About GOSFEL

The Consortium

The GOSFEL project is funded by the European Commission and is a collaborative project between four partners; the University of Exeter, the University of Augsburg, ETH Zurich and Norsk Elektro Optikk AS.  This project brings together leading groups, which have all the required major equipment and expertise, into an integrated focussed team to undertake this extremely challenging and high risk project. The consortium includes renowned centres of excellence in graphene science and technology (the University of Exeter), solid-state theory (the University of Augsburg) and quantum electronics, particularly semi conductor laser physics and engineering, including commercial exploitation (ETH Zurich).  In addition, Norsk Electro Optikk AS, a leading supplier of spectroscopy instruments, will provide an industrial view point and will help guide the research.  

The small size of the consortium will maximise the number of experimental iterations possible and help the timely feedback of experiment and theoretical results into the device design.  However the consortium is well linked to a wide network of academic collaborators, and is a FET Open Project, which will allow the project to benefit from the latest scientific discoveries and insights.

The Project

Current free electron lasers are large and expensive facilities. The recent isolation of graphene, in which electrons travel ballistically and at extremely high saturation velocities, has provided an exciting potential route for creating a compact solid state free electron laser. In this project we will first develop the theory for the operation of such a device and will use this to design and fabricate devices containing a suspended graphene active region. Metallic gratings will be patterned on top of, or below, the graphene to provide the modulation needed to accelerate/decelerate the electrons, causing the emission of radiation in the 0.2 to 10 THz range. We will then integrate an electromagnetic feedback cavity to enhance stimulated emission and to produce coherent radiation. The demonstration of such a room temperature source would challenge established notions of laser operation and would be a significant technological development.

Facts

Project acronym GOSFEL
Project name Graphene on Silicon Free Electron Laser
Start date October 2012
Finish date 30 April 2016

 

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