AI Article Synopsis
- A new transient absorption apparatus has been developed that utilizes a tilted pump pulse to create a spatial encoding of a 45 ps time delay in a single shot.
- The device improves time delay range significantly by employing a spatial light modulator to even out the excitation field's intensity at the sample site.
- The technology has demonstrated a high signal-to-noise ratio of over 35 in just 8 seconds, facilitating the study of excited state dynamics in non-equilibrium systems.
Article Abstract
We report a single-shot transient absorption apparatus that successfully uses a tilted pump pulse to spatially encode a 45 ps pump-probe time delay. The time delay range is significantly improved over other reported instruments by using a spatial light modulator to flatten the intensity of the excitation field at the sample position. The full time delay range of the instrument is demonstrated by measuring a long-lived dye. A signal-to-noise ratio of >35 is attained in 8 s. This advance will enable the measurement of excited state dynamics of systems that are not at structural equilibrium.
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| http://dx.doi.org/10.1364/OL.43.000371 | DOI Listing |
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