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Proceedings Paper

Cost-effective neutral density filters from polydimethylsiloxane
Author(s): Ratthasart Amarit; Kosom Chaitavon; Sarun Sumriddetchkajorn
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Paper Abstract

A neutral density filter (ND) is one of the basic and important optical components used in optical and photographic systems for controlling intensity of light at all wavelengths. It is typically fabricated by coating appropriate thin films on glass or plastic substrates through an expensive time-consuming and power-hungry thin-film coating system. In this work, we show for the first time how very low-cost NDs can be implemented on a well-known Polydimethylsiloxane (PDMS) material widely used in microfluidic applications. PDMS-based NDs with 10-80% transmission and a broad wavelength operation in a visible spectrum are highlighted.

Paper Details

Date Published: 7 June 2013
PDF: 5 pages
Proc. SPIE 8883, ICPS 2013: International Conference on Photonics Solutions, 88830N (7 June 2013); doi: 10.1117/12.2020907
Show Author Affiliations
Ratthasart Amarit, National Electronics and Computer Technology Ctr. (Thailand)
Kosom Chaitavon, National Electronics and Computer Technology Ctr. (Thailand)
Sarun Sumriddetchkajorn, National Electronics and Computer Technology Ctr. (Thailand)


Published in SPIE Proceedings Vol. 8883:
ICPS 2013: International Conference on Photonics Solutions
Prathan Buranasiri; Sarun Sumriddetchkajorn, Editor(s)

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