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The described is the bow-tie slot antenna with a slightly bent aperture. The use of the bent aperture allows to increase gain in the upper frequency band compared to an antenna with a flat aperture.
Coherent interaction between a quantum dot and a resonant laser is observed through an incoherent read-out channel created by coupling to an off-resonant cavity. Under bichromatic driving of the quantum dot optical output collected from the off-resonant cavity exhibits two peaks, a signature of Rabi-side bands that matches closely with our theoretical model. The off-resonant cavity provides a convenient...
A circularly-polarised antenna which has a novel feeding structure like a substrate integrated waveguide, a cavity-backed resonator and a conventional ring-slot antenna is proposed for right-handed circular polarisation (RHCP) in a single-layered fabrication. The CP generation and broadband impedance matching characteristics are accomplished by using a simple shorting via between the top patch and...
A new Fabry-Perot cavity antenna simultaneously producing a high-gain and a wide beamwidth is proposed. To get increased antenna gain and reduced back radiation, all the openings of the antenna are enclosed with metallic walls, and to obtain a broader beamwidth, the antenna has been fabricated in a rectangular shape, with an aspect ratio of about 3.5:1. In addition we propose a new method to more...
We report a fiber laser that produces 25 nJ, sub-200 fs pulses, an energy 60% higher than previous reports. We attribute the improvement to increased pump power and spectral filtering by the oscillatorpsilas waveplates.
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