Violet light generation by frequency doubling of GaAlAs diode laser using a metallo-organic complex crystal ZnCd(SCN)₄

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• 作者：Zhang ; Guanghui ; Xu ; Dong ; Lü ; Mengkai ; Yuan ; Duorong ; Wang ; Xingqiang ; Meng ; Fanqing ; Guo ; Shiyi ; et. al.
• 关键词：Blue&ndash ; violet light ; Second harmonic generation ; ZCTC crystal
• 刊名：Optics and Laser Technology
• 出版年：2001
• 出版时间：March, 2001
• 年：2001
• 卷：33
• 期：2
• 页码：121-124
• 全文大小：142 K

文摘

Violet 404-nm radiation is generated by type-I single-pass frequency doubling of the output of an GaAlAs diode laser in critically phase-matched ZnCd(SCN)₄ (ZCTC) crystal, a metallo-organic complex crystal. In this paper, its refractive index and second-harmonic generation phase-matching angles are reported. Using a 3-mm-long ZCTC crystal, a diode laser power of 473mW generated 390μW of second-harmonic radiation. More recently, 380-nm, 20μW ultraviolet (UV) radiation is also realized by frequency doubling of the 100mW output of a continuous-wave Ti:sapphire laser at 760nm. ZCTC is a promising UV nonlinear optical candidate material for frequency doubling of diode lasers.