[Stanford Nano Society Seminar] Friday 04/10, 1pm, CISX101, Manipulating light at single wavelength or deep sub-wavelength scales open new device and material possibilities

Stanford Nanoscience & Nanotechnology Society Seminar:

Manipulating light at single wavelength or deep sub-wavelength scales open new device and material possibilities

Dr. Jung-Tsung Shen (Prof. Shanhui Fan group)
http://www.stanford.edu/~jushen/

Location: CISX 101
Time: 1:00-2:00pm
Date: Apr. 10 (Friday)

Abstract:

The capability of manipulating light using deep sub-wavelength structures opens up new device and material possibilities. In this talk, I will describe our recent research in this aspect and give two examples enabled by such capability. The first example is the strongly correlated photon transport in nano-photonic waveguides. Photons normally do not directly interact with each other, yet many practical considerations, such as quantum communication and information processing, and other novel optoelectronics devices require the use of entangled photons. I will describe how to deterministically generate and manipulate strong photon-photon interactions via a two-level system. Such strong interactions have profound consequences on the photon transport properties. A deep understanding of the mechanism also provides a key to achieve low power optical switching at single-photon level. It also represents the most fundamental form of nonlinear optics. Moreover, the configuration is well-suited for on-chip all solid-state implementations.

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 properties of a special class of metamaterials -- broadband, ultra-high refractive index metamaterials. Such artificial structures will be useful in many applications such as subwavelength lithography and imaging, broadband slow-light, and sensitive interferometer.

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Pizzas would be served !
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All are welcome.

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Gaurav Thareja
Ph.D candidate, Nishi group
Electrical Engineering
Stanford University
420 Via Palou Mall, CISX 128
Stanford, CA 94305
Tel: 650-704-1029
Email: gthareja@stanford.edu