How It Works
Panorama Synergy is developing and commercialising a breakthrough technology involving the integration of magneto- photonics and nanotechnology. The embodiment of the technology is the Magneto Photonic Crystal (MPC) depicted here:
The MPC makes use of the Faraday/Kerr effects, whereby polarised light is rotated by traveling through a magnetic field. The degree of that rotation is determined by the strength of the magnetic field. To see how this example works…
- Light from a source enters a polarisation filter.
- The polarised light then passes through the coil-form (electromagnet) and the MPC and is rotated to a degree determined by the voltage applied. If no voltage is applied to the coil-form, no Faraday rotation takes place
- The polarised light now travels through a polarising filter which is oriented orthogonally to the LASER polarisation
- Output light intensity is dependent upon the degree of rotation.
The results are;
- At zero voltage applied across the coil-form, there is no Faraday rotation and no light passes through the polariser, creating a black state or pixel
- As the voltage is increased, so does the degree of Faraday rotation. As the degree of Faraday rotation increases, so does the amount of light that can pass through the polariser.
- At the maximum voltage, the degree of Faraday rotation is maximised and all the light passes through the polariser creating a full intensity pixel
Magneto-photonic crystals provide:
- RGB colour filtering
- Bandwidth control Polarisation amplification through nano-stacking schemes
- Optical switching speeds in the 15 nanosecond range
- Digital control providing more than 1024 grey levels
- Very low power requirements
- Thermal stability
