In 1978, Kenneth Hill discovered that irradiating optical fibre with a laser permanently changes the refractive index of the fibre's core, an effect he called photosensitivity. Direct results of his work are the development of low cost/high performance devices such as wavelength filters, multiplexers and laser frequency stabilizers, important to telecommunications. Optical sensors for measuring temperature and strain are also beneficial outcomes for the construction industry. Dr. Hill is a 1995 Manning Awards recipient.
Sources: The Manning Awards
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