Porous Polyethylene Terephthalate Optical Waveguide for Sensing Applications
| Autor: | Wing Fat Ho, Hau Ping Chan, Valentin A. Tsvetkov |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Materials science
business.industry Physics::Medical Physics technology industry and agriculture Physics::Optics Isotropic etching Waveguide (optics) eye diseases Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Slot-waveguide chemistry.chemical_compound Optics chemistry Etching (microfabrication) Polyethylene terephthalate Fiber optic splitter Electrical and Electronic Engineering business Porous medium Refractive index |
| Zdroj: | IEEE Photonics Technology Letters. 25:1672-1675 |
| ISSN: | 1941-0174 1041-1135 |
| DOI: | 10.1109/lpt.2013.2273090 |
| Popis: | We report the fabrication and characterization of optical waveguides using porous polyethylene terephthalate (PET) film. An optical waveguide is produced by exposing the PET film to cyclotron followed by selective chemical etching. Considering that the average refractive index of porous regions is lower than that of non-porous regions, a waveguide can be formed using a single optical material system. A single-material channel waveguide and an optical splitter were demonstrated using our proposed technique. Through placing a liquid crystal inside the pores, an ethanol gas sensor was obtained with a single-material channel waveguide structure. These PET film waveguides can create new opportunities in various optical applications, particularly in chemical sensing applications. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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