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
Method and apparatus for web crawling
Method for olympic event hospitality program management
Organic light emitting diode display device and method of fabricating the same
Generation, display, and manipulation of measurements in computer graphical designs
Sensor coating
Behavioral fingerprint based authentication
Restore software with aggregated view of content databases
  Randomly Featured Patents
Method of making a MIM capacitor with self-passivating plates
Method of making a rock-pore micromodel involving generation of an accurate and reliable template image of an actual reservoir rock pore system
Selective semiconductor coating and protective mask therefor
Blackjack and poker game combination
Aircraft constant-velocity transmission rotor
Treating the surface of articles by electrical brush discharge
Portable ramp with pad and stabilizers
Preparation and use of Inula extracts as a fungicide for the control of plant diseases
Method of the preparation of macroporous foam comprising zeolite or zeotype material
Stage apparatus