We experimentally investigated thermal nonlinear effects in a hybrid $\mathrm{Au}/{\mathrm{SiO}}_2/\mathrm{SU}\text{-}8$ plasmonic microring resonator for nonlinear switching. Large ohmic loss in the metal layer gave rise to a high rate of light-to-heat conversion in the plasmonic waveguide, causing an intensity-dependent thermo-optic shift in the microring resonance. We obtained 30 times larger resonance shift in the plasmonic microring than in a similar SU-8 dielectric microring. Using an in-plane pump-and-probe configuration, we also demonstrated all-plasmonic nonlinear switching in the plasmonic microring with an on–off switching contrast of $4\mathrm{dB}$ over $50\mathrm{mW}$ input power.

© 2011 Optical Society of America

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

Related Journal Articles

• Numerical investigation of quasi-coplanar plasmonic waveguide-based photonic components (OE)
• Cutoff characteristics of dielectric-filled circular holes embedded in dispersive plasmonic medium (COL)
• Characteristics of plasmonic Bragg reflectors with insulator width modulated in sawtooth profiles (OE)
• Conductor-gap-silicon plasmonic waveguides and passive components at subwavelength scale (OE)
• Analysis and applications of 3D rectangular metallic waveguides (OE)

Related Conference Papers

• Enhanced nonlinear optical response and all-optical switching in AlGaAs micro-ring resonators
• All-optical switching in SU-8 conductor-gap-dielectric plasmonic microring resonator using thermal nonlinearity
• Theoretical Investigation of CMOS-Compatible Metal-Oxide-Silicon-Oxide-Metal Waveguides
• Nonlinear Effects in Subwavelength Plasmonic Directional Couplers
• Experimental Investigation of CMOS-Compatible Metal-Insulator-Silicon-Insulator-Metal Waveguides