Resources Contact Us Home
Band-pass filter and method for making photonic crystal for the band-pass filter

Image Number 12 for United States Patent #8149073.

A band-pass filter includes a photonic crystal having a local mode that generates a pass band in a stop band formed by Bragg reflection, a transmission channel that limits electromagnetic waves propagating in the photonic crystal to a mode in which an amplitude direction of an electrical field is a particular direction; and a magnetic field-applying unit for applying to the photonic crystal a DC magnetic field in a direction perpendicular to a propagation direction of the electromagnetic waves. The photonic crystal includes a periodic structure including a low permittivity dielectric member and a plurality of high permittivity dielectric members periodically arranged in the low permittivity dielectric member so that the Bragg reflection occurs in the periodic structure, and a magnetic member disposed in the periodic structure.

  Recently Added Patents
Data driver and liquid crystal display device using the same
Methods and compositions for improving photodynamic therapy through administration of lipids
Method and apparatus for management and analysis of services in VoIP networks
Systems and methods for adaptive error thresholds or adaptive modulation schemes based on atmospheric conditions
External preparation composition for skin comprising ginseng flower or ginseng seed extracts
Transferring a document
Network based technique for obtaining operator identifier for mobile devices
  Randomly Featured Patents
Memory control device
Blind rivet
Anti-snoring device
Lighting fixture
Optical communication systems and methods of operating such optical communication systems
Method and system for storing data
Structural enclosed rotor configuration for electric machine
Hinge with offset pivot line
Temperature compensating outdoor wall padding apparatus and method for forming the same
Hapten compositions