UV free electron laser
Practical considerations for the ion channel free-electron laser
... ρ electron beams with realistic amplitude spreads and emittance can be used to drive the ICL efficiently at fundamental wavelengths down to UV, with harmonics extending into ...
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Two-colour free electron laser with wide frequency separation using a single monoenergetic electron beam
... the UV into the x-ray using different con fi gurations of an FEL ampli fi ...an electron beam composed of ‘ beamlets ’ of more than one energy [6 – ...
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A high average current electron source for the Jefferson Laboratory free electron laser
... FELs can be configured in two ways, either as an amplifier or an oscillator. In an amplifier, as its name suggests, the spontaneous radiation is amplified as it passes through the undulator on a single pass. For the ...
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All femtosecond optical pump and X-ray probe: holey-axicon for free electron laser
... We introduced the concept of a co-axial pump(optical)-probe(X-ray) diagnostic technique based on XRD developed at SACLA. It was shown that a fs-laser writing technique for flat optical elements can inscribe the ...
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Laser heater commissioning at an externally seeded free-electron laser
... external laser pulse for the FERMI LH consists of a small portion of the overall photocathode Ti ∶ Sa drive laser pulse, removed just before the latter is harmonically up- converted to the ...the ...
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The ion channel free-electron laser with varying betatron amplitude
... example indicates the requirements for operating an ICL down to UV fundamental wavelengths, with harmonics potentially extending to x-rays. A high value of ρ is essential for reconciling the requirement of low ...
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Start-to-end modelling of a mode-locked optical klystron free electron laser amplifier
... The Sec. III B showed that use of an HH seed allows control of the envelope and relative phases of the radiation pulse train over lengths significantly greater than the cooper- ation length, and that pulse broadening ...
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Electrochemical Preparation of Particles for X-Ray Free Electron Laser Based Diffractive Imaging
... X-ray Free Electron Laser (XFEL) at Elettra will be a powerful tool of investigation in new fields of materials science, based on ultrashort EUV ...
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Echo enabled harmonic generation free electron laser in a mode-locked configuration
... In demonstrating the principle of EEHG, the work of [10,11] applied periodic boundary conditions in the posi- tion of the electrons across a region of the longitudinal z-axis. Here, no such boundary conditions are ...
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Electromagnetic field measurements inside photonic crystals developing a photonic free electron laser
... Alternatively, when a large number of separate electron beams are re- quired, a field emission cathode can be used (see fig. 2.1). Here the cathode consists of regular array of cones with very sharp tips placed in ...
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<em>Memecylon edule</em> leaf extract mediated green synthesis of silver and gold nanoparticles
... by UV-visible spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive X-ray analysis (EDAX) and Fourier transform infra-red spectroscopy ...by ...
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A wide bandwidth free-electron laser with mode locking using current modulation
... the electron beam energy at the mode spacing. As with the atomic laser, this mode locking modifies the temporal envelope of the output field from a continuous wave to a series of short, periodically spaced ...
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A Review Study on Amplification of X Ray Free Electron Laser Pulse in Plasma
... intense laser pulses (optical and X-ray regime) through Backward Raman amplification (BRA) in ...amplify laser pulses extends back to work carried out 40 years ago when researchers used gases and liquids to ...
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Serial Femtosecond X-ray Diffraction of HIV-1 Gag MA-IP6 Microcrystals at Ambient Temperature
... microcrystals in liquid suspension at ambient temperature using an X-ray free-electron laser. MicroED opens a new era for biological structure determination[r] ...
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Spectroscopic Characterization of the Product Ions Formed by Electron Ionization of Adamantane
... Electron ionization of adamantane produces a prominent mass peak at m/z 79 (see Figure 1). An obvious candidate structure for this fragment is protonated benzene, but alternative structures are not a priori ...
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The quantum free electron laser
... Free-electron lasers (FELs) have demonstrated the ability to produce coherent radiation ranging from the microwave to the X-ray region of the electromagnetic spectrum. Although the first theoretical studies ...
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The application of extreme ultra-violet lasers in plasma heating and diagnosis
... of laser-produced plasmas can be created with capillary discharge and free electron lasers operating in the extreme ultra-violet ...critical electron density above electron densities ...
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Structure of Single Particles from Randomly Oriented Ensembles Using an X-Ray Free Electron Laser
... difference electron density directly from the measured ...difference electron density calculated by our algorithm of the expected difference structure of photoactive yellow protein (PYP) 2 ms after ...of ...
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Antioxidant activity and green synthesis of selenium nanoparticles using allium sativum extract
... The DPPH assay was done according to the method of [20] with some modifications. The radical scavenging and antioxidant potential of the plant extracts were determined by the ability of plant extracts to scavenge the ...
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Theoretical Study of Electron Transfer Process Between Fullerenes and Membrane Cells of Helicobacter pylori
... the electron transfer process between Helicobacter pylori bacteria and the selected fullerenes construct the dipolar complexes to perform a condition for ...
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