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
Algorithm for color corrected analog dimming in multi-color LED system
Semiconductor apparatus
Driving support device, method, and program
Linear transformer power supply
High-resolution ranging and location finding using multicarrier signals
Use of deuterium oxide for the treatment of virus-based diseases of the respiratory tract
Adaptive non-positive inductor current detector (ANPICD)
  Randomly Featured Patents
Performance indicator for compressor analogs
Measuring cell voltages of a fuel cell stack
Microporous membrane made of non-crystalline polymers and method of producing the same
Solid state polymeric electrolyte for electrochemical devices
Outer sheath layer for power or communication cable
Hydrocarbon refrigerant and detergent composition
Integrated proof flow system and method
Printer with interchangeable printing heads
Method and apparatus for rewinding emulated memory circuits
Mouth to mouth resuscitation device