POLARIZATION DIVISION INTERFEROMETRY: TIME RESOLVED INFRARED DICHROISM
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Publisher:Ohio State University
Polarization division interferometry (PDI) offers unique advantages over conventional interferometric techniques. Since PDI measures dichroism directly at the interferometer frequencies, it becomes possible to investigate time resolved infrared dichroism for the first time. Using a mid-infrared PDI developed in our laboratory, the time resolved infrared dichroism has been measured in $\mu s$ time scale for the first time. The time resolved measurements of the function of a photoelastic modulator and on the behaviour of nematic liquid crystal in the presence of external electric field are presented as the first examples. These measurements establish the feasibility of time resolved infrared dichroism measurements and open boundless opportunities for studying the temporal behaviour of biomembranes in the presence of external stimulus.
Author Institution: Department of Chemistry, Vanderbilt University
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