可視化水平區融法生長非線性光學晶體之應用研究(2/2)
Date Issued
2005-10-31
Date
2005-10-31
Author(s)
DOI
932214E002021
Abstract
Lithium niobate (LiNbO3) is an important material in the optics industry for various
applications. Typically, the lithium niobate (CLN) crystal grown from its congruent melt, i.e.,
Li/Nb= 48.4/51.6, contains a large Li-deficiency, which introduces significant intrinsic defects. A
novel horizontal immersed- heater zone-leveling process was developed to grow near
stoichiometric lithium niobate (SLN) crystals. The heater was made of a platinum plate and
crucible was made of a pla tinum foil. Due to the localized heating, the power consumption was
also low. Through a careful control of the thermal environment, a convex growth interface was
obtained, and the grown crystal, having large grains, was reasonably good in terms of its
composition and optical properties. Due to the wetting of the solution and the crucible, secondary
grains were easily induced from the crucible wall, so that the growth of a single crystal was still
difficult. Nevertheless, crystal growth could be observed clearly through the top window, and this
provided useful information for process improvement.
Subjects
凹凸生長界面
沈入式加熱器
可視化水平區熔系統
溢流現象
Publisher
臺北市：國立臺灣大學化學工程學系暨研究所
Type
report
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