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Femtosecond laser directed fabrication of optical diffusers
Optical diffusers are widely used in filament lamps, imaging systems, display technologies, lasers, and Light Emitting Diodes (LEDs). Here, a method for the fabrication of optical diffusers through femtosecond laser machining is demonstrated. Float glass surfaces were ablated with femtosecond laser...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Royal Society of Chemistry
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6112377/ https://www.ncbi.nlm.nih.gov/pubmed/30174826 http://dx.doi.org/10.1039/c7ra00109f |
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author | Alqurashi, Tawfiq Penchev, Pavel Yetisen, Ali K. Sabouri, Aydin Ameen, Rayan M. Dimov, Stefan Butt, Haider |
author_facet | Alqurashi, Tawfiq Penchev, Pavel Yetisen, Ali K. Sabouri, Aydin Ameen, Rayan M. Dimov, Stefan Butt, Haider |
author_sort | Alqurashi, Tawfiq |
collection | PubMed |
description | Optical diffusers are widely used in filament lamps, imaging systems, display technologies, lasers, and Light Emitting Diodes (LEDs). Here, a method for the fabrication of optical diffusers through femtosecond laser machining is demonstrated. Float glass surfaces were ablated with femtosecond laser light to form nanoscale ripples with dimensions comparable to the wavelength of visible light. These structures produce highly efficient and wide field of view diffusers. The machined patterns altered the average surface roughness, with the majority of particles in the range of a few hundred nanometers. The optical diffusion characteristic and a maximum diffusion angle of near 172° was achieved with optimum machining parameters. The transmission performance of the diffusers was measured to be ∼30% across the visible spectrum. The demonstrated technique has potential for producing low-cost large area optical devices. The process benefits from the flexibility of the laser writing method and enables the production of custom optical diffusers. |
format | Online Article Text |
id | pubmed-6112377 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-61123772018-08-30 Femtosecond laser directed fabrication of optical diffusers Alqurashi, Tawfiq Penchev, Pavel Yetisen, Ali K. Sabouri, Aydin Ameen, Rayan M. Dimov, Stefan Butt, Haider RSC Adv Chemistry Optical diffusers are widely used in filament lamps, imaging systems, display technologies, lasers, and Light Emitting Diodes (LEDs). Here, a method for the fabrication of optical diffusers through femtosecond laser machining is demonstrated. Float glass surfaces were ablated with femtosecond laser light to form nanoscale ripples with dimensions comparable to the wavelength of visible light. These structures produce highly efficient and wide field of view diffusers. The machined patterns altered the average surface roughness, with the majority of particles in the range of a few hundred nanometers. The optical diffusion characteristic and a maximum diffusion angle of near 172° was achieved with optimum machining parameters. The transmission performance of the diffusers was measured to be ∼30% across the visible spectrum. The demonstrated technique has potential for producing low-cost large area optical devices. The process benefits from the flexibility of the laser writing method and enables the production of custom optical diffusers. Royal Society of Chemistry 2017-03-22 2017-03-24 /pmc/articles/PMC6112377/ /pubmed/30174826 http://dx.doi.org/10.1039/c7ra00109f Text en This journal is © The Royal Society of Chemistry 2017 http://creativecommons.org/licenses/by/3.0/ This article is freely available. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence (CC BY 3.0) |
spellingShingle | Chemistry Alqurashi, Tawfiq Penchev, Pavel Yetisen, Ali K. Sabouri, Aydin Ameen, Rayan M. Dimov, Stefan Butt, Haider Femtosecond laser directed fabrication of optical diffusers |
title | Femtosecond laser directed fabrication of optical diffusers
|
title_full | Femtosecond laser directed fabrication of optical diffusers
|
title_fullStr | Femtosecond laser directed fabrication of optical diffusers
|
title_full_unstemmed | Femtosecond laser directed fabrication of optical diffusers
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title_short | Femtosecond laser directed fabrication of optical diffusers
|
title_sort | femtosecond laser directed fabrication of optical diffusers |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6112377/ https://www.ncbi.nlm.nih.gov/pubmed/30174826 http://dx.doi.org/10.1039/c7ra00109f |
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