Photoemission electron microscopy
Photoemission electron microscopy (PEEM) is kind of like taking pictures of really, really small things using special cameras that are super sensitive to electrons.
Just like you can see things with your eyes when light bounces off of them, scientists can see tiny things with electrons by using a special device called a microscope. But PEEM is even cooler than that – it uses special electrons that are given a boost of energy from light to help take pictures!
The PEEM machine works kind of like a camera, only with electrons instead of light. A special light source, like a laser or a lamp, shines a beam of light onto the tiny thing you want to take a picture of. The tiny thing then absorbs some of the energy from the light beam and this in turn causes some of the electrons that are already in the tiny thing to jump out of it. These freed electrons will then fly out into the detector of the PEEM machine, which captures their image and creates a picture or image of the tiny thing!
Scientists can use PEEM to get incredibly detailed pictures of everything from atoms to tiny electronic circuits or even biological cells. It’s an amazing tool for research and has helped us learn more about how these tiny things work and how they can be manipulated or changed in order to build new technologies or cure diseases.
Just like you can see things with your eyes when light bounces off of them, scientists can see tiny things with electrons by using a special device called a microscope. But PEEM is even cooler than that – it uses special electrons that are given a boost of energy from light to help take pictures!
The PEEM machine works kind of like a camera, only with electrons instead of light. A special light source, like a laser or a lamp, shines a beam of light onto the tiny thing you want to take a picture of. The tiny thing then absorbs some of the energy from the light beam and this in turn causes some of the electrons that are already in the tiny thing to jump out of it. These freed electrons will then fly out into the detector of the PEEM machine, which captures their image and creates a picture or image of the tiny thing!
Scientists can use PEEM to get incredibly detailed pictures of everything from atoms to tiny electronic circuits or even biological cells. It’s an amazing tool for research and has helped us learn more about how these tiny things work and how they can be manipulated or changed in order to build new technologies or cure diseases.