Title :
Diffractive waveguide lenses with optimized high-efficiency structures
Author :
Huttunen, J. ; Turunen, J. ; Saarinen, J.
Author_Institution :
Helsinki Univ. of Tech., Finland
Abstract :
The effective-index modulation profiles of waveguide diffraction gratings with maximized first-order efficiency are applied to construct gradient-thickness diffractive waveguide lenses with improved overall efficiency. A high-numerical-aperture lens contains regions with significantly different structures. Such lenses are analyzed with the thin grating decomposition method
Keywords :
gradient index optics; holographic gratings; lenses; optical design techniques; optical waveguides; optimisation; HOE; effective-index modulation profiles; gradient-thickness diffractive waveguide lenses; high-numerical-aperture lens; optimized high-efficiency structures; thin grating decomposition method; waveguide diffraction gratings;
Conference_Titel :
Holographic Systems, Components and Applications, 1993., Fourth International Conference on
Conference_Location :
Neuchatel
Print_ISBN :
0-85296-578-8
