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Note: A flexible light emitting diode-based broadband transient-absorption spectrometer
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10.1063/1.4712634
/content/aip/journal/rsi/83/5/10.1063/1.4712634
http://aip.metastore.ingenta.com/content/aip/journal/rsi/83/5/10.1063/1.4712634
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Long-time pump-probe setup, utilizing the HPLS-36 LED driver system (1) and beam homogenizer (2). Most components are adjustable along the x and y axes. Pump source can be either ultrafast or ns pulsed lasers.

Image of FIG. 2.
FIG. 2.

(a) Spectra of several LED sources for the HPLS-36 with wavelengths indicated in the inset (W-L1 = 3500 K, W-L2 = 5500 K). (b) Spectral and intensity stability was measured and is displayed here for the broadband spectral range of the 5500 K (WHITE-LIGHT2) LED where the averaged spectrum is shown in blue.

Image of FIG. 3.
FIG. 3.

NpR6012g4 transient dynamics. (a) Transient absorption spectra of the Pg → Pr reaction of NpR6012g4 initiated with 532-nm excitation at select probe delay times. Spectra are overlaid with the (inverted) Pg and the Pr ground-state spectra as labeled. (b) Kinetic traces displayed at wavelengths associated with Pr ground-state absorption (650 nm) and blueshifted intermediate (575 nm). Data after the x axis break was obtained using the setup detailed here and is displayed with corresponding ultrafast data.

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/content/aip/journal/rsi/83/5/10.1063/1.4712634
2012-05-25
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Note: A flexible light emitting diode-based broadband transient-absorption spectrometer
http://aip.metastore.ingenta.com/content/aip/journal/rsi/83/5/10.1063/1.4712634
10.1063/1.4712634
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