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Phosphate Vibrations Probe Local Electric Fields and Hydration in Biomolecules
Phosphates Water Phospholipids Spectrophotometry, Infrared Electricity Models, Molecular
2016/5/25
The role of electric fields in important biological processes such as binding and catalysis has been studied almost exclusively by computational methods. Experimental measurements of the local electri...
The Use of Large Magnetic Fields to Probe Photoinduced Electron Transfer Reactions:An Example from Photosynthetic Reaction Centers
Large Magnetic Fields Photoinduced Electron Transfer Reactions Photosynthetic Reaction Centers
2016/5/20
We will outline an experimental approach that uses large magnetic fields and simple optical methods, combined with a method of data analysis, that is ideally suited for studying the mechanism of rapid...
Transient photoluminescence enhancement as a probe of the structure of impurity-trapped excitons in CaF$_2$:Yb$^{2+}$
photoluminescence enhancement impurity-trapped excitons Materials Science
2011/8/17
Abstract: We demonstrate a direct measurement of the energy levels of impurity-trapped excitons in CaF$_2$:Yb$^{2+}$. The radically different radiative decay rates of the lowest exciton state and high...