利用 532 nm皮秒脉冲激光在金纳米光栅表面诱导表面等离子体激发 CdSe量子点荧光，并测量了 CdSe量子点荧光增强效应。分别采用 AFM刻蚀方法和自组装方法在硅基金膜表面制备了纳米光栅/CdSe量子点的多层薄膜结构。通过调节皮秒脉冲激光的功率，在显微拉曼平台上测量了 CdSe量子点的荧光光谱。结果表明，金纳米光栅 /CdSe量子点结构能够实现量子点远场荧光大幅增强，其最大荧光强度达 7.80倍，并在达到最大强度点开始迅速饱和。该研究结果可广泛应用于光电器件、生物医学检测研究等领域。

The fluorescence enhancement effect of CdSe quantum dots (QDs) was measured by using a picosecond pulsed laser with a 532 nm excitation wavelength to induce surface plasmon (SP) on a gold nanograting surface. A layered thin film was prepared on the gold film surface of silicon fund by atomic force microscope (AFM) etching and self-assembly method, respectively. The fluorescence spectrum of CdSe QDs was measured by adjusting the power of picosecond pulsed laser on a micro-Raman measuring platform. The results showed that the structure of the gold nanograting and CdSe QDs could greatly enhance the far-field fluorescence of CdSe QDs, the maximum fluores-cence intensity was up to 7.80 times, and it had been saturated rapidly at the point of reaching the maximum inten-sity. The results of this study could be widely used in fields of the optoelectronic devices, biomedical detection.