| CONTACT INFORMATION |
|---|
| Dr. Magnus Hummelgård |
| Dept. of Engineering physics |
| Mid Sweden University |
| SE-851 70 SUNDSVALL |
| Sweden |
| Phone: +46 60 14 8831 |
| magnus.hummelgard@miun.se |
| My in-situ TEM blogg |
| Publication list (by Google schoolar) |
| LinkedIn profile |
Most of my work is done by using a transmission elecron microscope. This type of microscope works in a similar way to a basic light optical microscope. You use a light-source that shines through the sample to be investigate and by pasing severals lenses a magnified transmision image is optained. In the electron microscope the glas-lenses is replaced by electromagnets and electrons is used as lightsource. A basic light microscope gives a magnification up to 1500x, but a electron microscope gives up to 1 milj. x.
Most of my experiments are done by using a special type of probe which allows direct manipulation of samples inside the electron-microscope. This in-situ method makes it possible to investigate mechanical and electrical properties at the nano-scale. Please look at the TEM-SPM probe QuickTime movie.
During a introduction-course in physics students are building their own scanning-tunneling-microscope.
The gray image is a STM image of a gold surface approximately 1-um in square. Picture is taken by "home-made" Scanning-Tunneling-Microscope used in a project for students where they build their own microscope.
The idea to make a STM project to be used in education, where students build their own microscope in a approach simillar to the CDIO-concept has evolved into the idé to found a company. This idea was nominated in the competition "Jag har en idé" and won the first price of 50.000kr. The webpage of this company is located at www.StudentSTM.com.
, this page is best viewed on a firefox webbrowser.