Intuitive Understanding of Grating-Coupled Radiation Using Green's Function Methods

Friday, March 5, 2004 - 1:25pm - 3:00pm
Vincent 570
Curt Flory (Agilent Technologies)
Radiation scattered from diffraction gratings on the surface of waveguides is analyzed using the Volume Current Method. The framework allows separation of the effects of the grating array global periodicity and the effects of the specific shape of the individual grating elements. A straightforward analogy between the influence of the grating element shape and the behavior of phased-antenna array systems allows a clear and intuitive understanding of the effects of blazed gratings on the directionality of grating-coupled radiation.