Photonic band gap (PBG) materials are those periodic composites that possess spectral gaps in the frequency spectrum, in which electromagnetic waves cannot propagate in any direction within the material. Conventional PBG are based on Bragg scattering which limits the size of PBG structures for low-f.....
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This invention presents the fabrication of conductive microstructures embedded in polydimethylsioxane (PDMS) bulk material. The conducting composites are synthesized by mixing nano to micro-sized conductive particles with PDMS gel. Results show that such materials exhibit good electrical conductivit.....
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The present invention proposes a very simple approach for the decoration of carbon nanotubes (CNTs) with silver nanoparticles. CNTs are dispersed in ethylene glycol via ultrasonication, which is heated at 160oC and mixed with silver solution. The resulting silver-CNT nanohybrid comprises of carbon n.....
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A new type of liquid crystal display (LCD) is invented. Common LCDs are transmissive with a front and a back polarizer. For viewing in reflection, a diffuser and a mirror are added to the back of the LCD. The new LCD is a true reflective LCD where there is no rear polarizer. The LCD is simple in.....
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There are many types of bistable liquid crystal displays (LCDs). Among them, the bistable twisted nematic (BTN) LCD has one of the best optical properties with good contrast and brightness. This display relies on adjusting judiciously the cell thickness to liquid crystal pitch ratio to produce the.....
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