Electrowetting manipulation of any optical film
2007; American Institute of Physics; Volume: 90; Issue: 25 Linguagem: Inglês
10.1063/1.2750544
ISSN1520-8842
AutoresLinlin Hou, Neil Smith, Jason Heikenfeld,
Tópico(s)Biosensors and Analytical Detection
ResumoElectrowetting manipulation of any optical film is reported. A square channel was constructed with four sidewall electrodes, coated with a hydrophobic dielectric, and filled with saline and oil. In a first experiment a dielectric mirror film was suspended between the oil/saline meniscus. Electrowetting at each sidewall produced a saline contact angle change of 35°<θ<170°. This change in contact angle tilted the mirror and ±105° of laser beam deflection was achieved. A second experiment utilized a Mylar film imprinted with a diffraction grating (625lines∕mm). Electrowetting tilting of the grating was shown to alter the diffraction of the laser beam.
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