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Technique Could Simplify Photonic Crystal Formation

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A new method could allow scientists to custom-grow defect-free photonic crystals. A team from Princeton University and Columbia University created computer models demonstrating the technique, adding precisely sized chains of polymers to a colloidal suspension. While the creation of solids via colloidal suspension is not a new idea, the researchers said this was the first time the technique has been shown to be viable for creating a crystal pure enough to split light for an optical circuit. Colloids form the initial two layers of a crystal (left). When a third layer is added,...Read full article

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