CO2 laser manufacturing of miniaturised lenses for lab-on-a-chip systems
Data(s) |
21/07/2014
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Resumo |
This article describes the manufacturing and characterisation of plano-convex miniaturised lenses using a CO2 laser engraving process in PMMA substrates. The technique allows for lenses to be fabricated rapidly and in a reproducible manner at depths of over 200 µm and for lens diameters of more than 3 mm. Experimental characterisation of the lens focal lengths shows good correlation with theory. The plano-convex lenses have been successfully embedded into capillary microfluidic systems alongside planar microlenses, allowing for a significant reduction of ancillary optics without a loss of detection sensitivity when performing fluorescence measurements. Such technology provides a significant step forward towards the portability of fluorescence- or luminescence-based systems for biological/chemical analysis. |
Identificador | |
Idioma(s) |
eng |
Publicador |
MDPI |
Relação |
http://dro.deakin.edu.au/eserv/DU:30070718/mohammed-co2laser-2014.pdf http://www.dx.doi.org/10.3390/mi5030457 |
Direitos |
2014, The Authors |
Tipo |
Journal Article |