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Flashlamp performance enhancement using optical coatings

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Abstract

Flashlamp-pumped laser systems are relatively inefficient converters of electrical power to useful radiation. Recycling wasted energy by reflecting it back into the plasma can lead to increases in energy output and other beneficial effects. Conservation of energy considerations suggests that reflected radiation repartitions into other wavelengths. Thus an IR reflector placed around a flashtube reflects IR energy which reemerges at shorter wavelength. Similarly a UV reflector promotes the generation of longer-wavelength radiation. A combination of appropriately designed reflectors, therefore, can be used to tailor the spectral output of the lamp to a range of desired characteristics. In addition, to increase output power, undesirable side effects such as ozone generation and solarization of laser components are reduced or eliminated without using absorbing filters.

© 1986 Optical Society of America

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