Prof. Francis Placido Profile

Prof. Francis Placido

Professor and Director of the Thin Films Ctr at Univ of the West of Scotland

SPIE Involvement:

Conference Program Committee | Author

SPIE Journal Paper | 3 April 2014

Fiber-coupled polarization independent liquid crystal Fabry–Perot tunable filter

Sivan Isaacs, Francis Placido, Ibrahim Abdulhalim

OE, Vol. 53, Issue 04, 047101, (April 2014) https://doi.org/10.1117/12.10.1117/1.OE.53.4.047101

KEYWORDS: Liquid crystals, Dielectric polarization, Beam splitters, Tunable filters, Optical fibers, Wave plates, Mirrors, Optical filters, Polarization, Prisms

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Proceedings Article | 4 October 2011 Paper

Enhancement of omnidirectional bandgaps by one-dimensional ternary photonic crystals

G. Morozov, F. Placido

Proceedings Volume 8168, 81681L (2011) https://doi.org/10.1117/12.896441

KEYWORDS: Photonic crystals, Crystals, Binary data, Refractive index, Magnetism, Reflectors, Polarization, Transmittance, Dielectric polarization, Dielectrics

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Proceedings Article | 4 October 2011 Paper

Protective infrared antireflection coating based on sputtered germanium carbide

Des Gibson, Ewan Waddell, Frank Placido

Proceedings Volume 8168, 816804 (2011) https://doi.org/10.1117/12.896686

KEYWORDS: Germanium, Sputter deposition, Ions, Multilayers, Antireflective coatings, Coating, Refractive index, Zinc, Forward looking infrared, Plasma

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Proceedings Article | 25 September 2008 Paper

An in-situ investigation of the surface oxidation of ultra-thin films of Ni and Hf

Shigeng Song, Frank Placido

Proceedings Volume 7101, 710120 (2008) https://doi.org/10.1117/12.803870

KEYWORDS: Oxygen, Metals, Nickel, Plasma, Reflectivity, Microwave radiation, Oxides, Thin films, Atmospheric plasma, Oxidation

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SPIE Journal Paper | 1 February 2007

Multilayer complex optical filters prepared by reactive evaporation

M. Asghar, Francis Placido, S. Naseem

OE, Vol. 46, Issue 02, 023802, (February 2007) https://doi.org/10.1117/12.10.1117/1.2538299

KEYWORDS: Optical filters, Multilayers, Thin films, Optical engineering, Scanning electron microscopy, Bandpass filters, Image filtering, Particles, Optics manufacturing, Refractive index

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Proceedings Article | 28 August 2006 Paper

Characterisation of optical thin films obtained by plasma ion assisted deposition

Frank Placido, Des Gibson, Ewan Waddell, Edward Crossan

Proceedings Volume 6286, 628602 (2006) https://doi.org/10.1117/12.681027

KEYWORDS: Plasma, Ions, Refractive index, Thin films, Optical coatings, Absorption, Tantalum, Magnetism, Thin film deposition, Titanium dioxide

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Proceedings Article | 1 February 2006 Paper

The optical properties of titanium oxide films prepared by dc reactive magnetron sputtering

Li-Jian Meng, V. Teixeira, H. Cui, Frank Placido, Z. Xu, M. dos Santos

Proceedings Volume 6034, 603409 (2006) https://doi.org/10.1117/12.668092

KEYWORDS: Sputter deposition, Transmittance, Refractive index, Light scattering, Optical properties, Glasses, Reflectivity, Titanium, Oxides, Thin films

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Proceedings Article | 18 May 2005 Paper

Surface characterization and surface energy measurements on boron phosphide films prepared by PECVD

Abraham Ogwu, Thomas Hellwig, Saul Doherty, David Haddow, Klaus-Peter Mollman, Frank Placido

Proceedings Volume 5786, (2005) https://doi.org/10.1117/12.603327

KEYWORDS: Boron, Plasma enhanced chemical vapor deposition, Atomic force microscopy, Scanning electron microscopy, X-rays, Photoemission spectroscopy, Surface roughness, Optoelectronics, X-ray microscopy, Manufacturing

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Proceedings Article | 18 May 2005 Paper

Electrochemical investigation of the stability and corrosion resistance of boron phosphide films prepared by PECVD

Abraham Ogwu, Thomas Hellwig, Saul Doherty, David Haddow, Klaus-Peter Moellman, Francis Placido

Proceedings Volume 5786, (2005) https://doi.org/10.1117/12.603337

KEYWORDS: Corrosion, Resistance, Boron, Polarization, Plasma enhanced chemical vapor deposition, Coating, Electrodes, Chemical analysis, Dielectric spectroscopy, Polishing

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Proceedings Article | 26 September 2003 Paper

Corrosion resistance potential of boron phosphide films in a naval environment

David Haddow, A. Ogwu, Francis Placido

Proceedings Volume 5078, (2003) https://doi.org/10.1117/12.488502

KEYWORDS: Germanium, Corrosion, Resistance, Semiconductors, Electrodes, Boron, Carbon, Diamond, Aluminum, Optical coatings

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SPIE Journal Paper | 1 December 2002

Operation of lateral effect photosensitive position sensors using differential time delay mode

I. Abdulhalim, S. Millward, G. Moores, L. Firth, Francis Placido

OE, Vol. 41, Issue 12, (December 2002) https://doi.org/10.1117/12.10.1117/1.1518505

KEYWORDS: Signal to noise ratio, Modulation, Sensors, Position sensors, Light sources, Electrodes, Amplifiers, Optical amplifiers, Inspection, Time metrology

Proceedings Article | 29 November 2000 Paper

Microwave-assisted reactive sputtering of aluminum oxynitrides

Francis Placido, Zhenhui Gou, Chris Rebecchi

Proceedings Volume 4086, (2000) https://doi.org/10.1117/12.408478

KEYWORDS: Oxygen, Aluminum, Sputter deposition, Oxides, Optical filters, Optical coatings, Nitrogen, Microwave radiation, Plasma, Argon

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Proceedings Article | 29 November 2000 Paper

Aluminum oxynitride rugate filters grown by reactive rf sputtering

Zhenhui Gou, Francis Placido

Proceedings Volume 4086, (2000) https://doi.org/10.1117/12.408382

KEYWORDS: Sputter deposition, Optical coatings, Aluminum, Argon, Refractive index, Optical filters, Oxygen, Optical properties, Laser safety equipment, Absorbance

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Proceedings Article | 26 July 1999 Paper

Aluminum nitride coatings for protection of diamond at high-temperature in air

Stephen McGeoch, Ewan Waddell, Caspar Clark, Francis Placido, Zhenhui Gou, Christopher Wort, James Savage

Proceedings Volume 3705, (1999) https://doi.org/10.1117/12.354619

KEYWORDS: Diamond, Particles, Aluminum nitride, Optical coatings, Solids, Chemical vapor deposition, Zinc, Aluminum, Resistance, Transmittance

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Proceedings Article | 19 August 1996 Paper

Graded-index films using aluminum oxynitrides

Francis Placido, John Russell, Zhenhui Gou

Proceedings Volume 2776, (1996) https://doi.org/10.1117/12.246822

KEYWORDS: Aluminum, Refractive index, Optical filters, Glasses, Oxygen, Sputter deposition, Nitrogen, Scanning electron microscopy, Optical coatings, Particles

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Showing 5 of 15 publications

Conference Committee Involvement (4)

Advances in Optical Thin Films VIII

8 April 2024 | Strasbourg, France

Advances in Optical Thin Films VII

13 September 2021 | Online Only, Spain

Advances in Optical Thin Films VI

14 May 2018 | Frankfurt, Germany

Advances in Optical Thin Films IV

5 September 2011 | Marseille, France

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