Meta-surfaces are composed of an array of artificial nanostructures. The electromagnetic wave can be manipulated with its phase, polarization, and amplitude at will. Nowadays, the demand for photonics is extended from classical to quantum optics. With the advent of the post-Moore era, the fabrication technology of the semiconductor industry has faced the problem of the physical limitation approach. They have urgently needed to find out new methods and new physics to break through this dilemma. Quantum optics technology is the most suitable solution for this situation. Here, the design, fabrication, and application of the novel optical meta-devices are reported from classical to quantum optics in this talk. The meta-lens array with achromatism is used to demonstrate a light field system for imaging and sensing. The integrated meta-lens array is used to demonstrate a high dimensional quantum light source chip with excellent performance of quantum fidelity.
In recent years, Meta-lens has become a new type of optical device, showing excellent performance and novel applications. The nanoantennas of meta-lens can be used to control the phase, amplitude, and polarization at well. The phase part is the most important part of the function of the meta-lens. However, so far, the phase distribution of meta-lenses has not been directly measured, which further hinders the quantitative evaluation of their performance. We have developed an interferometric imaging phase measurement system for meta-lens and meta-devices. This system can measure the phase distribution by shooting the interference pattern. The phase distribution of meta-lenses can be measured to quantitatively characterize the imaging performance. Our meta-lens phase measurement system can help for designers to optimize the design, for manufacturers to identify defects, thereby improving the manufacturing process. This work will pave the way for meta-lens in industrial applications.
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