Editing Diamond anvil cell (section)

====Double-sided heating====
The use of two lasers to heat the sample reduces the axial temperature gradient, which allows for thicker samples to be heated more evenly. In order for a double-sided heating system to be successful it is essential that the two lasers are aligned so that they are both focused on the sample position. For in situ heating in diffraction experiments, the lasers need to be focused to the same point in space where the X-ray beam is focused.