OSA's Digital Library

Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 7, Iss. 3 — Feb. 29, 2012

Transient two-dimensional spectroscopy with linear absorption corrections applied to temperature-jump two-dimensional infrared

Kevin C. Jones, Ziad Ganim, Chunte Sam Peng, and Andrei Tokmakoff  »View Author Affiliations


JOSA B, Vol. 29, Issue 1, pp. 118-129 (2012)
http://dx.doi.org/10.1364/JOSAB.29.000118


View Full Text Article

Enhanced HTML    Acrobat PDF (1537 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

Multidimensional spectroscopies provide increased spectral information but time resolution is often limited by the picosecond lifetimes of the transitions they probe. At the expense of additional complexity, transient multidimensional techniques extend the accessible timescales for studying nonequilibrium chemical and biophysical phenomena. Transient temperature-jump (T-jump) experiments are particularly versatile, since they can be applied to any temperature-dependent change of state. We have developed a method to correct transient nonlinear techniques for distortions resulting from transient linear absorption of the probing pulses, distortions which can lead to false interpretations of the data. We apply these corrections in the collection of T-jump transient two- dimensional infrared spectra for the peptides diglycine and the β-hairpin peptide trpzip2. For diglycine, the T-jump induces changes in H-bonding, a response which is inherent to all aqueous systems. The trpzip2 results probe the hairpin unfolding kinetics and reveal two time scales: < 10 ns increased flexibility and 1.1 μs β-hairpin disordering.

© 2011 Optical Society of America

OCIS Codes
(120.6200) Instrumentation, measurement, and metrology : Spectrometers and spectroscopic instrumentation
(300.6290) Spectroscopy : Spectroscopy, four-wave mixing
(300.6340) Spectroscopy : Spectroscopy, infrared
(300.6420) Spectroscopy : Spectroscopy, nonlinear
(300.6500) Spectroscopy : Spectroscopy, time-resolved
(320.7150) Ultrafast optics : Ultrafast spectroscopy

ToC Category:
Spectroscopy

History
Original Manuscript: September 22, 2011
Manuscript Accepted: October 14, 2011
Published: December 9, 2011

Virtual Issues
Vol. 7, Iss. 3 Virtual Journal for Biomedical Optics

Citation
Kevin C. Jones, Ziad Ganim, Chunte Sam Peng, and Andrei Tokmakoff, "Transient two-dimensional spectroscopy with linear absorption corrections applied to temperature-jump two-dimensional infrared," J. Opt. Soc. Am. B 29, 118-129 (2012)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=josab-29-1-118

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited