title: Absorbing boundary conditions for low group velocity electromagnetic waves in photonic crystals.
abstract: We present an efficient method for the absorption of slow group velocity electromagnetic waves in photonic crystal waveguides (PCWs). We show that adiabatically matching the low group velocity waves to high group velocity waves of the PCW and extending the PCW structure into the perfectly matched layer (PML) region results in a 15 dB reduction of spurious reflections from the PML. We also discuss the applicability of this method to structures other than PCWs.
authors: School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, USA. murtaza.askari@gatech.edu
authors: Murtaza
authors: M
authors: Askari
authors: Babak
authors: B
authors: Momeni
authors: Charles M
authors: CM
authors: Reinke
authors: Ali
authors: A
authors: Adibi
mesh_terms: D000042:Absorption; D000465:Algorithms; D003198:Computer Simulation; D003460:Crystallization; D004867:Equipment Design; D008962:Models, Theoretical; D055095:Optics and Photonics / Q000295:instrumentation; D017785:Photons; D011827:Radiation; D012031:Refractometry; D017655:Silicon Compounds / Q000737:chemistry
chemical_list: D017655:Silicon Compounds