Silicon photonics is the manipulation of light (photons) in silicon-based substrates, analogous to electronics, which is the manipulation of electrons. The development cycle of a silicon photonics device consists of three stages: design, fabrication, and characterisation. Whilst design and characterisation can readily be done by research groups around the country, the fabrication of silicon photonics devices, circuits and systems requires large scale investments and capital equipment such as cleanrooms, lithography, etching equipment etc. Based at the Universities of Southampton and Glasgow, CORNERSTONE 2.5 will provide world-leading fabrication capability to silicon photonics researchers and the wider science community. Whilst silicon photonics is the focus of CORNERSTONE 2.5, it will also support other technologies that utilise similar fabrication processes, such as MEMS or microfluidics, and the integration of light sources with silicon photonics integrated circuits, as well as supporting any research area that requires high-resolution lithography. The new specialised capabilities available to researchers to support emerging applications in silicon photonics are: 1) quantum photonics based on silicon-on-insulator (SOI) wafers; 2) programmable photonics; 3) all-silicon photodetection; 4) high efficiency grating couplers for low energy, power sensitive systems; 5) enhanced sensing platforms; and 6) light source integration to the silicon nitride platform. Access will be facilitated via a multi-project-wafer (MPW) mechanism whereby multiple users' designs will be fabricated in parallel on the same wafer. This is enabled by the 8" wafer-scale processing capability centred around a deep-UV projection lithography scanner installed at the University of Southampton. The value of CORNERSTONE 2.5 to researchers who wish to use it is enhanced by a network of supporting companies, each providing significant expertise and added value to users. Supporting companies include process-design-kit (PDK) software specialists (Luceda Photonics), reticle suppliers (Compugraphics, Photronics), packaging facilities (Tyndall National Institute, Bay Photonics, Alter Technologies), a mass production silicon photonics foundry (CompoundTek), an epitaxy partner for germanium-on-silicon growth (IQE), fabrication processing support (Oxford Instruments), an MPW broker (EUROPRACTICE), a III-V die supplier (Sivers Semiconductors) and promotion and outreach partners (Photonics Leadership Group, EPIC, CSA Catapult, CPI, Anchored In). Access to the new capabilities will be free-of-charge to UK academics in months 13-18 of the project, and 75% subsidised by the grant in months 19-24. During the 2-year project, we will also canvas UK demand for the capability to continue to operate as an EPSRC National Research Facility, and if so, to establish a Statement of Need.

The 2015 UK National Security Strategy identifies cyber security as one of the top four UK national security priorities. The UK National Cyber Security Strategy 2016-2021 (NCSS) has an underlying vision to make the UK secure and resilient to cyber threats, prosperous and confident in the digital world. It is widely recognised that the UK, indeed the world, is short of cyber security specialists. Cyber security is genuinely cross-disciplinary. It's about technology, and the networks and systems within which technology is deployed. But it's also about society and how it engages with technology. Researching the right questions requires researchers to fully understand the integrated nature of the cyber security landscape. A CDT provides the perfect vehicle within which suitably broad training can be provided. The establishment of a cohort of researchers with different backgrounds and experience allows this knowledge to be cultivated within a rich environment, where the facts of hard science can be blended with the perspectives and nuances of more social dimensions. While society has made progress in developing the technology that underpins security, privacy and trust in cyberspace, we lag behind in our understanding of how society engages with this technology. Much more fundamentally, we don't even really understand how society engages with the concepts of security, privacy and trust in the first place. We will host a CDT in Cyber Security for the Everyday, which signals that research in our CDT will focus on the technologies deployed in everyday digital systems, as well as the everyday societal experience of security. Research in our CDT will investigate the security of emerging technologies. As cyberspace continues to evolve, so, too, do the technologies required to secure its future. Research topics include the cryptographic tools that underpin all security technologies, the security of the systems within which these tools are deployed, the use of artificial intelligence to aid discovery of system vulnerabilities, and security and privacy of everyday objects which are becoming embedded in cyberspace. Our CDT will also research how to secure cyber societies. Securing increasingly networked, automated, and autonomous societies requires an integrated research approach which engages the social, technological, cultural, legal, social-psychological and political on equal terms. Research topics include exploring state, institutional and corporate responsibility over how information is gathered and used, investigating how cyber security is perceived, understood and practiced by different communities, and researching how social differences and societal inequalities affect notions of, and issues relating to, cyber security. Our training programme will be based around a suite of relevant masters programmes at Royal Holloway, including in Information Security, Geopolitics and Security, and Data Science. This will be supplemented by workshops, practice labs, and a comprehensive generic skills programme. Students will work closely with the wider cyber security community through a series of industry engagement sessions and visits, summer projects, and three-month internships. Peer-to-peer learning will be fostered through group challenges, workshop design and delivery, reading groups and a social programme.