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Rapid scaling of semiconductor devices has led to an increase in the number of processor cores and integrated functionalities onto a single chip to support the growing demands of high‐speed and large‐volume consumer electronics. To meet this burgeoning demand, an improved interconnect capacity in terms of bandwidth density and active tunability is required for enhanced throughput and energy efficiency...
Multimode terahertz (THz) laser emission around 3.2 THz in one-dimensional (1-D) disordered systems with 20% disorder. Simulation and experimental work provide evidence for spatial localization of light of defect modes within the bandgap frequency window.
We show that topological insulator crystals are an excellent plasmonic platform in the UV to near-IR part of the spectrum, thanks to the interplay of interband transitions and Drude-like response of metallic surface states. This opens up exciting opportunities for the integration of plasmonic, electronic and spintronic devices.
Multi-mode random terahertz lasing with strongly localized modes has been realized for the first time, by fabricating two dimensional randomly distributed quantum cascade pillars with a small short-range order.
Electrically pumped random lasers, operating in the mid‐infrared regime at λ ≈ 10 μm, are realized for the first time. Randomly distributed air holes are patterned onto a quantum cascade wafer emitting in the transverse‐magnetic (TM) polarization. The advantage of employing TM polarized gain medium is that TM modes are more effectively confined in the gain region, and thus improve lasing efficiency...
A photonic topological insulator can be constructed from a lattice of ring resonators, without using aperiodic couplers or metamaterials. With gain and loss, the system can function as an optical diode for coupled resonator modes.
We demonstrate experimentally one-way waveguiding in a gyromagnetic photonic crystal. The complete suppression of back-scattering, even in the presence of very large scatterers, allows intriguing applications such as slow light.
A broadband one-way waveguide is numerically demonstrated at the surface of a 2D magneto-optical photonic crystal containing Yttrium-Iron-Garnet. The strong time-reversal breaking results in the absence of backward-propagating modes and scattering-immune transmission across strong scatters.
A broadband one-way waveguide is numerically demonstrated at the surface of a 2D magneto-optical photonic crystal containing Yttrium-Iron-Garnet. The strong time-reversal breaking results in the absence of backward-propagating modes and scattering-immune transmission across strong scatters.
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