More information: Shuang Hao et al, Single 5-nm quantum dot detection via microtoroid optical resonator photothermal ...

Figure 1. Overview of FLOWER based photothermal microscopy system. A schematic illustration of the photothermal microscopy setup. The pump light travels through free space, guided by a galvo ...

As reported in Advanced Photonics, a newly developed technique, structured illumination midinfrared photothermal microscopy (SIMIP), now addresses this limitation with two times better resolution ...

Today's super-resolution microscopes have made it possible to observe the nanoscale world with unprecedented detail. However, they require fluorescent ...