In this article we will discuss about the design of atomic force microscope, explained with the help of a diagram. An atomic force microscope instead of using a lens is provided with a probe to examine the surface of a specimen with a sharp tip which may be several micrometers in and less than 10 nm in diameter at the [...]
In this article we will discuss about the design of transmission electron microscope, explained with the help of a diagram. In TEM a finely focused beam of electrons from an electron gun is passed through a specially prepared ultra thin section of the specimen. The beam is focused on a small area of the specimen by an electromagnetic condenser lens. [...]
The following points highlight the top eight types of microscopy. The types are: 1. Compound Microscope 2. Bright Field Microscopy 3. Dark Field Microscopy 4. Phase Contrast Microscopy 5. Fluorescent Microscopy 6. Electron Microscopy 7. Transmission Electron Microscopy 8. Scanning Electron Microscopy. Type # 1. Compound Microscope: A microscope is an instrument which makes enlarged image of minute objects near [...]