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In science fiction, firing powerful lasers looks easy -- the Death Star can just send destructive power hurtling through space as a tight beam. But in reality, once a powerful laser has been fired, ca...
Spectrometric Measurement of Plasma Parameters Utilizing the Target Ambient Gas O I & N I Atomic Lines in LIBS Experiment
LIBS Self Absorption O I-N I Lines Plasma Parameters
2013/1/30
In this article, we shall report the results of the spectroscopic measurements of the plasma parameters utilizing the spectral lines emitted from the air atoms surrounding plasma (O I line at 777.19 n...
Measurements of Plasma Electron Temperature Utilizing Magnesium Lines Appeared in Laser Produced Aluminum Plasma in Air
LIBS Self Absorption Mg-Lines Plasma Parameters
2013/1/30
We have utilized the relative intensity of magnesium lines originated from the Mg I at 285.2 nm and Mg II at 280.27, 279.55 nm to measure the plasma electron temperature. The plasma was produced via i...
Thermal Temperature Measurements of Plasma Torch by Alexandrite Effect Spectropyrometer
spectropyrometer spectral power thermal plasma
2011/4/21
An alexandrite effect spectropyrometer is used to directly measure the thermal temperature of an argon gas plasma jet from a 100 kW DC plasma torch, and the directly measured thermal temperature...
Effect of energy pooling collisions in formation of a cesium plasma by continuous wave resonance excitation
laser collisional ionization energy pooling plasma cesium
2011/5/6
The generation of plasma in cesium vapor excited by cw laser is investigated theoretically. We
have developed a computational model which quantitatively explains the laser power dependences
of elect...
Filamentation and Energetic Electron Generation in a Plasma Produced from a High Density Gas Jet Irradiated by a TW Laser Pulse
Energetic electron beam Filamentation TW Ti:sapphire laser pulse
2009/6/15
Emission of a well-collimated energetic electron beam has been observed from a plasma of which electron density is higher than 1020 cm-3 produced by a TW Ti:sapphire laser pulse. The maximum energy of...
Development of the Laser-Plasma Ion Source for Cancer Therapy
Hadronic cancer therapy Proton/heavy-ion beam High power laser
2009/6/15
The hadronic cancer therapy is more attractive than the surgery for localized tumor. However, the hadronic radiotherapy seems not to be easily spread out, because it needs huge capital investments as ...
Laser Produced Plasma for EUV Light Source For Lithography
EUV light Laser produced plasma Light source for tin and xenon plasma
2009/6/8
We describe properties of laser produced plasmas (LPP) for extreme ultra violet (EUV) light source for next generation lithography as an industrial application of LPP. We briefly present three topics ...
Plasma Devices to Control Energetic Electrons Produced by Ultra-intense Lasers
Plasma device Cone Plasma fiber
2009/6/1
Several plasma devices to control energetic electrons produced by ultra-intense lasers are studied. Cone targets guide the lasers and electrons, and enhance the generation of energetic electrons conse...
Acoustic processes in RF excited CO2 laser plasma in pulse regime
CO2 laser molecular laser gas laser pulse operation thermodynamic phenomena
2011/5/6
Acoustic response to the CO2 laser pulse generation in the arrangement of the slab-waveguide
structure is considered. The velocity of an acoustic wave in the carbon dioxide laser gas
medium is calcu...
Impedance spectroscopy of suspension plasma sprayed hydroxyapatite coatings
impedance spectroscopy hydroxyapatite suspension
2011/5/11
Impedance spectroscopy was used to investigate the properties of hydroxyapatite (HA) coatings and their dependence on fabrication parameters. The HA layers were deposited on the titanium substrates us...
Net emission coefficients of low temperature thermal iron-helium plasma
net emission coefficients iron-helium plasma
2011/5/5
Net emission coefficients of low temperature thermal iron-helium plasma mixture at atmospheric pressure are presented. The calculations are made assuming the plasma is in the local thermodynamic equil...
The authors demonstrate a detection system of EUV radiation pulses. The system provides energy measurements with uncertainty of 7.3% in the range of wavelengths 13.5 ± 0.5 nm (FWHM = 7.3%). The calibr...
In this paper, results from experiments with Al flyer targets (disks with a diameter of 300 mm and a thickness of 6 mm) accelerated at first to high velocities by PALS iodine laser pulses (with an ene...
In this paper, results from experiments with Al flyer targets (disks with a diameter of 300 mm and a thickness of 6 mm) accelerated at first to high velocities by PALS iodine laser pulses (with an ene...