OPTICAL DEVICES WITH SPIRAL APERIODIC STRUCTURES FOR CIRCULARLY SYMMETRIC LIGHT SCATTERING,申请号US201313951571-传众专利搜索

OPTICAL DEVICES WITH SPIRAL APERIODIC STRUCTURES FOR CIRCULARLY SYMMETRIC LIGHT SCATTERING

申请公布号：US2014016181(A1)

申请号：US201313951571

申请日期：2013.07.26

申请公布日期：2014.01.16

申请人：

TRUSTEES OF BOSTON UNIVERSITY

发明人：DAL NEGRO LUCA

分类号：G02B5/00;G01J1/04

主分类号：G02B5/00

摘要：Optical devices including deterministic aperiodic patterning using spiral arrays exhibit circular symmetry in continuous Fourier space via polarization-insensitive planar diffraction. Far-field diffractive coupling in these structures leads to the formation of scattering resonances with circular symmetry and characteristic vortex behavior carrying orbital angular momentum. Plasmonic nanoparticle arrays with aperiodic spiral geometry can be used in fabrication of optical devices that benefit from polarization insensitive, enhanced light-matter coupling on planar surfaces, such as thin-film solar cells (enhanced light absorption and efficiency), photodetectors (enhanced light emission and efficiency), optical biosensors, and polarization devices.