2月18日,北京大学电子学院、鹏城实验室、上海科技大学、国家信息光电子创新中心等研究团队在《自然》(Nature)发表论文《集成光子学赋能超宽带光纤-无线通信》(Integrated photonics enabling ultra-wideband fibre–wireless communication),报告他们采用集成光学方案,实现了250GHz以上超大带宽的光电/电光转换器件,薄膜铌酸锂调制器(TFLNMZM)和磷化铟探测器(InP UTC-PD)带宽均创纪录;同时,基于上述器件实现了“光纤-无线一体化融合”系统演示,光纤通信实现破纪录的单通道256Gbaud(512Gbps)信号传输,太赫兹无线通信实现破纪录的单通道400Gbps信号传输,并完成了86路8K高清实时视频的无线传输演示。
When I was talking about the power of smell on the radio, Speth, a Welsh speaker from Manchester, got in touch to say that in Welsh you can hear a smell as well as smell it. At first this sounded charming, if far-fetched. But the more I thought about it, the more sense it made. While I can’t – in English, anyway – exactly hear the smell of that Black Country bike shop in 1977, I can smell, hear and see it very clearly. I can feel it too. I can feel the shop man’s grip as he lifts me into the saddle. And I can hear him saying to my grandad: “Blimey, he’s a lump, isn’t he?” Ever sensitive about my weight, that was a sour note. But I’ll let it pass, because all I can feel, then and now, is the general joy.
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他直言反對「安靜復興」理論:「一般來說,我們通常專注於自己的研究,不會去評論其他機構的工作。」
第五十二条 公安机关和有关主管部门依照本法和有关法律法规,并根据国家缔结、参加的国际条约或者按照平等互惠原则,对在境外或者利用境外网络资源对中华人民共和国及其公民或者机构实施网络犯罪活动,或者我国公民在境外实施我国法律禁止的网络犯罪活动,开展网络犯罪防治国际执法合作。