Share Email Print
cover

Proceedings Paper

Transient and persistent hole-burning of photosystem II preparations
Author(s): John M. Hayes; D. Tang; Ryszard Jankowiak; Gerald J. Small
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Small clusters of atoms and molecules formed by supersonic expansion are found in a given experiment at different levels of aggregation and in multiple isomeric forms. The spectra of such aggregates nucleated by aromatic molecules can be analyzed in detail through the use of hole-burning spectroscopy. The present approach employs two pulsed dye lasers at approximately 1 cm-1 resolution, separated in time by 120 ns. Through detailed analysis of vibrational mode structure, the evolution of the spectroscopic properties of probe molecules can be followed as a function of cluster size and structure. Particular points of interest include the development of low-frequency modes due to intermolecular motion and the perturbation of out-of-plane modes of the aromatic host species. The application of picosecond time-correlated single- photon counting to the transfer of vibrational energy in small clusters, and some structural changes initiated by such transfer, is also described.

Paper Details

Date Published: 1 July 1991
PDF: 9 pages
Proc. SPIE 1435, Optical Methods for Ultrasensitive Detection and Analysis: Techniques and Applications, (1 July 1991); doi: 10.1117/12.44249
Show Author Affiliations
John M. Hayes, Ames Lab.-U.S. Dept. of Energy/Iowa State Univ. (United States)
D. Tang, Ames Lab.-U.S. Dept. of Energy/Iowa State Univ. (United States)
Ryszard Jankowiak, Ames Lab.-U.S. Dept. of Energy/Iowa State Univ. (United States)
Gerald J. Small, Ames Lab.-U.S. Dept. of Energy/Iowa State Univ. (United States)


Published in SPIE Proceedings Vol. 1435:
Optical Methods for Ultrasensitive Detection and Analysis: Techniques and Applications
Bryan L. Fearey, Editor(s)

© SPIE. Terms of Use
Back to Top