Near-field characterization of the optical properties in higher order plasmonic resonances

Chen-Han Huang; Hsing-Ying Lin; Chih-Han Chang; Yun-Chiang Lan; Hsiang-Chen Chui

doi:10.1117/12.841619

22 January 2010 Near-field characterization of the optical properties in higher order plasmonic resonances

Chen-Han Huang, Hsing-Ying Lin, Chih-Han Chang, Yun-Chiang Lan, Hsiang-Chen Chui

Author Affiliations +

Proceedings Volume 7608, Quantum Sensing and Nanophotonic Devices VII; 76081E (2010) https://doi.org/10.1117/12.841619
Event: SPIE OPTO, 2010, San Francisco, California, United States

Abstract

Dipole and quadrupole surface plasmon polariton (LSPP) resonances of gold nanoparticle array were directly investigated by a near-field scanning optical microscope (NSOM) in the fiber-collection mode. Separated gold nanoparticles on the quartz substrate were fabricated by nanosphere lithography. Results demonstrate that controlling the incident polarization and angle of oblique incidence enables to excite dipolar and quadrupolar LSPP at 633- and 488-nm excitations. This observation facilitates the understanding of LSPP and interactions with nanostructures in the near field that can be used as a guideline for fabricating nanostructures in controlling spatial distributions of LSPP for ultra sensitive bio-/chemo-detectors or plasmonic metamaterials.

Citation Download Citation

Chen-Han Huang, Hsing-Ying Lin, Chih-Han Chang, Yun-Chiang Lan, and Hsiang-Chen Chui "Near-field characterization of the optical properties in higher order plasmonic resonances", Proc. SPIE 7608, Quantum Sensing and Nanophotonic Devices VII, 76081E (22 January 2010); https://doi.org/10.1117/12.841619

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