In this research, we presents a novel design for an all-electrical single photon emitter that utilizes a single electron pump and a lateral p-n junction based on an AlGaAs/GaAs heterostructure. The fundamental promise of single photon emission is achieved by injecting one and only one electron into the p-n junction, where one photon is generated after e-h radiative recombination. This ensures an intrinsically on-demand and deterministic single photon source. Up to GHz repetition rate is expected given the single electron pump has demonstrated quantized generation of electrons in the GHz range. We will present some promising stable EL emission after overcoming the charge accumulation problem in our dopant-free architecture.
In this paper line x-ray emission from aluminum plasma at wavelength within range of 5 - 7 angstrom was studied
numerically. The plasma was assumed to be produced by irradiating of aluminum target by long laser pulses
(1000 ps ≥ τp ≥ 50 ps) at intensities up to I = 5×1016Wcm-2. The plasma hydrodynamics was simulated by EHYBRID
code. Using the data from this code and Saha-Boltzmann equation; the x-ray spectrum and total x-ray yield of the plasma
were calculated within the time scale of irradiation. The influences of laser intensity as well as pulse duration on the total
yield of x-ray line emission were investigated. The results show that, the emitted x-ray lines at the above wavelength
range has duration similar to that of the laser pulse and the total x-ray yield can be increased by increasing laser intensity
and pulse duration.
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