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Abstract:
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This thesis discusses the design and construction of a Near -field Scanning Optical
Microscope (NSOM ) . Basic principles of operation , the characteristics of the hardware
components , and the control software are discussed . A unique method of controlling the
position of the probe is developed , and scans of a diffraction grating are presented . We
show the influence that the surface topology and reflectivity and the interference of direct
and reflected light have on the images . A second design of the instrument , for use in a
vacuum chamber and with a flexure stage for lateral motion , is accomplished . |