Objective Light and the various ways it interacts with matter is our primary means of sensing the world around us and it's no surprise that many technologies today are based on light. However, light cannot be imaged or focused to sizes below half its wavelength - known as the diffraction limit. To see smaller objects we must use shorter wavelengths. However, metals can shatter the diffraction limit of light and are now very promising for new technologies that expand the capabilities of computers and the internet and deliver new sensor technologies for healthcare, defense and security.We often take for granted just how strongly light interacts with metals. Electricity, oscillating at 50 Hz has a wavelength of thousands of kilometers, yet an electrical socket is no larger than a few centimeters; well below the diffraction limit! By structuring metal surfaces on the nanometre scale, this same phenomenon allows us to beat the diffraction limit in the visible spectrum. This approach has recently re-invigorated the study of optics at the nano-scale. I believe the paradigm of nano-optics is the capability to shrink light down to the length scales of molecular, solid state and atomic electronic states for the first time. With nano-optics, light-matter interactions are not only greatly strengthened but weak effects once difficult to detect are dramatically enhanced. If we can strengthen such weak effects we can use them to realize new capabilities in optics.Last year, I reported in Nature that metal-based lasers can generate light below the diffraction limit and sustain it by amplification thus overcoming the inherent resistance of metals. While conventional lasers transmit light over large distances, it is the light inside these metal lasers that is unique. I want to use this light for new types of spectroscopy on the scale of individual molecules. Exploring optics at untouched length scales is an exciting opportunity with the potential for fundamentally new discoveries. Fields of science natural sciencescomputer and information sciencesinternetengineering and technologyelectrical engineering, electronic engineering, information engineeringelectronic engineeringsensorsnatural sciencesphysical sciencesopticslaser physicsnatural sciencesphysical sciencesopticsspectroscopy Programme(s) FP7-PEOPLE - Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013) Topic(s) FP7-PEOPLE-2009-RG - Marie Curie Action: "Reintegration Grants" Call for proposal FP7-PEOPLE-2010-RG See other projects for this call Funding Scheme MC-IRG - International Re-integration Grants (IRG) Coordinator IMPERIAL COLLEGE OF SCIENCE TECHNOLOGY AND MEDICINE Address South kensington campus exhibition road SW7 2AZ London United Kingdom See on map Region London Inner London — West Westminster Activity type Higher or Secondary Education Establishments Administrative Contact Brooke Alasya (Ms.) Links Contact the organisation Opens in new window Website Opens in new window EU contribution No data
