Cost-effective neutral density filters from polydimethylsiloxane

Ratthasart Amarit; Kosom Chaitavon; Sarun Sumriddetchkajorn

doi:10.1117/12.2020907

7 June 2013 Cost-effective neutral density filters from polydimethylsiloxane

Ratthasart Amarit, Kosom Chaitavon, Sarun Sumriddetchkajorn

Proceedings Volume 8883, ICPS 2013: International Conference on Photonics Solutions; 88830N (2013) https://doi.org/10.1117/12.2020907
Event: International Conference on Photonics Solutions 2013, 2013, Pattaya City, Thailand

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.

Citation Download Citation

Ratthasart Amarit, Kosom Chaitavon, and Sarun Sumriddetchkajorn "Cost-effective neutral density filters from polydimethylsiloxane", Proc. SPIE 8883, ICPS 2013: International Conference on Photonics Solutions, 88830N (7 June 2013); https://doi.org/10.1117/12.2020907

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