Open AccessPrecise phasing of 2D-electronic spectra in a fully non-collinear phase-matching geometry
Author(s) -
Franz Milota,
Craig N. Lincoln,
Jürgen Hauer
Publication year - 2013
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.21.015904
Subject(s) - optics , grating , measure (data warehouse) , phase (matter) , phaser , signal (programming language) , physics , spectroscopy , spectral line , noise (video) , geometry , computer science , mathematics , quantum mechanics , database , astronomy , artificial intelligence , image (mathematics) , programming language
We report an experimental design for two-dimensional electronic spectroscopy (2D-ES) that avoids the need to measure notoriously weak pump-probe spectra. Retaining a fully non-collinear folded boxcar geometry, the described layout replaces pump-probe with heterodyned transient grating (het-TG). The absorptive component of the het-TG signal is measured directly, following a straightforward optimization routine. The use of het-TG achieves an improvement in signal to noise ratio by almost two orders of magnitude. As a result, 2D-ES-signals down to 0.5% can be clearly resolved.