한국결정성장학회:학술대회논문집 (Proceedings of the Korea Association of Crystal Growth Conference)

한국결정성장학회 (The Korea Association of Crystal Growth)
권호 표지

$CaF_2$ crystal growth for using optical components of laser

  • Seo, Soo-Hyung (Department of Ceramic Engineering, Hanyang University) ;
  • Kyoung Joo (Ceramic Process Research Center (CPRC), Hanyang University) ;
  • Auh, Keun-Ho (Department of Ceramic Engineering, Hanyang University)
  • 발행 : 1998.09.01
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초록

Large vacuum Bridgman-Stockbarger (BS) equipments was composed for growing large diameter CaF2 crystals. The CaF2 crystal of 4.5-inch was grown under the conditions of freezing temperature gradient of 12$^{\circ}C$/cm and growing rate of 3mm/hr. Also the 6-inch crystal was grown by using thermal stabilization method under freezing temperature gradient of 14$^{\circ}C$/cm and growing rate of 2mm/hr. The dislocation density was characterized for evaluating the quality of crystals. And the optical properties such as transmittance, refractive index and fluorescence were analyzed in order to investigate on the applications of optical components.

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