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
Systems and methods for identifying similar documents
Apparatus and method for foreground detection
Radiation imaging device
Method and device for surface scanning of a patient
System and method for deriving cell global identity information
Distributed IP-PBX signal processing
Power collecting device, power measuring device, and power collecting method
  Randomly Featured Patents
Laser light source, image display apparatus, and processing apparatus
Self-balancing wheeled vehicle
Stimulation control for brain stimulation
Collapsible rifle rest
Semiconductor package with a die attach adhesive having silane functionality
Coded image recording medium
Automatic firmware upgrade for a thin client using one or more FTP servers
Magnetic angular position sensor with two magnetically sensitive components arranged proximate two target tracks having complimentary magnetic and nonmagnetic segments