Open AccessHybrid microspheres for nonlinear Kerr switching devices
Author(s) -
Ilya Razdolskiy,
Simone Berneschi,
G. Nunzi Conti,
S. Pelli,
Т. В. Мурзина,
Giancarlo C. Righini,
Silvia Soria
Publication year - 2011
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.19.009523
Subject(s) - materials science , kerr effect , polyfluorene , optics , resonator , laser , optoelectronics , nonlinear optics , optical switch , polymer , nonlinear system , physics , conjugated system , quantum mechanics , composite material
Electronic Kerr effect in a polyfluorene derivative is used to reversibly switch near infrared probe beam resonantly coupled to a hybrid polymer-silica microspherical resonator. NIR pumping at 780 nm in pulsed laser regime is used for non-linear switching of the WGM resonances that shift as much as 2 GHz for 50 mW of average pump power, compared to a shift of 250 MHz for the same average pump power at CW regime. The absence of temporal drift and the magnitude of this shift confirm the Kerr nature of the switching, ruling out thermooptical effects.