Nathaniel Kinsey

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A high-temperature stable broadband plasmonic absorber is designed, fabricated, and optically characterized. A broadband absorber with an average high absorption of 95% and a total thickness of 240 nm is fabricated, using a refractory plasmonic material, titanium nitride. This absorber integrates both the plasmonic resonances and the dielectric-like loss.(More)
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)
N. KINSEY, C. DEVAULT, J. KIM, M. FERRERA, V. M. SHALAEV, AND A. BOLTASSEVA* School of Electrical and Computer Engineering and Birck Nanotechnology Center, Purdue University, West Lafayette, Indiana 47907, USA Department of Physics and Birck Nanotechnology Center, Purdue University, West Lafayette, Indiana 47907, USA School of Engineering and Physical(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)
New propagation regimes for light arise from the ability to tune the dielectric permittivity to extremely low values. Here, we demonstrate a universal approach based on the low linear permittivity values attained in the ε-near-zero (ENZ) regime for enhancing the nonlinear refractive index, which enables remarkable light-induced changes of the material(More)
switching at telecom wavelengths outpacing the traditional amplitude-bandwidth trade-off: supplementary material N. KINSEY, C. DEVAULT, J. KIM,1 M. FERRERA, V.M. SHALAEV, AND A. BOLTASSEVA 1 School of Electrical and Computer Engineering and Birck Nanotechnology Center, Purdue University, West Lafayette, Indiana 47907, USA 2 Department of Physics and Birck(More)
One of the best-known trends in technology is Moore’s law, which predicts that the number of transistors in a central processing unit (CPU) will double every two years. It has guided the long-term strategy of the semiconductor industry since 1965, but is quickly reaching its limits due to fundamental size constraints on transistors. Currently available CPUs(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)
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)
We have experimentally demonstrated the broadband enhancement of single-photon emission from nanodiamond NV centers coupled to planar multilayer metamaterial with hyperbolic dispersion. A tapered metamaterial waveguide for efficient outcoupling of high-k metamaterial modes has been numerically studied and fabricated. Introduction: The major thrust of(More)