Department of Physics, Engineering Physics & Astronomy

Queen's University
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Department of Physics, Engineering Physics & Astronomy
Department of Physics, Engineering Physics & Astronomy

Departmental Colloquium - Ultrafast Nanophotonics and Solid-State Attosecond Metrology

Shawn Sederberg,
Max Planck Institute of Quantum Optics

Tuesday June 20th, 2017
11:00 a.m. Stirling 501

Abstract:

Natural phenomena can originate from dynamics that are too rapid to be measured by even the fastest instrumentation. Ultrafast optical techniques aim to resolve terahertz and petahertz dynamics occurring in atomic, molecular, and solid-state systems, for the purpose of gaining new basic insight and applying it to medicine and information processing.

The first part of this presentation will focus on ultrafast nonlinear interactions in nano-optical structures. Spectral broadening, harmonic upconversion, and field-driven electron sweeping dynamics are each examined in sub-wavelength nanophotonic and nanoplasmonic waveguides.

The second part will focus on the development of a radically new approach to attosecond physics, based on solid-state, electric-field-resolved detection of waveforms at frequencies exceeding 1PHz (1PHz = 1015Hz). Measurements elucidating the basic physics behind this technique are followed by their application to time-domain metrology from the ultraviolet to the mid-infrared, optical switching of a single cycle of light, and electric-field-resolved detection of petahertz electron dynamics in solids.