Nonresonant double-pulse selective spectroscopy of interaction-induced response in liquids through an optically-heterodyne-detected optical-Kerr-effect. (22nd June 2015)

• Record Type: Journal Article
• Authors: Nikiforov, V G; Lobkov, V V; Samartsev, V V
• Is Part Of: Laser physics. Volume 25:Number 7(2015:Jul.)
• Publication Date: 2015-06-22
• Subjects: multiple-pulse selective spectroscopy -- coherent control -- ultrafast optical Kerr effect; Lasers -- Periodicals; 621.36605
• DOI: 10.1088/1054-660X/25/7/075701
• Languages: English
• ISSNs: 1054-660X

Abstract

Abstract: We propose and analyze theoretically the implementation of two pump pulses with orthogonal linear polarization for the separate measurement of an interaction induced response in liquids through the optically-heterodyne-detected optical-Kerr-effect. The key parameters controlling the specificity of the double-pulse excitation scenarios are the pulse duration, the delay between pulses and the relation between the pump pulses amplitudes. We use acetonitrile as an example to model the fifth-order optical response and consider some principles of the scenarios construction. We show that it is possible to adjust the excitation scenario in such a way that the intramolecular and orientational responses are removed from the detected signal. The theoretical analysis reveals that the double-pulse excitation technique can be useful for the selective spectroscopy of the interaction induced responses of the molecules in liquid.