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

Fabio Antonio Bovino, Maria Cristina Larciprete, Concita Sibilia, Gregory Leahu, György Váró, Csilla Gergely

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5 Citations (Scopus)

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(2ω) contribution to the SHG signal.

Original languageEnglish
Pages (from-to)568-575
Number of pages8
JournalJournal of the Optical Society of America B: Optical Physics
Volume30
Issue number3
DOIs
Publication statusPublished - Mar 2013

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ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Atomic and Molecular Physics, and Optics

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