基于人造金刚石晶体的拉曼激光器研究进展

受激拉曼散射是一种重要的非线性光学频率变换技术,在拓展激光波段方面有十分广泛的应用前景。因此,寻找具有优良光学性质的拉曼介质,提高拉曼激光器性能,具有重要的研究价值。相比于传统的固体拉曼晶体,人造金刚石晶体具有拉曼增益系数大、拉曼频移大、导热率高和透过性好等显著优点,基于人造金刚石晶体的拉曼激光器能够获得更高的输出功率和转换效率。本文简要介绍了化学气相沉积法（CVD）制备的金刚石晶体的光学性质和热学特性,总结了基于人造金刚石晶体的拉曼激光器在紫外波段、可见光波段及红外波段的研究现状,并对其发展进行了展望。

Abstract

Stimulated Raman scattering(SRS) is a kind of efficient nonlinear optical frequency conversion technology to extend laser wavelength range, and it has extensive prospects for various applications. Thus, it is important to develop new Raman medium with excellent optical properties and improve the performance of Raman laser. Compared with conventional Raman materials, diamond grown by chemical vapor deposition (CVD) has high Raman gain coefficient, large Raman frequency shift, outstanding thermal conductivity and broad optical transmission range. These properties are beneficial to raise average output power and conversion efficiency of Raman laser. In this paper, the optical and thermal properties of the CVD diamond were introduced briefly, and researches on Raman lasers based on synthetic crystal diamond were summarized in ultraviolet, visible and infrared range, respectively. Finally, the development of diamond Raman lasers was forecasted.

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陈志琼, 付喜宏, 张俊, 彭航宇. 基于人造金刚石晶体的拉曼激光器研究进展[J]. 发光学报, 2016, 37(5): 583. CHEN Zhi-qiong, FU Xi-hong, ZHANG Jun, PENG Hang-yu. Development of Raman Laser Based on Synthetic Diamond Crystal[J]. Chinese Journal of Luminescence, 2016, 37(5): 583.

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