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- W166329017 abstract "Single crystal fluoride optical materials were grown for potential application to laser fusion. Fluoride materials are of interest for this application, in general, because their low non-linear indices of refraction permit their use in optical components which can sustain very high peak powers without causing beam distortion. Emphasis was placed on Nd:YLF because its emission wave-lengths match the gain curve of promising amplifier materials. In addition to material growth, new feed preparation techniques were investigated and developed and certain material properties measured. The laser material, Nd:YLF, (Nd/sup 3 +/ in LiYF/sub 4/) was grown and fabricated into laser rods. This material has laser emission at 1.047 ..mu..m and 1.053 ..mu..m, depending on the polarization selected. The former wavelength matches the peak emission wavelength of developmental Nd fluoroberyllate glasses, the latter matches Nd phosphate and fluorophosphate glasses that have low values of n/sub 2/. The non-linear index of pure LiYF/sub 4/ was measured by Milam and Weber as 0.59 x 10/sup -13/ esu. The concentration of Nd/sup 3 +/ was varied from 1% to 4%. At higher concentrations and larger diameters a radial strain was found, sufficient to cause spiral cracking. This strain was apparently generated by a radial gradient ofmore » Nd/sup 3 +/ ions. The distribution coefficient observed in one sample was 0.38. The stimulation emission coefficients were determined. Boules of KY/sub 3/F/sub 10/ and KTb/sub 3/F/sub 10/ were grown, with the latter suitable as a Faraday rotator material with projected low n/sub 2/ and larger Verdet constant. Experiments were performed on the systemKF-CeF/sub 3/ as a potential Faraday rotator material, and a cubic phase observed. The Ce/sup 3 +/ ion has slightly lower rotary power/ion, but significantly lower cost.« less" @default.
- W166329017 created "2016-06-24" @default.
- W166329017 creator A5003811930 @default.
- W166329017 date "1977-02-01" @default.
- W166329017 modified "2023-09-24" @default.
- W166329017 title "Fluoride materials for high peak power lasers, 17 May 1976--31 January 1977. [Nd in LiYF/sub 4/]" @default.
- W166329017 doi "https://doi.org/10.2172/7213241" @default.
- W166329017 hasPublicationYear "1977" @default.
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