An echelon-based single shot optical and terahertz Kerr effect spectrometer
Mead, Griffin
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https://hdl.handle.net/2142/104441
Description
Title
An echelon-based single shot optical and terahertz Kerr effect spectrometer
Author(s)
Mead, Griffin
Contributor(s)
Blake, Geoffrey
Issue Date
2019-06-17
Keyword(s)
Instrument/technique demonstration
Abstract
The design and performance characteristics of an echelon-based single shot visible/near-infrared/far-infrared spectrometer are presented. The spectrometer can measure both the nonlinear optical and terahertz Kerr effects in neat molecular liquids. Tens of picoseconds of molecular information can be recorded at a time, with adequate sensitivity to measure molecular responses in just a few milliseconds of experimental time. The signal-to-noise
performance was found to scale favorably with respect to the standard stage scan technique. These results demonstrate the viability of stage-free nonlinear Kerr effect measurements and provide a route for improvements to the speed of future multidimensional Kerr effect studies.
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