Sample interview questions: Have you worked on any projects involving the development of new optical materials?
Sample answer:
Yes, I have extensive experience in the development of novel optical materials. My research has focused primarily on the synthesis and characterization of metamaterials, which are人工engineered materials with tailored optical properties that cannot be found in naturally occurring materials.
One of my most significant projects involved the development of a new type of metamaterial that exhibits negative refractive index (NRI). Traditional materials have a positive refractive index, which means that light bends towards the normal when it passes from a high-index medium to a low-index medium. In contrast, NRI materials bend light away from the normal, resulting in a number of unusual optical effects.
I designed and fabricated a metamaterial consisting of an array of metallic nanorods embedded in a dielectric host. The nanorods were arranged in a periodic pattern that created a resonant response at a specific wavelength of light. When light at this wavelength impinges on the metamaterial, it excites a collective osci… Read full answer