During the last years, however, pioneering work towards bringing diode lasers into the field of spectrochemistry has been done, primarily and extensively by Niemax et al. Diode lasers have several advantages over other tunable laser sources.
Significant drawbacks are lack of lasers that can operate directly at visible or UV wavelengths.
Several works involving diode lasers have been published in the literature lately. Diode lasers have been used for detection of atoms as well as molecules for spectrochemical purposes. Various types of modulation techniques have also been used for direct detection of molecules. Rb concentrations specified. For a description of most recent activities within this field, please click here .