Fluorescence imaging of single quantum light emitters (atoms, molecules, quantum dots, color centers in crystals) is an inherent experimental problem of modern photonics and its numerous applications. In these measurements, highly sensitive cameras are of the key significance. Recent progress in technologies of charge-coupling devices (CCD) and complementary metal-oxide semiconductor (CMOS) sensors opens up possibilities for detection of extreme low light signals up to a single photon counting. Here, we investigate the parameters of high-professional scientific- and amateur-grade cameras in the view of their use in the fluorescence nanoscopy with the detection of single molecules and, in general, quantum emitters of different nature. A series of photoluminescence imaging experiments have been conducted with single colloidal semiconductor core-shell nanocrystals CdSeS/ZnS (quantum dots, QD), which are usually considered as a basis of various sensors and actuators technologies. We find parameters of the experiment for the amateur-grade camera to obtain images of single QDs with signal-to-noise ratio compared to the scientific-grade camera at exposure times ranging from 1s to 1000s.

单个量子光发射器（原子、分子、量子点、晶体中的色心）的荧光成像是现代光子学及其众多应用的固有实验问题。在这些测量中，高灵敏度的相机至关重要。电荷耦合器件 (CCD) 和互补金属氧化物半导体 (CMOS) 传感器技术的最新进展为检测高达单光子计数的极低光信号开辟了可能性。在这里，我们研究了高专业科学级和业余级相机的参数，因为它们在荧光纳米显微镜中的应用，可检测单个分子，一般来说，不同性质的量子发射器。已经使用单个胶体半导体核壳纳米晶体 CdSeS/ZnS（量子点，QD）进行了一系列光致发光成像实验，这通常被认为是各种传感器和执行器技术的基础。我们找到了业余级相机的实验参数，以获得与科学级相机相比具有信噪比的单个 QD 图像，曝光时间从 1 秒到 1000 秒不等。