| Carbon dioxide laser (3) |  |
The first generation which evolved a few decades ago was carbon dioxide lasers in which electricity runs through a gas to produce light.
Traditional quantitative phase imaging uses a helium neon laser, which produces visible light, but for the new system the researchers used a titanium sapphire laser that can be tuned to infrared and near-infrared wavelengths.
They first used a carbon dioxide laser in Thompson's lab to"write"the nanoporous materials onto a silicon wafer.
They first used a carbon dioxide laser in Thompson lab to ritethe nanoporous materials onto a silicon wafer.
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