Oriented Reduced-Pressure Melts Growth of the Vacuum Ultraviolet Double Frequency Crystal KBe₂BO₃F₂

Abstract:

A bulk vacuum ultraviolet double frequency crystal KBe₂BO₃F₂ (KBBF) crystal has been grown successfully by using a method of oriented reduced-pressure melts growth, and the optical properties of the grown crystal, such as optical transparency and the second harmonic efficiency, were also measured. The results show that the high-frequency absorption edge is observed at 150nm and the optical transparency was up to 75% in the spectral range between 250nm and 400nm. The second harmonic efficiency was measured with an outer cavity frequency-doubling method and its maximal value was about 68.5%. The experimental researches indicate that the oriented reduced-pressure melts growth is a promising growth method for bulk KBBF crystal and it is possible for applying as a frequency-doubling device for the vacuum ultraviolet region.

• Periodical: Applied Mechanics and Materials (Volumes 313-314)
• Pages: 86-88
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.313-314.86
• Online since: March 2013
• Authors: Wen Li Wang
• Keywords: Crystal Growth, Frequency-Doubling, Nonlinear Optical Crystal

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