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Scientific article
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English

Magnetically tunable graphene-based reflector under linear polarized incidence at room temperature

Published inApplied physics letters, vol. 112, no. 15, 151103
Publication date2018-04-09
Abstract

At the terahertz spectrum, the 2D material graphene has diagonal and Hall conductivities in the presence of a magnetic field. These peculiar properties provide graphene-based structures with a magnetically tunable response to electromagnetic waves. In this work, the absolute reflection intensity was measured for a graphene-based reflector illuminated by linearly polarized incident waves at room temperature, which demonstrated the intensity modulation depth (IMD) under different magnetostatic biases by up to 15%. Experimental data were fitted and analyzed by a modified equivalent circuit model. In addition, as an important phenomenon of the graphene gyrotropic response, Kerr rotation is discussed according to results achieved from full-wave simulations. It is concluded that the IMD is reduced for the best Kerr rotation in the proposed graphene-based reflector.

Research group
Funding
  • UK Research and Innovation - Graphene Flexible Electronics and Optoelectronics [EP/K01711X/1]
Citation (ISO format)
YANG, Liang et al. Magnetically tunable graphene-based reflector under linear polarized incidence at room temperature. In: Applied physics letters, 2018, vol. 112, n° 15, p. 151103. doi: 10.1063/1.5022774
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Article (Published version)
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ISSN of the journal0003-6951
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