Work

Vibrational response of surface adsorbates to femtosecond substrate heating

Year: 1993

Type: article

Abstract: The transient response of the internal stretch vibration of CO molecularly adsorbed on Cu(111) has been measured following the impulsive (300 fs) excitation of electrons in the underlying metal substrate by a visible light pulse. It is proposed that the stretch vibration couples indirectly to substrate phonon and electron reservoirs via the frustrated translational surface mode. The couplings to the bulk electron reservoir with a rate γe= 167(24) GHz, and to the bulk phonon reservoir with a rate γL= 145(56) GHz were measured. The experiments represent an important step towards surface control of specific states of molecular adsor- bates near their desorption threshold

Source: Chemical Physics Letters

DOI: 10.1016/0009-2614(93)85661-7

Authors: J.P. Culver, M. Li, L.G. Jahn, R.M. Hochstrasser, A.G. Yodh

Institution: University of Pennsylvania

Language: English

Topic: Laser-Matter Interactions and Applications

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,270

Funder: National Science Foundation