Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/601

Title

Spectrally resolved two-color femtosecond photon echoes: A new multidimensional technique for studying molecular dynamics

Author(s)

Dao, Lap Van;  Lincoln, Craig;  Lowe, Ralph M.;  Do, My T. T.;  Eckle, Petrisa;  Hannaford, Peter

Abstract

We describe a potentially powerful multidimensional coherent technique based on spectrally resolved two-color three-pulse femtosecond photon echoes in the visible for probing vibrational and electronic dynamics in the ground and excited states of complex molecular systems. Spectral analysis of the photon echo signals yields detailed information about the temporal evolution of the amplitude of the nonlinear polarization induced in the sample by the three femtosecond pulses, while suitable selection of the wavelengths of the laser pulses allows different sets of energy levels to be selected and the dynamics of vibrational levels in the ground and excited electronic states to be separated and investigated. Two-color photon echo spectra are presented for a range of molecular systems, including the dye molecules Rhodamine 101 and cresyl violet, the biological molecules lycopene and myoglobin, the blue-emitting semiconductor gallium nitride, and semiconductor CdTe/ZnSe quantum dots.

Publication type

Journal article

Research centre

Swinburne University of Technology. Faculty of Engineering and Industrial Sciences

Source

Laser Physics, Vol. 15, no. 9 (2005), pp. 1257-1268

Publication year

2005

Publisher

MAIK Nauka-Interperiodica

ISSN

1054-660X

Publisher URL

http://www.lasphys.com/lasphys.htm

Peer reviewed