Trojánek F, Zídek K, Dzurnák B, Kozák M, Malý P
Faculty of Mathematics and Physics, Charles University in Prague, Prague 2, Czech Republic.
Opt Express. 2010 Jan 18;18(2):1349-57. doi: 10.1364/OE.18.001349.
We report on investigation of nonlinear optical phenomena in nanocrystalline diamond prepared by microwave plasma enhanced chemical vapour deposition. We observed the upconverted photoluminescence, the second and the third harmonic generation and Z-scan signal. The value of the third order nonlinear susceptibility was estimated. Our results show that nonlinear optical properties of nanocrystalline diamond have many features of the bulk diamond affected to some extent by the presence of grain boundaries.
我们报道了对通过微波等离子体增强化学气相沉积制备的纳米晶金刚石中的非线性光学现象的研究。我们观察到了上转换光致发光、二次谐波和三次谐波产生以及Z扫描信号。估算了三阶非线性极化率的值。我们的结果表明，纳米晶金刚石的非线性光学性质具有许多体相金刚石的特征，并且在一定程度上受到晶界存在的影响。
