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Various temporally-dependent polarization states of ultrashort laser pulses have been reconstructed in a single shot measurement by angle-multiplexed spatial-spectral interferometry.
We demonstrate efficient generation of bandwidth-tunable ultrafast mid-infrared laser pulses at 5 μm in a dual-chirped optical parametric amplification scheme based on ZnGeP2 crystals using material dispersion to introduce chirp, resulting in low optical loss.
Fuzzy control theory is applied in this study for the control of indoor air quality and energy consumption. The air quality index is considered in this study. For the air temperature and the humidity, the ventilation and the air conditioning are both variables for the output control system. The indoor temperature, the humidity and the air quality are parameters to control the indoor environmental...
Three-dimensional particle-in-cell simulation was applied to study the problem of quasi-phase matched (QPM) direct laser acceleration (DLA) of electron bunches. Energetic electron bunches can be efficiently accelerated by well-guided radially polarized laser pulses in density-modulated plasma waveguides1,2. However, the electrostatic field arising from the plasma waves excited by the laser ponderomotive...
An angle-multiplexed spatial-spectral interferometry between an arbitrary polarized signal pulse and two orthogonal linearly polarized reference pulses is demonstrated to characterize the polarization state and relative spectral phase of a radially polarized laser pulse.
This paper presents a novel design to control defect sites and to enhance sensitivity in graphene-based pH and biological sensors. We showed that pristine graphene was not sensitive to the pH. We demonstrated that the pH sensitivity of graphene could be controlled by varying the patterns and lengths of edges that were created using simple processes of photolithography and dry etching.
Production of intense infrared pulses with 250-muJ pulse energy from a laser wakefield accelerator is demonstrated. It is strongly correlated with the production of self-injected monoenergetic electron beam.
Backward Raman amplification of a short laser pulse in a plasma waveguide is demonstrated. Besides providing a larger gain, the plasma waveguide also suppresses premature Raman backscattering of the pump pulse.
Backward Raman amplification of a short laser pulse in a plasma waveguide is demonstrated. Besides providing a larger gain, the plasma waveguide also suppresses premature Raman backscattering of the pump pulse.
Backward Raman amplification of a short laser pulse in a plasma waveguide is demonstrated. Besides providing a larger gain, the plasma waveguide also suppresses premature Raman backscattering of the pump pulse.
Degenerate four-wave mixing mediated by ponderomotive-force-driven plasma gratings is demonstrated in the near-infrared regime, which may be used to compensate for wavefront distortion occurring in various laser-plasma-based devices.
Enhancement of relativistic third-harmonic generation by using a periodic plasma waveguide is achieved. Resonant dependence of harmonic intensity on plasma density modulation parameters is observed, which is a distinct characteristic of quasi-phase matching.
Enhancement of relativistic third-harmonic generation by using a periodic plasma waveguide is achieved. Resonant dependence of harmonic intensity on plasma density modulation parameters is observed, which is a distinct characteristic of quasi-phase matching.
Degenerate four-wave mixing mediated by ponderomotive-force-driven plasma gratings is demonstrated in the near-infrared regime, which may be used to compensate for wavefront distortion occurring in various laser-plasma-based devices.
Tomography of high harmonic generation in a cluster jet was achieved by using laser machining. The growth curves help explain the optimal backing pressure, which is ascribed to the change in phase matching condition.
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