|Title:||Formation of higher-band dark gap solitons in one dimensional waveguide arrays||Authors:||Dong, Rong
Rüter, Christian E.
|Language:||en||Subject (DDC):||DDC::500 Naturwissenschaften und Mathematik||Issue Date:||Dec-2010||Publisher:||Soc.||Document Type:||Article||Journal / Series / Working Paper (HSU):||Optics express||Volume:||18||Issue:||26||Page Start:||27493||Page End:||27498||Publisher Place:||Washington, DC||Abstract:||
We experimentally observe the formation of spatial dark gap solitons in higher bands in one-dimensional waveguide arrays possessing a saturable defocusing nonlinearity. By using the prism-coupler scheme, pure Floquet-Bloch modes of higher bands are excited and dark gap solitons are formed due to the counteraction of normal diffraction and the defocusing nature of the photovoltaic nonlinearity. The modulation of refractive index induced by the soliton formation is demonstrated by the guidance of a low-power probe beam in the waveguide array sample. Additionally, the phase structure of dark solitons formed in the second band is discussed.
|Organization Units (connected with the publication):||Experimentalphysik und Materialwissenschaften||URL:||https://api.elsevier.com/content/abstract/scopus_id/78650546176||ISSN:||1094-4087||DOI:||10.1364/OE.18.027493|
|Appears in Collections:||Publications of the HSU Researchers|
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