Journal
CHEMICAL PHYSICS LETTERS
Volume 386, Issue 1-3, Pages 184-189Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cplett.2004.01.027
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A novel technique has been developed to passively phase-lock heterodyne-detected three-pulse photon echo experiments for two-dimensional optical spectroscopy. By using a diffractive optic to generate the pulses required, and with careful introduction of the time delays between the pulses, we achieve excellent passive phase-locking, approaching lambda/100 at a wavelength of 540 nm. The ability to generate phase-locked pulse pairs with independent time delays solves a long standing impediment for stable phase sensitive detection in true optical analogues of multi-dimensional nuclear magnetic resonance (NMR) techniques, and should be equally valuable in executing related multi-dimensional spectroscopies in the infrared. (C) 2004 Elsevier B.V. All rights reserved.
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