| Popis: |
Optical microscope has played an important role in the many fields, such as biology and material study. Because of the wave nature of light, the resolution of optical microscope is limited by diffraction limit, about λ/2 in practice, and that prohibits one from observing more detailed structure of the sample. In the last decade,, some techniques have been developed to overcome the limit, including stimulated emission depletion microscopy (STED), near-field scanning optical microscopy (NSOM), superlens, etc. |
