Scanning Near-Field Optical Microscopy

1. Nanoscale nonlinear optics

The technology for sub-wavelength resolution imaging, near-field scanning optical microscopy (SNOM), can be used very effectively to study linear process in fibres and waveguides. The availability of femtosecond pulses means that the nonlinear properties of waveguides can now be studied at nanometer resolution for the first time. The project is to study the propagation and nonlinear optical properties of femtosecond pulses in waveguides using SNOM. Topics include supercontinuum generation, ultrafast optical switching, and novel nanostructured waveguides.

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