Detection of second-order nonlinear optical magnetization by mapping normalized Stokes parameters

Bovino, Fabio Antonio and Larciprete, Maria Cristina and Sibilia, Concita and Leahu, Gregory and Váró, György and Gergely, Csilla (2013) Detection of second-order nonlinear optical magnetization by mapping normalized Stokes parameters. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 30 (3). pp. 568-575. ISSN 0740-3224

Preview

Text BovinoFAJOptSocAmB.pdf Download (945kB) | Preview

Abstract

A measurable magnetic (nonlocal) contribution to the second harmonic generation (SHG) of nonmagnetic materials is an intriguing issue related to chiral materials, such as biomolecules. Here we report the detection of an intensity-dependent optically induced magnetization of a chiral bacteriorhodopsin film under femtosecond pulse excitation (830 nm) and far from the material's resonance. The analysis of the pump intensity-dependent noncollinear SHG signal, by means of the polarization map of normalized Stokes parameters, allows one to improve the detection of the nonlinear optical magnetization M (2 omega) contribution to the SHG signal. (c) 2013 Optical Society of America

Actions (login required)

Edit Item