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When scientists discovered that laser pulses can rapidly cause refractive index changes in the medium, resulting in "photonic time crystals (PTC)" in the near-visible light band, the door to a disruptive new application in optics seemed to quietly open.Scientists have a certain degree of understanding of photonic crystals and time crystals, the two have almost nothing in common, the basic common p...
Recently, the research team of Chang Lin from the School of Electronics of Peking University and the research team of Li Wangzhe from the Aerospace Information Research Institute of the Chinese Academy of Sciences published a research article entitled "Microcomb synchronized optoelectronics" online in Nature Electronics, realizing the application of photonic chip clocks in information systems for ...
Screen Innovations has added a short focal lift electric screen solution to its component and material series, meeting the growing demand for large but hidden displays in small media rooms and company boards.Unlike traditional projection systems that require sufficient distance from the projector to the screen or perform best in a darkroom, pop-up laser TVs are only a few inches away from short fo...
Researchers from the Laser Processing Group of the IO-CSIC Institute of Optics in Spain report on the application of multi-purpose femtosecond laser interference in high-precision silicon nanostructures. The related research was published in Optics&Laser Technology with the title "Versatile femtosecond laser interference pattern applied to high precision nanostructured of silicon".Highlights:...
近日,从江苏通用半导体有限公司传来消息,由该公司自主研发的国内首套的8英寸碳化硅晶锭激光全自动剥离设备正式交付碳化硅衬底生产领域头部企业广州南砂晶圆半导体技术有限公司,并投入生产。 图:8英寸SiC晶锭激光全自动剥离设备 该设备可实现6英寸和8英寸碳化硅晶锭的全自动分片,包含晶锭上料、晶锭研磨、激光切割、晶片分离和晶片收集,一举填补了国内碳化硅晶锭激光剥离设备领域研发、制造的市场空白,突破了国外的技术封锁,将极大地提升我国碳化硅芯片产业的自主化、产业化水平。 该设备年可剥离碳化硅衬底20000片,实现良率95%以上,与传统的线切割工艺相比,大幅降低了产品损耗,而设备售价仅仅是国外同类产品的1/3。 近年来,碳化硅功率器件在大功率半导体市场中所占的份额不断提高,并被广泛应用于新能源汽车、城市轨道交通、风力发电、高速移动、物联网等一系列领域...