用于量子、非线性与精密光子学的超低损耗 SiN 平台

该项目旨在研究氮化硅光子学中的光损耗问题，以期开发出低损耗平台，从而提升量子与非线性光子电路的性能。研究内容包括光学建模、器件制造以及实验表征，以建立可重复的高Q值谐振器及有效的损耗缓解策略。

About the project Optical loss sets the performance limits of quantum, nonlinear and precision photonic circuits. This project will develop an ultra-low-loss silicon nitride platform by linking loss mechanisms to fabrication and device design. Validated components and models will support reproducible high-Q resonators and advanced quantum computing applications. Ultra-low-loss silicon nitride (SiN) photonics enables long optical interaction lengths and high-Q resonators, supporting quantum light generation, nonlinear frequency conversion and precision sensing. Achieving these capabilities reproducibly requires control of material absorption, scattering and fabrication variability. This project aims to establish an ultra-low-loss SiN platform supported by validated fabrication processes and predictive device models. The central objective is to determine how material properties, waveguide geometry and processing conditions govern propagation loss and resonator performance. The research will combine optical modelling, fabrication studies and experimental characterisation to distinguish the contributions of sidewall roughness, material absorption and device geometry. Process and design variations will be evaluated systematically to identify routes to lower loss and quantify their reproducibility. Waveguide and resonator measurements will connect fabrication parameters to propagation loss, quality factor and device variability. These results will inform a process design kit (PDK) library containing high-Q resonators, with more than 1 million Q-factor, delay lines and filters, with models that incorporate measured performance and fabrication tolerances. A selected quantum, nonlinear or sensing demonstrator will test whether component-level improvements translate into application-level benefits. The expected contribution is a quantitative understanding of loss mechanisms, a reproducible fabrication approach and a validated library of low-loss photonic building blocks. Together, these outcomes will establish a reusable foundation for quantum, nonlinear and precision photonic circuits. Comprehensive training will be provided in photonic and optical modelling using Ansys Lumerical, COMSOL Multiphysics and Zemax, alongside full equipment training in the University of Southampton’s cleanroom facilities. You'll also receive hands-on training in optical measurements and silicon photonic chip testing, including optical alignment, fibre-to-chip coupling and device characterisation. Together, these activities will develop the skills required to design, fabricate and experimentally validate integrated photonic devices. The School of Optoelectronics (ORC) is committed to promoting equality, diversity inclusivity as demonstrated by our Athena SWAN award. We welcome all applicants regardless of their gender, ethnicity, disability, sexual orientation or age, and will give full consideration to applicants seeking flexible working patterns and those who have taken a career break. The University has a generous maternity policy, onsite childcare facilities, and offers a range of benefits to help ensure employees’ well-being and work-life balance. The University of Southampton is committed to sustainability and has been awarded the Platinum EcoAward.

入学要求 英国2:1荣誉学位学位，或其国际等效学位，需涵盖物理学或相关学科领域。

资助：竞争性资助 学费与资助 我们为英国本土学生和国际学生提供多种资助机会。符合条件的学生可通过“地平线欧洲”学费减免，自动免除国际学生学费与英国本土学生学费之间的差额。 大学通过竞争性遴选授予的校长助学金，为遴选排名靠前的申请人支付国际学生学费与英国本土学生学费之间的差额。 本校各学院通过竞争性遴选提供的博士奖助金，通常为遴选排名靠前的申请人支付按英国本土学生标准收取的学费，并提供生活津贴。 资助采用滚动授予方式，因此请尽早申请，以尽可能增加进入资助评选的机会。 如需了解更多信息，请访问我们的研究生研究资助页面。

如何申请 您需： 选择课程类型（研究型）、2027/28学年、工程与物理科学学院 选择全日制或非全日制 搜索博士项目 PhD ORC（7097） 在申请表第2部分填写导师姓名 申请材料应包括： 您的CV（个人简历） 2份学术推荐信 截至目前的学位课程成绩单和证书 英语语言资格证明（如适用）