| The NIST researchers use free-form dual-comb spectroscopy to make videos like this 2D methane cloud. Dark areas mean there’s little or no methane present, while brighter colors show where there’s more methane. Because it can take pictures very quickly, this technology can show how the methane cloud creates swirling patterns and changes in real time, which wasn’t possible previously. This technology can be easily adjusted to look for different gases, not just methane. Credit: NIST / Nature Photonics. |
