Title :
Effect of hole shape in cathodoluminescence of subwavelength holes
Author :
Prangsma, J.C. ; de Waele, R. ; Kuipers, L.
Author_Institution :
Center for Nanophotonics, FOM Inst. for Atomic & Mol. Phys., Amsterdam
Abstract :
Single and multiple holes in optically thick gold layers are investigated with cathodoluminescence to obtain optical information beyond the diffraction limit. Excitation patterns and spectral shapes are observed to shift when the hole shape is varied. It is shown that the specific relative orientation of dimers and trimers of holes leads to shifts in the spectrum and changes of the excitation patterns.
Keywords :
cathodoluminescence; gold; light diffraction; Au; cathodoluminescence; diffraction limit; dimers; excitation patterns; hole shape effect; optical information; optically thick gold layers; spectral shapes; subwavelength holes; trimers; Atom optics; Charge coupled devices; Electron beams; Gold; Nanophotonics; Optical sensors; Plasmons; Scanning electron microscopy; Shape; Spatial resolution; (240.6680) Surface plasmons; (250.1500) Cathodoluminescence; (350.4238) Nanophotonics;
Conference_Titel :
Lasers and Electro-Optics, 2008 and 2008 Conference on Quantum Electronics and Laser Science. CLEO/QELS 2008. Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-55752-859-9
