PubMed · 14381313
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A G ZUPKO, A CORAN. 1955. A note on a simple universal fluid drop counter.. https://doi.org/10.1002/jps.3030440623
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In this paper the chief IR characteristics of oxide was summarized. The relationship between the IR characteristics of oxide and the structures of oxide was discussed. The results show that the organic compound and inorganic compound have great infrared activity, and have intense and wide absorption peaks. This provides the strong basis on which we can distinguish the oxide from the compound.
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Recent spectroscopic results in the emerging area of transition-metal NIR-to-visible upconversion are related. The examples of Ti(2+)-, Re(4+)-, and Os(4+)-doped materials showing upconversion illustrate GSA/ESA, GSA/ETU, and photon avalanche multiphoton excitation mechanisms, respectively. Strategies for manipulation of such upconversion processes using the spectroscopic or magnetic properties of the host material are described. High-resolution low-temperature continuous-wave absorption and emission and time-resolved emission experiments combine to yield information about energy splittings, intensities, and excited-state dynamics, and assist in the design and development of luminescent materials showing novel multiphoton excitation properties.