Polaritonics for Quantum Technology Applications

这个项目的目的是在极化电子学的新的跨学科研究领域内开发几个革命性的新器件概念，该领域研究晶体中光与电子激发的相互作用。自2000年以来，该项目的PI领导着Polaritonics的国际合作努力，协调随后涉及15所以上大学的三个欧洲网络项目。这一合作已经产生了许多壮观的发现，包括混合轻物质准粒子的玻色-爱因斯坦凝聚，晶体中的超流特性，自旋多稳定性，超低阈值极化激子激光。极化电子学的发展是由理论引领的，它预测新的效应，设计新的结构，提出新的实验。该项目提出了一个与国际实验工作紧密联系的理论研究计划，旨在弥合极化电子学基础发现和设备应用之间的差距。我们将开发、实现和实验测试几种器件概念，包括Aharonov-Bohm偏振干涉仪和基于偏振激光的垂直腔相干太赫兹光源。这些器件的制造将体现出光电子学的技术突破，将量子相干效应带入日常生活。新的量子光源和逻辑门对于实现光计算机和提高光通信线路的容量具有重要意义。紧凑型相干太赫兹辐射源在医学(皮肤癌治疗)、环境保护、工业传感、安全等领域有着广泛的应用。南安普顿大学将协调Polaritonics的跨国研究工作，接待Polaritonics的顶尖专家进行短期访问，组织一系列国际研讨会，并与日立、夏普、东芝等多家工业公司密切合作。

This project is aimed at development of several revolutionary new device concepts within the new interdisciplinary research area of Polaritonics, which studies interaction of light with electronic excitations in crystals. PI of this project leads an international collaborative effort in Polaritonics since 2000 coordinating three subsequent European network projects which involve over 15 universities. This collaboration has already yielded a number of spectacular discoveries including the Bose-Einstein condensation of mixed light-matter quasiparticles, features of superfluidity in crystals, spin multistability, ultralow threshold polariton lasing. Development of Polaritonics is led by theory, which predicts new effects, designes new structures and proposes new experiments. This project proposes a program of theoretical research tightly linked with an international experimental effort and aimed at bridging the gap between fundamental discoveries and device applications in Polaritonics. We shall develop and realise and experimentally test several device concepts including the Aharonov-Bohm polariton interferometer and the vertical cavity coherent terahertz light source based on a polariton laser. Fabrication of these devices would manifest a technology breakthrough in opto-electronics with quantum coherent effects brought into everyday life. The new quantum light sources and logic gates are important for realisation of optical computers and enhancement of capacities of optical communication lines. Compact sources of coherent terahertz radiation have their applications in medicine (skin cancer cure), environment protection, industrial sensing, security. The Southampton university will coordinate a multinational research effort in Polaritonics, host leading experts in Polaritonics for short visits, organise a series of international workshops and closely collaborate with several industrial companies including Hitachi, Sharp, Toshiba.