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Interference between single photons lies at the heart of linear optical quantum computing (LOQC). However, the lack of deterministic single photon sources hinders the large-scale experimental demonstration and its practical applications, as the probability to generate N single photons simultaneously (denoted by N-photon hereafter) decreases exponentially with the increasing number of single photon...
Advances in circuit techniques, aided by continued lithographic scaling, will deliver CMOS technology capable of operation in the submillimeter-wave bands. Many building blocks operating at near-THz frequencies in silicon-based technologies (SiGe and CMOS) have appeared in the recent literature. Although many significant challenges remain, these results suggest that CMOS THz ICs are an inevitability...
A photonic Free-Electron Laser is a novel device concept that uses multiple electron beams and a photonic crystal to enable both frequency- and power-scaling. Particle-in-cell calculations show that the three-beam provides more than 3× the power of the single-beam device, 290 vs 35 W.
Sending electrons through photonic crystals (PhC) is of high interest for generating widely tunable, coherent light. We present the novel concept of a tunable laser based on Cerenkov radiation from electrons in a PhC.
High mode confinement and modal sparsity in subwavelength metallic-plasmonic coaxial cavities enable the demonstration of continuous-wave and room-temperature lasing at telecommunication wavelengths in the smallest cavities to date.
We present a 10-Gb/s, 1×4 optical link based on a DRAM-integration-ready bulk-silicon modulator for multi-drop CPU-DRAM interconnects. The bulk-silicon modulator operated at 10 Gb/s on a die, and at 5 Gb/s in a QFP package. The 1×4 optical link was limited not by signal integrity but by optical power budget, demonstrating its scalable capacity for the future multi-drop memory bus.
Microfabricated thermionic emitters form a crucial part of thermionic energy converters, which could find applications in future concentrated solar thermal power plants. Here we report a new stress-relieved design for p-doped and n-doped silicon carbide (SiC) emitters, measurements of their thermionic emission and work functions at temperatures of up to 2900K, and the effect of optical irradiation...
One-dimensional nanobeam lasers in which the width of waveguide is parabolically tapered are explained in detail. In the vicinity of the tapered region where Gaussian photonic well is formed, a few high-Q resonant modes are experimentally confirmed. It is also found that the far-field radiation profile is closely associated with the symmetry of the structure.
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