Plasmonic nano-imaging with metallic nanolens

• Autorzy: Ono A. , Verma P. , Kawata S.
• Konferencja: 8th International Conference on Global Research and Education – Inter-Academia 2009
• Języki publikacji: EN

Abstrakty

EN

We proposed a nano-imaging system at optical frequency region with the array of metallic nanorods. We simulated the field distribution of imaging process using the finitedifference time-domain algorithm. It is found that the spatial resolution is 40 nm, which is much beyond the diffraction-limit and is limited by the array pitch. The typical configuration is a hexagonal arrangement with 40 nm periodicity of silver rods of 50 nm height and 20 nm diameter. The image formation highly depends on the coherence and the polarization of the dipole sources, the array pitch, and the source-array distance. The principle of our near-field imaging is based on the longitudinal resonance of the localized surface plasmon along a metallic nanorod. The spectral responses of the device are also investigated.

Słowa kluczowe

EN

plasmonics; near-field optics

• Wydawca: Łukasiewicz Industrial Research Institute for Automation and Measurements PIAP
• Czasopismo: Journal of Automation Mobile Robotics and Intelligent Systems
• Rocznik: 2009
• Tom: Vol. 3, No. 4
• Strony: 102--104
• Opis fizyczny: Bibliogr. 6 poz., rys.

Twórcy

autor

Ono A.

autor

Verma P.

autor

Kawata S.

• Division of Global Research Leaders, Shizuoka University, 3-5-1 Johoku, Naka-ku, Hamamatsu 432-8561, Japan.,

Bibliografia

• [1] Ono A., Kato J., Kawata S., “Subwavelength Optical Imaging through a Metallic Nanorod Array”,Phys. Rev. Lett. , vol. 95, 2005, no. 267407.
• [2] Shalaev V.M., editor, Optical Properties of Nanostructured Random Media, Springer, Berlin, 2002.
• [3] Kawata S., editor, Near-field and Surface Plasmon Polaritons, Springer, Berlin, 2001.
• [4] Ichimura T., Hayazawa N., Hashimoto M., Inouye Y., Kawata S., “Tip-enhanced coherent anti-Stokes Raman scattering for vibrational nano-imaging”, Phys. Rev. Lett., vol. 92, 2004, no. 220801.
• [5] Kawata S., Ono A., Verma P., “Subwavelength colour imaging with a metallic nanolens”, Nature Photonics, vol. 2, no. 7, 2008, pp. 438-442.
• [6] Johnson P.B., Christy R.W., "Optical Constants of the Noble Metals", Phys. Rev. B, vol. 6, no. 4370, 1972.