Di-block co-polymer derived nanoporous polymer liquid core waveguides

Mads B. Christiansen; Nimi Gopalakrishnan; Kaushal S. Sagar; Sokol Ndoni; Anders Kristensen

doi:10.1117/12.860805

27 August 2010 Di-block co-polymer derived nanoporous polymer liquid core waveguides

Mads B. Christiansen, Nimi Gopalakrishnan, Kaushal S. Sagar, Sokol Ndoni, Anders Kristensen

Proceedings Volume 7764, Nanoengineering: Fabrication, Properties, Optics, and Devices VII; 77640J (2010) https://doi.org/10.1117/12.860805
Event: SPIE NanoScience + Engineering, 2010, San Diego, California, United States

Abstract

Nanoporous liquid core waveguides are fabricated by selectively UV modifying a nanoporous polymer. The starting point is a diblock polymer where 1,2-polybutadiene (PB) molecules are bound to PDMS. When the PB is cross linked it self-assembles into PB with a network of 14 nm diameter PDMS filled pores. When the PDMS is etched, the hydrophobic PB is left with a porosity of 44%. The polymer is subsequently UV exposed through a shadow mask. This renders the exposed part hydrophilic, making it possible for water to infiltrate these areas. Water infiltration raises the refractive index, thus forming a liquid core waveguide. Here we present both the fabrication scheme and characterization results for the waveguides.

Citation Download Citation

Mads B. Christiansen, Nimi Gopalakrishnan, Kaushal S. Sagar, Sokol Ndoni, and Anders Kristensen "Di-block co-polymer derived nanoporous polymer liquid core waveguides", Proc. SPIE 7764, Nanoengineering: Fabrication, Properties, Optics, and Devices VII, 77640J (27 August 2010); https://doi.org/10.1117/12.860805

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