Microscopy

The Nanoworld


These two lectures given by Professor David Cockayne are reproduced with kind permission from 2005 University of Sydney International Science Summer School


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Seeing in the Nanoworld    PDF logo

Nowadays every corner of the earth has been 'discovered', and we might think that there's nowhere left to explore. But there is - scientists are the explorers of the 21st century and the nanoworld is waiting to be explored. And just as Cook and Magellan depended upon specially designed ships for their adventures, so scientists rely upon advanced instrumentation and techniques to explore the nanoworld. And just as the early explorers saw strange and unfamiliar animals, plants and land formations, so the scientist-explorer is finding a wealth of unfamiliar objects - from bucky balls to nanotubes, and carbon nanotrees to nanomatches. In this article, we follow the development of the most important tool for exploring the nanoworld - the electron microscope - and we discuss the close relationship between diffraction and imaging.


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Building in the Nanoworld    PDF logo

NANOTECHNOLOGY is about building on the nanometre scale. And just as it is important to be able to see what you are building if you are a bricklayer (would you hire a blind bricklayer?), so it is important to be able to see if we want to build in the nanoworld. And one of the main reasons that the nanoworld is of such great research interest nowadays is because of the many new instruments we have for seeing in the nanoworld, such as atom probes and atomic force microscopes and the electron microscopes that are discussed in the accompanying article, "Seeing in the Nanoworld"


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