The gold nanocrescent (NC) particles possess a strong plasmon resonance which gives them a strong scattering cross section. They can thus be easily tracked using dark-field microscopy. In this study, we improved the optical configuration setup of dark-field video microscope to simultaneously measure the translational and rotational local temperatures within a glycerol medium. The translational and rotational local temperatures have been measured on the same single gold nanocrescent particle when it was excited by green and red laser. The rotational local temperature was measured by the technique of rotational scattering correlation spectroscopy (RSCS) and the translational local temperature was measured by tracking a single nanoparticle technique through the determination of translational diffusion coefficient under Brownian motion. The result showed that the translational local temperature was significant lower than the rotational local temperature for the same single gold nanocrescent. Remarkablely, we can affirm that the heterogeneity of the optical environment leads to the difference between these two temperatures. The obtained results have a great potential to probe the local nanorheology of a material.

金纳米新月形（NC）粒子具有强烈的等离子体共振，这使它们具有很强的散射截面。因此，可以使用暗视野显微镜轻松跟踪它们。在这项研究中，我们改进了暗视场显微镜的光学配置，以同时测量甘油介质中的平移和旋转局部温度。当用绿色和红色激光激发同一金纳米新月形粒子时，已测量了其平移和旋转局部温度。通过旋转散射相关光谱法（RSCS）测量旋转局部温度，通过确定布朗运动下的平移扩散系数，通过跟踪单个纳米粒子技术来测量平移局部温度。结果表明，对于相同的单个金纳米月牙，平移的局部温度明显低于旋转的局部温度。值得注意的是，我们可以确认光学环境的异质性导致了这两个温度之间的差异。获得的结果具有探索材料的局部纳米流变学的巨大潜力。