Light emission from electrically controlled hyperbolic media

An apparatus, comprising:

• a substrate;
• contacts for introducing a bias voltage to the apparatus;
• and
• multiple hyperbolic strips through which electrons drift in response to the bias voltage;
• wherein Cherenkov radiation in the form of surface plasmon polaritons is emitted when the electrons couple with photonic modes of the hyperbolic strips.

An apparatus, comprising:

• a substrate;
• contacts for introducing a bias voltage to the apparatus;
• multiple hyperbolic layers through which electrons drift in response to the bias voltage;
• and
• one or more matching layers that emit Cherenkov radiation in the form of photons when the electrons couple with photonic modes of the hyperbolic layers.

A method of generating Cherenkov radiation (CR), the method comprising:

• fabricating one or more two-dimensional graphene-based hyperbolic media;
• and
• applying a bias voltage to the hyperbolic media;
• wherein electrons flowing through the hyperbolic media are coupled with broadband hyperbolic photonic modes to emit the CR.

A method of generating Cherenkov radiation (CR), comprising:

• fabricating one or more two-dimensional graphene-based hyperbolic media;
• and
• applying a bias voltage to the hyperbolic media;
• wherein electrons flowing through the hyperbolic media are coupled with broadband hyperbolic photonic modes to emit the CR.