It is understood that the characteristics of traditional microelectronics technology is to rely on integrated electronic devices to provide higher information processing speed, storage density and on-chip integrability and other capabilities. However, due to the bottleneck of nanometer size, integrated electronic devices have begun to be restricted.
The computer is slow, the mobile phone has a short standby time, and the latest ipad4 body is very hot. In life, these problems of electronic products can be seen everywhere. A major breakthrough has been made in the field of photonic circuits replacing integrated circuits, which is expected to solve the above problems.
It is understood that the characteristics of traditional microelectronics technology is to rely on integrated electronic devices to provide higher information processing speed, storage density and on-chip integrability and other capabilities. However, due to the bottleneck of nanometer size, integrated electronic devices have begun to be restricted. Parallel to the development of microelectronics technology, another high-tech optoelectronic technology shows great potential and advantages in achieving integrated photonic circuits, interconnected optical paths, and optical computing. It may be an important new generation of information technology to replace integrated circuits. Pillars, the key point of this technology is how to realize that people manipulate photons like electrons on a nano-scale highly integrated chip.
Silicon photonic chip
Surface plasmons (SPPs) are an electromagnetic mode formed by the interaction of free electrons and photons in the metal surface area. They are often referred to as information carriers capable of transmitting photons by wires. It is developing a new generation of optoelectronic integration technology. It plays an important role, but how to realize the transmission control of SPPs on nano-sized chips is an international research hotspot in this field.
In the article, Yuan Xiaocong proposed a brand-new SPPs coupling method. Through a series of sub-wavelength herringbone micro-nano metal structures, it solves the technical problems that the polarization state of incident light seriously affects the coupling efficiency of SPPs and the SPP propagation direction cannot be accurately controlled. The new reconfigurable directional coupling mechanism of SPPs has been achieved. The research results have a significant positive effect on the generation, transmission, regulation, interconnection and detection of SPPs at the level of micro-nano photonic chips, and will develop large-scale optoelectronic integration and interconnection technologies for SPPs in the future. Foundation.
When talking about the future application prospects of photonic circuits, in recent years, how to make photonic circuits replace integrated circuits has become a major hot and difficult point in the field of optical research. The faster the chip speed of electronic products, the higher the integration, the greater the energy consumption, and the body is more likely to heat up. Replacing traditional electronic chips with photonic chips has broad application prospects in the future. On the one hand, photonic chips are of great help in reducing energy consumption and pollution; on the other hand, because the photon propagation speed far exceeds that of electronics, it will also meet the needs of users for the running speed and standby time of electronic products.
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