Hydroxyl radicals first detected at 2.8 μm wave length with optical-feedback cavity-enhanced absorption spectroscopy

Based on optical-feedback cavity-enhanced absorption spectroscopy (OF-CEAS) technology, a research team led by Prof. Zhang Weijun from the Hefei Institutes of Physical Science (HFIPS) of the Chinese Academy of Sciences (CAS) has recently detected hydroxyl radical (OH) at 2.8 μm wavelength with a distributed feedback diode laser.


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Source: Phys.org