Improved microelectronics starts with optics. From communications and transport to consumer goods, microelectronic circuits are ubiquitous in all aspects of day-to-day life. This places an increasing demand on the semiconductor industry to manufacture integrated circuits with greater packing densities. The Otago sub-wavelength optics group investigates super-resolution optical imaging techniques that allow the generation of sub-wavelength feature sizes on a silicon wafer. These imaging techniques utilize laser interference lithography, plasmonics and related surface-wave phenomena and may one day meet the demands of the industry and the consumer. The group is also active in other simulation and experimental work into applications of these techniques towards bio-sensors and novel nanoelectronic devices.