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Nano-World Electromagnetic Resonance: Insights from Nonlinear Optics

Explore the electromagnetic resonance of nano-world through nonlinear optics. Learn about optical response of nanostructures, artificial materials formed by nano-objects, and the induced charge distribution on nanorods. Discover how intra- and inter-particle coupling effects affect modeling and the design of negative refractive metamaterials.

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Nano-World Electromagnetic Resonance: Insights from Nonlinear Optics

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  1. Electromagnetic multi-polar resonance of nano-world Nonlinear Optics & Biophotonics Lab.Institute of Electro-Optical EngineeringNational Chiao Tung University Speaker: Chien Yu Lin Adviser: Prof. Jung Y. Huang 2010/06/08

  2. Outline • Introduction: Optical response of nanostructure • Optical properties of artificial materials formed by nano-objects • Coarse-grained picture of artificial materials • Conclusions

  3. INTRODUCTION

  4. Molecular polarizability • Distortion of molecular electronic system with the external optical field(a) Insight into molecular properties(b) Interactions within a matter E K

  5. Information from light scattering Discrete dipole approximation

  6. OPTICAL PROPERTIES OF ARTIFICIAL MATERIALS FORMED BY NANO-OBJECTS

  7. Cylindrical superparticles with linearlypolarized emission

  8. electric quadrupole resonance in optical metamaterials

  9. COARSE-GRAINED PICTURE OF ARTIFICIAL MATERIALS

  10. The induced charge distribution on nanorods

  11. The azimuthal patterns of the light scattering p-polarized scattering light with s-polarized incident p-polarized scattering light with p-polarized incident

  12. The intra- and inter-rod electric quadrupolar couplings:the effectivemagnetic permeability

  13. planar negative-index lens is determined by how many evanescent waves from the object can be recovered, rather than by the diffraction limit The resonant nature of the amplification places sever demands on materials: they must be very low loss

  14. Subwavelength optical imaging

  15. Spatial transformation

  16. Controlling Electromagnetic Fields

  17. Conclusions • Intra- and inter-particle coupling effects are important in modeling the optical response of an array of nano-objects. • Mapping non-locally coupled nano-objects into an array of coarse-grained induced charges is the extra degrees of freedom for the design of a negative refractive metamaterial.

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