-cantilever biosensor by Li, J., Zhou, Y.X., Guo, Y.X., Wang, G.Y., Maier, R.R.J., Hand, D.P., MacPherson, W.N.

“…•Design and fabrication of polymer micro-cantilevers onto the end of standard single mode fibers using ns-laser machining Combination of sensing probe with…”
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Corrigendum to “Silica hollow core microstructured fibres for mid-infrared surgical applications” [NOC 377C (2013) 236–239] by Urich, A., Maier, R.R.J., Yu, Fei, Knight, J.C., Hand, D.P., Shephard, J.D.

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An optical fibre dynamic instrumented palpation sensor for the characterisation of biological tissue by Li, J., Hammer, S.J., Shu, W.M., Maier, R.R.J., Hand, D.P., Reuben, R.L., MacPherson, W.N.

“…•We developed an optical-fibre sensor/actuator for measuring soft tissue stiffness.•A Fabry–Pérot interferometer is formed below a dynamically actuated…”
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Silica hollow core microstructured fibres for mid-infrared surgical applications by Urich, A., Maier, R.R.J., Yu, Fei, Knight, J.C., Hand, D.P., Shephard, J.D.

“…In this paper two silica hollow core microstructured fibres (Negative Curvature Fibre and Photonic Bandgap Fibre) are presented with attenuations of 0.06dB/m…”
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Wafer-level packaging of silicon to glass with a BCB intermediate layer using localised laser heating by Lorenz, N., Smith, M.D., Hand, D.P.

“…Adhesive wafer-level bonding is an excellent solution to meet the stringent requirements in micro-electro-mechanical systems (MEMS) packaging, one of the…”
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Melt ejection during laser drilling of metals by Voisey, K.T., Kudesia, S.S., Rodden, W.S.O., Hand, D.P., Jones, J.D.C., Clyne, T.W.

“…In laser drilling of metals, melt ejection can be a significant mechanism of material removal. Vaporisation within the hole creates high pressure gradients,…”
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noninvasive optical system for the measurement of xylem and phloem sap flow in woody plants of small stem size by Helfter, C, Shephard, J.D, Martinez-Vilalta, J, Mencuccini, M, Hand, D.P

“…Over the past 70 years, heat has been widely used as a tracer for estimating the flow of water in woody and herbaceous plants. However, most commercially…”
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Three-dimensional polymer optical waveguide interleaver with selectable channel spacing by Wu, Qiang, Chan, H.P., Chu, Pak L., Hand, D.P.

“…A polymer optical waveguide interleaver with selectable channel spacing and adjustable flat top based on a three-dimensional structure is reported. This…”
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A comprehensive study of the long pulse Nd:YAG laser drilling of multi-layer carbon fibre composites by Rodden, W.S.O, Kudesia, S.S, Hand, D.P, Jones, J.D.C

“…The results of an extensive experimental study of the free running Nd:YAG laser drilling of a multi-layer carbon fibre composite, where adjacent layers have…”
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Analysis of a Y-junction optical waveguide interleaver by Wu, Qiang, Chan, H.P., Chu, Pak L., Hand, D.P., Yu, Chongxiu

“…A Y-junction optical planar lightwave circuit (PLC) interleaver is analyzed and a polymeric interleaver is fabricated. This interleaver is composed of two…”
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Compact tunable three-dimensional polymer optical waveguide comb filter by Wu, Qiang, Chan, H.P., Chu, Pak L., Yu, Chongxiu, Hand, D.P.

“…A compact channel spacing tunable polymeric three-dimensional (3D) comb filter has been designed and fabricated. This comb filter is made of three waveguides…”
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A direct-writing approach to the micro-patterning of copper onto polyimide by Ng, J.H.-G., Desmulliez, M.P.Y., Lamponi, M., Moffat, B.G., McCarthy, A., Suyal, H., Walker, A.C., Prior, K.A., Hand, D.P.

“…Purpose - The purpose of this paper is to present a novel manufacturing process that aims to pattern metal tracks onto polyimide at atmospheric pressure and…”
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A directwriting approach to the micropatterning of copper onto polyimide by Ng, J.H.G., Desmulliez, M.P.Y., Lamponi, M., Moffat, B.G., McCarthy, A., Suyal, H., Walker, A.C., Prior, K.A., Hand, D.P.

“…Purpose The purpose of this paper is to present a novel manufacturing process that aims to pattern metal tracks onto polyimide at atmospheric pressure and…”
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CO2 laser processing of alumina (Al2O3) printed circuit board substrates by MOORHOUSE, Colin J, VILLARREAL, Francisco, WENDLAND, Jozef J, BAKER, Howard J, HALL, Denis R, HAND, Duncan P

“…A new processing technique for scribing alumina has been developed, which exploits the fast response of the laser to produce novel temporal pulse shapes, which…”
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Generation of Mid-IR continuum using tellurite microstructured fiber by Delmonte, T., Watson, M.A., O'Driscoll, E.J., Feng, X., Monro, T.M., Finazzi, V., Petropoulos, P., Price, J.H.V., Baggett, J.C., Loh, W., Richardson, D.J., Hand, D.P.

“…We demonstrate the production of a well depleted mid-IR continuum with a spectral range between ~0.9 - 2.5 mum using a tellurite wagon wheel microstructured…”
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Towards the creation of quasi-phasematched devices using femtosecond laser micromachining by Campbell, S., Ramsay, E., Hand, D.P., Reid, D.T.

“…The feasibility of using femtosecond laser micro-machining to create Gallium Arsenide (GaAs) quasi-phasematched devices from single GaAs wafers is…”
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