GRK 1464: Micro- and Nanostructures in Optoelectronics and Photonics

光电子学和光子学是21世纪的关键技术，为生活的许多领域提供产品，包括通信、交通、医学、文化和娱乐。虽然通过光纤进行通信已经相当成熟，但液晶显示器或半导体激光二极管等产品目前的销量仍在大幅增长。帕德博恩大学是一所以“信息社会大学”为校训的知名大学，广泛支持光电子学和光子学中不可或缺的微纳米结构的基础、制造和应用研究。基于广泛的实验和理论研究项目，致力于材料特性，半导体物理，集成光学和光子学，光通信工程和传感器的表征，研究培训组将提供跨学科的学习计划，为博士生提供优秀的专业资格。相应的研究计划侧重于两种特定系统的制造，现象和应用，即周期结构和光学微谐振器。周期结构在集成光学中是必要的，以便有效地利用非线性光学特性（例如在周期性极化晶体中），并且可以用于改变甚至调整光学特性，有时以一种壮观的方式（光子晶体，超材料）。嵌入半导体纳米发射器的微谐振器显示出显著的光学效应，这不仅具有重要的基础意义，而且可以为无阈值激光器和单光子源的发展服务，例如，在光学数据传输或密码学中需要它们。

Optoelectronics and photonics are key technologies of the 21st century that provide products for many areas of life, including communication, traffic, medicine, culture and entertainment. While communication via optical fibers is pretty established, products like liquid crystal displays or semiconductor laser diodes are currently subject of a spectacular gain of sales. The University of Paderborn, a profile university with the motto "University of the Information Society", supports extensively research on fundamentals, manufacturing and applications of micro- und nanostructures that are indispensable in optoelectronics and photonics. Based on a broad spectrum of experimental and theoretical research projects devoted to characterisation of material properties, semiconductor physics, integrated optics and photonics, optical communication engineering and sensors, the Research Training Group will offer an interdisciplinary studying programme that provides an excellent professional qualification for PhD students. The corresponding research programme is focused on topical subjects concerning manufacturing, phenomena and applications of two particular kinds of systems, namely periodic structures and optical microresonators. Periodical structures are needed in integrated optics in order to use non-linear optical properties efficiently (e.g. in periodically poled crystals) and can be used in order to alter and even tailor optical properties, sometimes in a spectacular manner (photonic crystals, metamaterials). Microresonators with embedded semiconductor nanoemitters show remarkable optical effects that are not only of fundamental importance but may serve for the development of threshold-less lasers and single photon sources, which in turn are needed, for example, in optical data transmission or cryptography.