Title :
Generation of Bessel Beams at mm- and submm-Wave Bands Using Binary Optical Elements
Author :
Yu, Y.Z. ; Dou, W.B.
Abstract :
We apply binary optical elements (BOE´s), designed by using a genetic algorithm (GA) for global optimization and a two-dimension finite-difference time-domain (2-D FDTD) method for rigorous electromagnetic computation, to generate Bessel beams at mm and submm-wave bands. Numerical results demonstrate that the designed BOE´s can not only successfully produce arbitrary order Bessel beams, but also have higher diffraction efficiencies when compared with amplitude holograms.
Keywords :
finite difference time-domain analysis; genetic algorithms; optical elements; submillimetre waves; 2D finite-difference time-domain method; Bessel beams; amplitude holograms; binary optical elements; electromagnetic computation; genetic algorithm; global optimization; Algorithm design and analysis; Beams; Design optimization; Electromagnetic diffraction; Finite difference methods; Genetic algorithms; Optical computing; Optical design; Time domain analysis; Two dimensional displays; Bessel beam; binary optical elements (BOE´s); finite-difference time-domain(FDTD); genetic algorithm(GA); millimeter and submillimeter-wave;
Conference_Titel :
Millimeter Waves, 2008. GSMM 2008. Global Symposium on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-1885-5
Electronic_ISBN :
978-1-4244-1886-2
DOI :
10.1109/GSMM.2008.4534573
