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Optics Letters

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  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 7 — Apr. 1, 2014
  • pp: 1717–1720

Probing ultrafast temperature changes of aqueous solutions with coherent terahertz pulses

Ellen H. G. Backus, Klaas-Jan Tielrooij, Mischa Bonn, and Huib J. Bakker  »View Author Affiliations


Optics Letters, Vol. 39, Issue 7, pp. 1717-1720 (2014)
http://dx.doi.org/10.1364/OL.39.001717


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Abstract

We introduce an infrared pump–terahertz probe technique to measure the thermalization dynamics of aqueous solutions with a time resolution <200fs. This technique makes use of the sensitivity of the terahertz absorption to the temperature of the hydrogen bond network. The thermalization dynamics of different aqueous solutions are measured and compared to the dynamics inferred from ultrafast infrared pump–infrared probe measurements on the intramolecular stretch vibration of water. This technique can shed new light on important aspects of energy transfer and heat dynamics and is applicable to a wide range of systems.

© 2014 Optical Society of America

OCIS Codes
(300.6340) Spectroscopy : Spectroscopy, infrared
(300.6500) Spectroscopy : Spectroscopy, time-resolved
(300.6495) Spectroscopy : Spectroscopy, teraherz

ToC Category:
Spectroscopy

History
Original Manuscript: December 20, 2013
Manuscript Accepted: February 10, 2014
Published: March 17, 2014

Citation
Ellen H. G. Backus, Klaas-Jan Tielrooij, Mischa Bonn, and Huib J. Bakker, "Probing ultrafast temperature changes of aqueous solutions with coherent terahertz pulses," Opt. Lett. 39, 1717-1720 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-7-1717

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