A 100 kHz time-resolved multiple-probe femtosecond to second infrared absorption spectrometer

Gregory M. Greetham, Paul M. Donaldson, Charlie Nation, Igor V. Sazanovich, Ian P. Clark, Daniel J. Shaw, Anthony W. Parker, Michael Towrie

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

We present a dual-amplifier laser system for time-resolved multiple-probe infrared (IR) spectroscopy based on the ytterbium potassium gadolinium tungstate (Yb:KGW) laser medium. Comparisons are made between the ytterbium-based technology and titanium sapphire laser systems for time-resolved IR spectroscopy measurements. The 100 kHz probing system provides new capability in time-resolved multiple-probe experiments, as more information is obtained from samples in a single experiment through multiple-probing. This method uses the high repetition-rate probe pulses to repeatedly measure spectra at 10 μs intervals following excitation allowing extended timescales to be measured routinely along with ultrafast data. Results are presented showing the measurement of molecular dynamics over >10 orders of magnitude in timescale, out to 20 ms, with an experimental time response of

LanguageEnglish
Pages645-653
Number of pages9
JournalApplied Spectroscopy
Volume70
Issue number4
Early online date17 Feb 2016
DOIs
Publication statusE-pub ahead of print - 17 Feb 2016

Fingerprint

Infrared absorption
Ytterbium
infrared absorption
Spectrometers
spectrometers
ytterbium
probes
Infrared spectroscopy
infrared spectroscopy
lasers
Light amplifiers
tungstates
Lasers
Aluminum Oxide
Gadolinium
time response
gadolinium
Titanium
Sapphire
Potassium

Keywords

  • laser
  • mid-infrared (Mid-IR)
  • multiple-probing
  • spectroscopy
  • time-resolved
  • ultrafast

Cite this

Greetham, G. M., Donaldson, P. M., Nation, C., Sazanovich, I. V., Clark, I. P., Shaw, D. J., ... Towrie, M. (2016). A 100 kHz time-resolved multiple-probe femtosecond to second infrared absorption spectrometer. Applied Spectroscopy, 70(4), 645-653. https://doi.org/10.1177/0003702816631302
Greetham, Gregory M. ; Donaldson, Paul M. ; Nation, Charlie ; Sazanovich, Igor V. ; Clark, Ian P. ; Shaw, Daniel J. ; Parker, Anthony W. ; Towrie, Michael. / A 100 kHz time-resolved multiple-probe femtosecond to second infrared absorption spectrometer. In: Applied Spectroscopy. 2016 ; Vol. 70, No. 4. pp. 645-653.
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Greetham, GM, Donaldson, PM, Nation, C, Sazanovich, IV, Clark, IP, Shaw, DJ, Parker, AW & Towrie, M 2016, 'A 100 kHz time-resolved multiple-probe femtosecond to second infrared absorption spectrometer' Applied Spectroscopy, vol. 70, no. 4, pp. 645-653. https://doi.org/10.1177/0003702816631302

A 100 kHz time-resolved multiple-probe femtosecond to second infrared absorption spectrometer. / Greetham, Gregory M.; Donaldson, Paul M.; Nation, Charlie; Sazanovich, Igor V.; Clark, Ian P.; Shaw, Daniel J.; Parker, Anthony W.; Towrie, Michael.

In: Applied Spectroscopy, Vol. 70, No. 4, 17.02.2016, p. 645-653.

Research output: Contribution to journalArticle

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Greetham GM, Donaldson PM, Nation C, Sazanovich IV, Clark IP, Shaw DJ et al. A 100 kHz time-resolved multiple-probe femtosecond to second infrared absorption spectrometer. Applied Spectroscopy. 2016 Feb 17;70(4):645-653. https://doi.org/10.1177/0003702816631302