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Tailoring the electro-magnetic response of materials beyond naturally occurring properties is possible with the concept of meta-materials [1]. Subwavelength elements which are usually closely spaced can influence the electro-magnetic response and form a fundamental building block of modern optics. The influence of the spacing of the meta-atoms has been investigated for direct meta-materials [2] but...
We combine split ring resonators and high mobility two-dimensional electron gas (2DEG) into a THz metamaterial where we observe strong light-matter coupling between the cyclotron transition of the 2DEG and the split ring resonances. A strong change of the metamaterial transmission spectrum is observed as a function of the applied magnetic field, and a clear anticrossing behaviour is displayed by the...
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