A laser-based in-situ spectrometer using near infrared diode laser at 767 and 770 nm to detect potassium atoms in high-temperature environments is described. The device was used to investigate the thermal dissociation of KCl and to monitor K behind the flue gas filter (300mm diameter, 1000°C) of a 250kW-coal combustor, without the necessity of error prone gas sampling. With a response time of 2...

The Cupric oxide (CuO) nanostructures and Fe doped CuO nanomaterials are synthesized by microwave irradiation method. effect of doping on the crystal structure, band gap optical properties samples were characterized using x-ray diffraction, ultraviolet-visible spectrometer, photoluminescence spectrometer Fourier transform infrared spectrometer. X-ray diffraction study confirms size particle in ...

Thermal infrared sounding of sulphur dioxide (SO2) from space has gained appreciation as a valuable complement to ultraviolet sounding. There are several strong absorption bands of SO2 in the infrared, and atmospheric sounders, such as AIRS (Atmospheric Infrared Sounder), TES (Tropospheric Emission Spectrometer) and IASI (Infrared Atmospheric Sounding Interferometer) have the ability to globall...