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.
Original language | English |
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Title of host publication | Proceedings of SPIE |
Volume | 7764 |
Publisher | SPIE - International Society for Optical Engineering |
Publication date | 2010 |
DOIs | |
Publication status | Published - 2010 |
Event | Nanoengineering: Fabrication, Properties, Optics, and Devices VII - San Diego, CA, United States Duration: 3 Aug 2010 → 4 Aug 2010 |
Conference
Conference | Nanoengineering: Fabrication, Properties, Optics, and Devices VII |
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Country/Territory | United States |
City | San Diego, CA |
Period | 03/08/2010 → 04/08/2010 |
Keywords
- Liquid core waveguides
- UV surface modification
- Self assembly
- Nanoprous polymers