Department of Physics & Astronomy

Spring 2009 Colloquia


Jung-Tsung Shen

Jung-Tsung Shen

Ginzton Laboratory
Stanford University
Novel properties of light and metamaterials

Strongly correlated photon transport in nano-photonic waveguides and ultra-high index metamaterials

February 9, 2009, 4PM, Thornton 411

In this talk, I will describe our recent research on exploring the novel properties of light and artificial structures. Many practical considerations such as the demand of secure communication and other novel nano-photonic devices, require the use of entangled photons. Photons, however, do not directly interact with each other. In the first part of the talk, I will describe how to generate and manipulate strong photon-photon interactions in nano-photonic waveguides. The interaction between photons makes their transport strongly correlated -- whether one photon is transmitted depends upon the existence of another photon. The photons also exhibit bunching and anti-bunching behaviors due to the correlations.

In the second part of my talk, I will describe how to design novel metamaterials by exploiting the electromagnetic states at subwavelength scales. In particular, I will discuss the mechanisms and the properties of broadband, ultra-high refractive index metamaterials. Such artificial structures will be useful in, for example, broadband slow-light, sensitive interferometer, and subwavelength imaging and lithography.

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