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首次利用提拉法生长了优质铬离子敏化激光自倍频晶体Ｃｒ∶Ｎｄ∶ＧｄＣａ４Ｏ（ＢＯ３）３（Ｃｒ∶Ｎｄ∶ＧｄＣＯＢ） ，发现当铬离子和钕离子双掺时，由于协同效应使铬离子容易进入ＧｄＣＯＢ晶体中，测量了Ｃｒ∶Ｎｄ∶ＧｄＣＯＢ 和Ｎｄ∶ＧｄＣＯＢ晶体的室温透过谱和荧光谱。Ｃｒ∶Ｎｄ∶ＧｄＣＯＢ晶体在蓝紫外区比Ｎｄ∶ＧｄＣＯＢ晶体具有更强的吸收，适合于利用闪光灯泵浦。利用闪光灯泵浦分别对长度为７ｍｍ ，沿最佳倍频方向（θ＝ ６６．８°，＝１３２．６°） 切割的Ｃｒ∶Ｎｄ∶ＧｄＣＯＢ和Ｎｄ∶ＧｄＣＯＢ 晶体进行自倍频实验。Ｃｒ∶Ｎｄ∶ＧｄＣＯＢ的激发阈值为０．９Ｊ，而Ｎｄ∶ＧｄＣＯＢ的激发阈值为１ ．０Ｊ。在１０Ｊ的输入能量时，Ｃｒ∶Ｎｄ∶ＧｄＣＯＢ输出绿光能量为２ ．４６ｍＪ，而Ｎｄ∶ＧｄＣＯＢ输出绿光能量为１ ．９６ｍＪ，说明在该晶体中，铬离子对钕离子有很好的敏化作用。
For the first time, the high-quality chromium ion-sensitized laser self-doubling frequency crystal Cr: Nd: GdCa4O (BO3) 3 (Cr: Nd: GdCOB) was grown for the first time using the Czochralski method. It was found that when chrome ions and neodymium ions were double- Ions easily enter GdCOB crystals, and the room temperature transmission spectra and fluorescence spectra of Cr: Nd: GdCOB and Nd: GdCOB crystals were measured. Cr: Nd: GdCOB crystals have a stronger absorption in the blue-UV region than Nd: GdCOB crystals and are suitable for pumping with flash lamps. Self-frequency doubling experiments were performed on strobed Cr: Nd: GdCOB and Nd: GdCOB crystals of length 7 mm, cut in the optimal frequency doubling direction (θ = 66.8 °, = 132.6 °) using a flash pump. The excitation threshold for Cr: Nd: GdCOB is 0.9 J, while the excitation threshold for Nd: GdCOB is 1. The excitation threshold for Cr: Nd: 0J. At 10 J input energy, Cr: Nd: GdCOB outputs 2 green energies. 46mJ, and Nd: GdCOB output green energy is 1. 96mJ, indicating that in this crystal, chromium ions have a good sensitization of neodymium ions.