Resources Contact Us Home
Wave mode converter

Image Number 4 for United States Patent #4175830.

Mode converter for electromagnetic, light or infrared waves. This mode converter converts particle non-confining modes to particle confining modes. In a confining mode wave beam the phase of the wave with respect to time at a point of the beam having a given azimuth with respect to the beam axis is proportional to this azimuth. Two types of mode converter are disclosed. In the first type, the wave passes through a block of transparent isotropic material the thickness of which is proportional to the azimuth around the beam axis. In the second type, the converter is formed with triangular or sectoral plates of birefringent material and in each plate the slow and fast axes are given an adequate orientation.

  Recently Added Patents
Surface acoustic wave resonator for down-hole applications
Remote device pairing setup
Organic elelectroluminescent display
Radiation-emitting semiconductor chip and method for producing a radiation-emitting semiconductor chip
Computer product, information retrieval method, and information retrieval apparatus
Methods and compositions for improved F-18 labeling of proteins, peptides and other molecules
Neuronal differentiation-inducing peptide and use thereof
  Randomly Featured Patents
Sheet processing device
Heat-resistant brittle label
Coated orthopaedic implant components
Mower blade
Event-based system and process for recording and playback of collaborative electronic presentations
Compact rapid chilling system and method for reserving cold
Fixing device for fixing a seat to a vehicle floor, and a seat and a vehicle including such a fixing device
Decorative element for a shoe
Supply chain visibility solution architecture