Sapphire is the most commonly used substrate for the GaN epitaxy.
目前，蓝宝石是GaN异质外延最常用的衬底材料。
参考来源 - 硅基GaN薄膜材料及紫外探测器原型器件研究Over the past ten years, high-power ultra-short pulse Ti: sapphire laser technologies based on chirped pulse amplification(CPA) have been rapidly developed and a number of large facilities have been built, increasing peak power density is always pursued aim for scientists.
高功率超短脉冲激光技术自二十世纪八十年代中期以来得到了飞速地发展,世界科技大国已相继建立了数台大型的高功率超短脉冲钛宝石激光装置,提高靶面峰值功率密度始终是追求的目标之一。
参考来源 - 高功率超短脉冲钛宝石激光光束控制研究At present, Most of GaN-based devices are fabricated on sapphire.
目前氮化镓基器件大多数制作在蓝宝石上。
参考来源 - GaN薄膜及纳米棒的制备和表征·2,447,543篇论文数据，部分数据来源于NoteExpress
N-VAR A sapphire is a precious stone which is blue in colour. 蓝宝石
...a sapphire engagement ring.
…一枚蓝宝石订婚戒指。
COLOR Something that is sapphire is bright blue in colour. 天蓝色的 [文学性]
...white snow and sapphire skies.
…白雪和蓝天。
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