Terahertz high-harmonic generation in graphene-metamaterial

Engineering graphene-based devices with exceptional nonlinear optical properties in the terahertz (THz) region play a crucial role in the advancement of THz technologies. We investigate how a metamaterial system consisting of a plasmonic structure enhances THz light-graphene interaction, thus leading to a higher nonlinearity in graphene. A variety of the plasmonic structures will be used to enhance driven THz field and efficiently generate high-harmonics in single-layer/multi-layer graphene. We will also explore how to isolate a weak third harmonic signal from graphene by using spectral filters and enhance its “signal-to-noise” ratio. The project relies on the use of a high-energy laser at the University of Bayreuth and high-field THz setup to drive graphene samples. Some of the samples will be fabricated and optimized on-site using nanofabrication equipment.

Faculty Supervisor:

Jean-Michel Ménard

Student:

Partner:

Universität Bayreuth

Discipline:

Physics

Sector:

Quantum Science; Advanced Manufacturing; Nanotechnology

University:

University of Ottawa

Program: