Výsledky vyhledávání - "Lewis Fleming"

Microwave Plasma Assisted Magnetron Sputtering of Infrared Multilayer Thin Film Bandpass Filters for application in non-dispersive infrared gas sensors

Autor: Jonathan Pomfret, Des Gibson, Lewis Fleming, Shigeng Song, Greg McGann, Sam Ahmadzadeh, Peter Mackay

Publikováno v: Optical Interference Coatings Conference (OIC) 2022.

Infrared bandpass filters deposited using microwave plasma assisted pulsed DC magnetron sputtering are described. Thermo-optical and spectral properties across a range of environmental conditions suitable for use in NDIR gas sensors are demonstrated.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4c874467c1ddf18b300bf624f16db9b7
https://doi.org/10.1364/oic.2022.thc.7

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Tantalum Oxide and Silica Mixture Coatings Deposited Using Microwave Plasma Assisted Co-sputtering for Optical Mirror Coatings in Gravitational Wave Detectors

Autor: Shigeng Song, Sijia Cai, Daxing Han, Carlos García Nuñez, Gong Zhan, Gavin Wallace, Lewis Fleming, Kieran Craig, Stuart Reid, Iain Martin, Sheila Rowan, Des Gibson

Publikováno v: Optical Interference Coatings Conference (OIC) 2022.

This work presents the characterisation of optical and mechanical properties of thin films based on (Ta2O5)1-x(SiO2)x mixed oxides deposited by microwave plasma assisted co-sputtering to demonstrate their potential as optical coatings in gravitationa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ad49f2a4e76ef0bf62b9fe7a6163b734
https://doi.org/10.1364/oic.2022.wb.2

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High throughput microwave plasma assisted sputter deposition of linear variable filters and deployment into visible and near infrared spectrometers

Autor: Lewis Fleming, Des Gibson, Shigeng Song, David Hutson, Sam Ahmadzadeh, Sijia Cai, Daxing Han, Ewan Waddell, John Saffell

Publikováno v: Optical Interference Coatings Conference (OIC) 2022.

Fabrication of linear variable filter designs are demonstrated using a high throughput drum with linear sputter targets and static graded uniformity masks. Optical performances are characterised and functionality tested in 3D printed miniature spectr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d51b611cfd2472d29a49e4f604f99c55
https://doi.org/10.1364/oic.2022.thc.4

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Study of Amorphous Dielectric Optical Coatings Deposited by Plasma Ion Assisted Electron Beam Evaporation for Gravitational Wave Detectors

Autor: Carlos Garcia Nuñez, Gavin Wallace, Lewis Fleming, Kieran Craig, Shigeng Song, Sam Ahmadzadeh, Caspar Clark, Simon Tait, Iain Martin, Stuart Reid, Sheila Rowan, Des Gibson

Publikováno v: Optical Interference Coatings Conference (OIC) 2022.

This work presents the characterisation of optical and mechanical properties of Sc2O3, MgF2, and HfO2 thin films deposited by plasma ion assisted electron beam evaporation, evaluating their potential as mirror coatings in gravitational wave detectors

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9d2dcc0441be13e11ea2b3bea415f784
https://doi.org/10.1364/oic.2022.wb.4

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Broadband infrared absorber based on a sputter deposited hydrogenated carbon multilayer enhancing MOEMS based CMOS thermopile performance

Autor: Sam Ahmadzadeh, Des Gibson, Lewis Fleming, David Hutson, Greg Mcgann, Shigeng Song, Ameen Belke, Allan James, Stephen Wells, Alan Forsyth, Suzanne Bruckshaw

Publikováno v: Optical Interference Coatings Conference (OIC) 2022.

Absorber optical coating with maximised broadband infrared absorptance is deposited using pulsed DC sputter deposited hydrogenated carbon. Application to MOEMS CMOS thermopile device is demonstrated with thermopile device output increased 220%.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7e250babd1ee0e1c92892912663f89df
https://doi.org/10.1364/oic.2022.mc.4

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High throughput low cost closed field magnetron sputter deposition of durable reflectors based on dielectric overcoated metal for application in non-dispersive infrared gas sensors

Autor: Greig Oliver, Jonathan Pomfret, Des Gibson, Lewis Fleming, Sam Ahmadzadeh, Greg Mcgann, Shigeng Song, Parnia Navabpour, Hailin Sun, Peter Mackay

Publikováno v: Optical Interference Coatings Conference (OIC) 2022.

Optical & mechanical properties of closed-field magnetron pulsed DC sputter deposited Al, Au & Ag with Al2O3 protective layer are presented. Results show optical & durability performance suitable for use within NDIR optical gas sensors.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b5f8ea59311f98c1a5f564b32f6f18d9
https://doi.org/10.1364/oic.2022.wd.4

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Amorphous dielectric optical coatings deposited by plasma ion-assisted electron beam evaporation for gravitational wave detectors

Autor: Carlos Garcia Nuñez, Gavin Wallace, Lewis Fleming, Kieran Craig, Shigeng Song, Sam Ahmadzadeh, Caspar Clark, Simon Tait, Iain Martin, Stuart Reid, Sheila Rowan, Des Gibson

Publikováno v: Applied Optics. 62:B209

Coating thermal noise (CTN) in amorphous coatings is a drawback hindering their application in precision experiments such as gravitational wave detectors (GWDs). Mirrors for GWDs are Bragg’s reflectors consisting of a bilayer-based stack of high- a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1951cff28a04903967d892667cf8672d
https://doi.org/10.1364/ao.477186

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Broadband infrared absorber based on a sputter deposited hydrogenated carbon multilayer enhancing MEMS-based CMOS thermopile performance

Autor: Sam Ahmadzadeh, Des Gibson, Lewis Fleming, David Hutson, Shigeng Song, Allan James, Stephen Wells, Alan Forsyth, Suzanne Bruckshaw

Publikováno v: Applied Optics. 62:B79

Based on pulsed DC sputter deposition of hydrogenated carbon, an absorber optical coating with maximized broadband infrared absorptance is reported. Enhanced broadband (2.5–20 µm) infrared absorptance ( > 90 % ) with reduced infrared reflection is

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1ca70a5e1ee7ecdf4901c02184da8c71
https://doi.org/10.1364/ao.477050

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Tantalum oxide and silicon oxide mixture coatings deposited using microwave plasma assisted co-sputtering for optical mirror coatings in gravitational wave detectors

Autor: Shigeng Song, Sijia Cai, Daxing Han, Carlos García Nuñez, Gong Zhang, Gavin Wallace, Lewis Fleming, Kieran Craig, Stuart Reid, Iain W. Martin, Sheila Rowan, Des Gibson

Publikováno v: Applied Optics. 62:B73

This work presents the characterization of the optical and mechanical properties of thin films based on ( T a 2 O 5 ) 1 − x ( S i O 2 ) x mixed oxides deposited by microwave plasma assisted co-sputtering, including post-annealing treatments. The de

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c1ce9a0c16764b20b5a7ab9d984a6079
https://doi.org/10.1364/ao.477211

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Durable infrared optical coatings based on pulsed DC-sputtering of hydrogenated amorphous carbon (a-C:H)

Autor: Caspar Clark, Hin On Chu, Ryan Swindell, Mark Bailey, Des Gibson, Sam Ahmadzadeh, Stephen Sproules, Lewis Fleming, Xiaoling Zhang, Parnia Navabpour, Shigeng Song

Optical properties of low-temperature pulsed DC-sputter deposited ( ≤ 70 ° C ) hydrogenated carbon are presented. Increasing hydrogen incorporation into the sputter deposited carbon significantly decreases infrared optical absorption due to a decr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9205d8b455ce70ccfe6afaa1b464a13b
https://eprints.gla.ac.uk/212295/1/212295.pdf

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