Journal
OPTICS EXPRESS
Volume 19, Issue 20, Pages 19093-19103Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.19.019093
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Funding
- MEXT Japan [B-23360161]
- JSPS
- Grants-in-Aid for Scientific Research [23360161] Funding Source: KAKEN
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We present experimental and theoretical results on plasmonic control of far-field interference for regular ripple formation on semiconductor and metal. Experimental observation of interference ripple pattern on Si substrate originating from the gold nanosphere irradiated by femtosecond laser is presented. Gold nanosphere is found to be an origin for ripple formation. Arbitrary intensity ripple patterns are theoretically controllable by depositing desired plasmonic and Mie scattering far-field pattern generators. The plasmonic far-field generation is demonstrated not only by metallic nanostructures but also by the controlled surface structures such as ridge and trench structures on various material substrates. (C) 2011 Optical Society of America
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