Nanomovement of azo polymers induced by metal tip enhanced near-field irradiation

Journal Article · Mon Aug 27 00:00:00 EDT 2007 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.2777183· OSTI ID:21016111

Ishitobi, Hidekazu; Tanabe, Mamoru; Sekkat, Zouheir; Kawata, Satoshi ^[1]

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1. Nanophotonics Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan)

Nanomovement of azo polymers induced by metal tip enhanced near-field illumination was studied. A protrusion with 47 nm full width at half maximum was induced with a resolution beyond the diffraction limit. At the top of the protrusion, an anisotropic movement occurs in a direction nearly parallel to the polarization of the incident light, and suggests the existence at the tip end of not only a longitudinal but also a lateral component of the electric field of light. The anisotropic photofluidity and the optical gradient force played important roles in the process of the light induced polymer movement.

• OSTI ID: 21016111
• Journal Information: Applied Physics Letters, Vol. 91, Issue 9; Other Information: DOI: 10.1063/1.2777183; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANISOTROPY
DIFFRACTION
ELECTRIC FIELDS
IRRADIATION
METALS
POLARIZATION
POLYMERS
VISIBLE RADIATION