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We propose several planar layouts of ultra-compact plasmonic modulators that utilize alternative plasmonic materials such as transparent conducting oxides and titanium nitride. The modulation is achieved by tuning the carrier concentration in a transparent conducting oxide layer into and out of the plasmon resonance with an applied electric field. The… (More)
Transparent conducting oxides have recently gained great attention as CMOS-compatible materials for applications in nanophotonics due to their low optical loss, metal-like behavior, versatile/tailorable optical properties, and established fabrication procedures. In particular, aluminum-doped zinc oxide (AZO) is very attractive because its dielectric… (More)
An insulator-metal-insulator plasmonic interconnect using TiN, a CMOS-compatible material, is proposed and investigated experimentally at the telecommunication wavelength of 1.55 µm. The TiN waveguide was shown to obtain propagation losses less than 0.8 dB/mm with a mode size of 9.8 µm on sapphire, which agree well with theoretical predictions. A… (More)
Hyperbolic metamaterials (HMMs) have shown great promise in the optical and quantum communities due to their extremely large, broadband photonic density of states. This feature is a direct consequence of supporting photonic modes with unbounded k-vectors. While these materials support such high-k waves, they are intrinsically confined inside the HMM and… (More)
– In this work, a design of ultra-compact plasmonic modulator is proposed and numerically analyzed. The device layout utilizes alternative plasmonic materials such as transparent conducting oxides and titanium nitride which potentially can be applied for CMOS compatible process. The modulation is obtained by varying the carrier concentration of the… (More)
We have theoretically investigated a metasurface as a unidirectional surface plasmon polariton (SPP) coupler. The structure can work over a broad bandwidth in the visible region.
In this work we report low-loss insulator-metal-insulator plasmonic interconnects using the CMOS-compatible material titanium nitride. The mode profile shows the characteristic exponential decay of the plasmonic regime, with propagation losses as low as 0.79 dB/mm.
This document provides supplementary information to " Epsilon-near-zero Al-doped ZnO for ultrafast switching at telecom wavelengths outpacing the traditional amplitude-bandwidth trade-off, " http://dx.doi.org/10.1364/ optica.2.000616. A detailed discussion of a hybrid plasmonic modulator using aluminum doped zinc oxide as the dynamic material and the… (More)