👉 Optical Fluid (Opt-Fluid) is a type of soft, non-Newtonian fluid that changes its viscosity in response to light exposure. When unexposed, Opt-Fluid behaves like a liquid with a relatively low viscosity, allowing it to flow easily. However, when exposed to light, particularly ultraviolet (UV) light, it undergoes a chemical transformation that increases its viscosity, causing it to behave more like a gel or even a solid. This reversible property makes Opt-Fluid useful in various applications, including self-healing materials, adaptive optics, and smart coatings that can adjust their properties based on environmental light conditions.
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What is the definition of Optical Fluid? 🙋
👉 Optical fluids, also known as photonic liquids or metamaterials with tailored optical properties, are engineered materials that manipulate light in unique ways. They consist of a matrix of dielectric or metallic nanoparticles dispersed in a host medium, typically a liquid. These particles are designed to interact with light at specific wavelengths, enabling precise control over light's propagation, reflection, and absorption. This manipulation is achieved through phenomena like localized surface plasmon resonance in metallic particles or dielectric resonances in nanoparticles, allowing optical fluids to exhibit properties such as negative refractive index, perfect lensing, and cloaking. These materials find applications in advanced optics, including ultra-compact lenses, optical sensors, and stealth technologies.
