Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Chiral laser apparatus and method










Image Number 5 for United States Patent #6404789.

A chiral laser apparatus comprises a layered structure configured to produce a photonic stop band, the layered structure including a upper chiral material layer, a middle excitable light-emitting layer, and a lower chiral material layer and an excitation source that, when applied to the layered structure, causes the middle light-emitting layer to emit electromagnetic radiation, such that polarized lasing at a lasing wavelength occurs in a direction perpendicular to the layered structure. The middle light-emitting layer may be configured to produce a defect such that lasing advantageously occurs at a wavelength corresponding to a localized photonic state within the photonic stop band. The excitation source may be an electrical power source connected to the layered structure via two or more electrodes. In another embodiment of the invention, the layered structure is replaced with a homogeneous chiral material doped with a light-emitting material. Excitation sufficient to cause lasing is provided by the electrical power source via a pair of electrodes connected to the chiral material. In yet another embodiment of the invention, the excitation source may be an electromagnetic wave source that applies an electromagnetic wave to the middle light-emitting layer to excite the middle layer sufficiently to cause lasing.








 
 
  Recently Added Patents
Resin composition and molded article
Method and system for using personal devices for authentication and service access at service outlets
Statistical information collection from one or more device(s) in storage communication with a computing platform
Reception system including a mechanism countering pulsed interference
Auto-aligning spectroscopy system
Side portion of a circular saw blade
High productivity single pass scanning system
  Randomly Featured Patents
Benzoxadiazoles and benzothiadiazoles
Electrically controllable optical filter device
Density processing method
Method of and apparatus for casting metal strip employing a localized conditioning shoe
Systems and methods for displaying and visualizing information
Drum coater with forced recirculation of the material
Apparatus and method for updating digital maps
Measuring and dispensing system for solid dry flowable materials
Two-cycle lubricant containing solvent and high molecular weight polymer
Printer ink supply system