Title :
Generation of multiple sub-diffraction-limit spots in 3D space with propagating light
Author :
Aino, Masahiko ; Ogura, Yusuke ; Tanida, Jun
Author_Institution :
Grad. Sch. of Inf. Sci. & Technol., Osaka Univ., Suita, Japan
Abstract :
This paper reports on diffractive fan-out elements generating multiple sub-diffraction-limit spots in three-dimensional (3D) space. To arrange the sub-diffraction-limit spots, we introduce particular constraints and transfer functions corresponding to the Fresnel diffraction into an iterative Fourier transform algorithm. Experimental results demonstrate that the size of spots generated in 3D space is reduced to 77% of the diffraction limit on average.
Keywords :
Fourier transform optics; Fresnel diffraction; diffractive optical elements; iterative methods; optical transfer function; 3D space; Fresnel diffraction; diffractive fan-out elements; iterative Fourier transform algorithm; multiple subdiffraction-limit spots generation; propagating light; transfer functions; Algorithm design and analysis; Diffraction; Focusing; Lenses; Optical diffraction; Phase modulation; Three-dimensional displays;
Conference_Titel :
Information Optics (WIO), 2015 14th Workshop on
Conference_Location :
Kyoto
DOI :
10.1109/WIO.2015.7206912
