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RSS2008 Vol. 20, No. 05
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2008,
20.
Abstract:
The interaction between the temperature field and the laser field plays a crucial role in solid-state lasers. In this paper, the optic-thermal coupling in the diode pumped solid-state lasers(DPSSL) is investigated. From the point of view of microcosm...
The interaction between the temperature field and the laser field plays a crucial role in solid-state lasers. In this paper, the optic-thermal coupling in the diode pumped solid-state lasers(DPSSL) is investigated. From the point of view of microcosm...
2008,
20.
Abstract:
Mirror surface reflecting high power laser would be deformed by the pressure of the coolant in a liquid cooling mirror system. In order to eliminate the impact of pressure and vibration of cooling water of micro channel mirror on the stability of the...
Mirror surface reflecting high power laser would be deformed by the pressure of the coolant in a liquid cooling mirror system. In order to eliminate the impact of pressure and vibration of cooling water of micro channel mirror on the stability of the...
2008,
20.
Abstract:
The relation between ratio of parallel and perpendicular polarization components of the airborne lidar’s polarized backscatted signals and crystal thickness are analyzed quantitatively using plane parallel plate pattern and crystal membranous theory ...
The relation between ratio of parallel and perpendicular polarization components of the airborne lidar’s polarized backscatted signals and crystal thickness are analyzed quantitatively using plane parallel plate pattern and crystal membranous theory ...
2008,
20.
Abstract:
The physical models of spectral beam combining for two beams and three beams by one and two reflective volume Bragg gratings(VBG) are founded in this article. The physical models consider the absorbability of VBG and suppose that the incident beam ha...
The physical models of spectral beam combining for two beams and three beams by one and two reflective volume Bragg gratings(VBG) are founded in this article. The physical models consider the absorbability of VBG and suppose that the incident beam ha...
2008,
20.
Abstract:
The diffraction equations for continuous subwavelength dielectric polarization gratings are derived using Jones matrix approach. The polarization characteristics and diffraction efficiencies are also discussed. The results show that, by setting up th...
The diffraction equations for continuous subwavelength dielectric polarization gratings are derived using Jones matrix approach. The polarization characteristics and diffraction efficiencies are also discussed. The results show that, by setting up th...
2008,
20.
Abstract:
Time-resolved photos of the discharge of TEA(transversely excited atmospheric pressure) CO2 laser taken by ICCD camera were analyzed. Quantitative data on the spatial distribution and the temporal development of the discharge were given. Second glow ...
Time-resolved photos of the discharge of TEA(transversely excited atmospheric pressure) CO2 laser taken by ICCD camera were analyzed. Quantitative data on the spatial distribution and the temporal development of the discharge were given. Second glow ...
2008,
20.
Abstract:
The motional characteristics, spreading way and obscuration effect of infrared smoke screen particle are analyzed in this paper. Feasibility of infrared smoke screen used in exoatmospheric space is evaluated. Ultra-micro powder crystalline flake grap...
The motional characteristics, spreading way and obscuration effect of infrared smoke screen particle are analyzed in this paper. Feasibility of infrared smoke screen used in exoatmospheric space is evaluated. Ultra-micro powder crystalline flake grap...
2008,
20.
Abstract:
Considering the beam divergence ,the angle dispersion and the fabrication errors of groove angle of the grating and using ray tracing method, the calculation model for the phase change of the laser beam obliquely incident on the grating has been buil...
Considering the beam divergence ,the angle dispersion and the fabrication errors of groove angle of the grating and using ray tracing method, the calculation model for the phase change of the laser beam obliquely incident on the grating has been buil...
2008,
20.
Abstract:
Collimator is one of the key tools to assemble, correct, adjust and test optical instrument, and it is an important part of the measuring instrument. In order to improve the measure accuracy, based on the particular aberration property of the diffrac...
Collimator is one of the key tools to assemble, correct, adjust and test optical instrument, and it is an important part of the measuring instrument. In order to improve the measure accuracy, based on the particular aberration property of the diffrac...
2008,
20.
Abstract:
SiO2 nanoparticles were prepared by sol-gel method with tetraethyl-ortho-silicate(TEOS) as silica source, cetyltrimethylanmmonium bromide(CTAB) as template, and polyethylene glycol(PEG) as disperser agent. The samples were characterized by TEM, SEM, ...
SiO2 nanoparticles were prepared by sol-gel method with tetraethyl-ortho-silicate(TEOS) as silica source, cetyltrimethylanmmonium bromide(CTAB) as template, and polyethylene glycol(PEG) as disperser agent. The samples were characterized by TEM, SEM, ...
2008,
20.
Abstract:
Runaway electron detection system composed of CdTe, BGO and NaI was used to measure the hard X-ray (HXR) emission in the energy range 0.3～15 MeV when the runaways hit the first wall. With electron cyclotron emission and neutron detect systems,the run...
Runaway electron detection system composed of CdTe, BGO and NaI was used to measure the hard X-ray (HXR) emission in the energy range 0.3～15 MeV when the runaways hit the first wall. With electron cyclotron emission and neutron detect systems,the run...
2008,
20.
Abstract:
The plasma dynamics was used in degenerated electron-positron plasma, and the transverse dispersion law in ultra-relativistic regime was investigated. The analytical solutions show that the dispersion curves are discontinuous with separate long wave ...
The plasma dynamics was used in degenerated electron-positron plasma, and the transverse dispersion law in ultra-relativistic regime was investigated. The analytical solutions show that the dispersion curves are discontinuous with separate long wave ...
2008,
20.
Abstract:
In this paper, DKDP crystals were grown from 85%-deuterated solution of different materials by traditional temperature-reduction method. Then some of the crystals were chosen to test laser damage threshold by the third harmonic generation of 1 064 nm...
In this paper, DKDP crystals were grown from 85%-deuterated solution of different materials by traditional temperature-reduction method. Then some of the crystals were chosen to test laser damage threshold by the third harmonic generation of 1 064 nm...
2008,
20.
Abstract:
The effects of chemical etching with a buffered HF solution on fused silica surface were studied by measuring the etched depth, via interferometer and step meter, and etched material mass under different etching time. The depth etching rate and mater...
The effects of chemical etching with a buffered HF solution on fused silica surface were studied by measuring the etched depth, via interferometer and step meter, and etched material mass under different etching time. The depth etching rate and mater...
2008,
20.
Abstract:
The PV, H2Pc, CuPc monolayer or PV/H２Pc, PV/CuPc bilayer films were prepared by vacuum deposition. The films were characterized by AFM, FTIR, UV/Vis and FL. Results showed that the surface of these films was very smooth, they presented strong adsorpt...
The PV, H2Pc, CuPc monolayer or PV/H２Pc, PV/CuPc bilayer films were prepared by vacuum deposition. The films were characterized by AFM, FTIR, UV/Vis and FL. Results showed that the surface of these films was very smooth, they presented strong adsorpt...
2008,
20.
Abstract:
Smooth diamond-like carbon films are fabricated by pulsed laser deposition at different substrate temperature. DLC films grown at room temperature exhibit excellent mechanical properties, their hardness and elastic modulus are 45 GPa and 290 GPa, and...
Smooth diamond-like carbon films are fabricated by pulsed laser deposition at different substrate temperature. DLC films grown at room temperature exhibit excellent mechanical properties, their hardness and elastic modulus are 45 GPa and 290 GPa, and...
2008,
20.
Abstract:
Switchyard is an important part of the beam propagation system, the stability of which has a direct effect on the beam’s propagation. A model of the switchyard mirror mount is built by the finite element analysis software, a digital seismograph is ad...
Switchyard is an important part of the beam propagation system, the stability of which has a direct effect on the beam’s propagation. A model of the switchyard mirror mount is built by the finite element analysis software, a digital seismograph is ad...
2008,
20.
Abstract:
The monodispersed silicon dioxide spherical particles were synthesized by improved Sol-gel methods, tetraethoxysilane as silicon material, ammonia as catalyst and ethanol as solvent. The sedimentation and organization of silica spheres with mean diam...
The monodispersed silicon dioxide spherical particles were synthesized by improved Sol-gel methods, tetraethoxysilane as silicon material, ammonia as catalyst and ethanol as solvent. The sedimentation and organization of silica spheres with mean diam...
2008,
20.
Abstract:
To resolve the transferring problem of neutron activated Cu sample on prototype, a “rabbit” system has been researched and designed. The problem of smoothly transfer, locating of the “rabbit”, lubricating and air-tight sealing between the pipe and “r...
To resolve the transferring problem of neutron activated Cu sample on prototype, a “rabbit” system has been researched and designed. The problem of smoothly transfer, locating of the “rabbit”, lubricating and air-tight sealing between the pipe and “r...
2008,
20.
Abstract:
Surface wave bandgap of mushroom-like electromagnetic bandgap(EBG) structure with finite units was analyzed by direct transmission method. Compared with surface wave dispersion diagram, surface wave bandgap is fast determined and analysis time obviou...
Surface wave bandgap of mushroom-like electromagnetic bandgap(EBG) structure with finite units was analyzed by direct transmission method. Compared with surface wave dispersion diagram, surface wave bandgap is fast determined and analysis time obviou...
2008,
20.
Abstract:
A high-efficiency L-MILO is designed based on advantageous mechanisms of both hard-tube MILO and tapered MILO by 2D particle-in-cell(PIC) electromagnetic code . The high-efficiency L-MILO has high efficiency and is easy to work up. The design is opti...
A high-efficiency L-MILO is designed based on advantageous mechanisms of both hard-tube MILO and tapered MILO by 2D particle-in-cell(PIC) electromagnetic code . The high-efficiency L-MILO has high efficiency and is easy to work up. The design is opti...
2008,
20.
Abstract:
The frequency, quality factor and gap impedance of outloaded resonant cavity have been calculated analytically by the equivalent circuit model, and the results agree well with those of electromagnetic simulation software. The analytical and simulate...
The frequency, quality factor and gap impedance of outloaded resonant cavity have been calculated analytically by the equivalent circuit model, and the results agree well with those of electromagnetic simulation software. The analytical and simulate...
2008,
20.
Abstract:
Based on the tangential boundary conditions, the propagation characteristics of the electromagnetic wave incident from a linear conventional medium(RHM) into a nonlinear left-handed medium(LHM) are derived in detail. The nonlinear Goos-Hnchen shift o...
Based on the tangential boundary conditions, the propagation characteristics of the electromagnetic wave incident from a linear conventional medium(RHM) into a nonlinear left-handed medium(LHM) are derived in detail. The nonlinear Goos-Hnchen shift o...
2008,
20.
Abstract:
The constitution, primary technique target and the transmission line structure of the subnanosecond EMP simulator are introduced in this paper. The transmission and spatial distribution of the electric-field were simulated numerically by Finite Diffe...
The constitution, primary technique target and the transmission line structure of the subnanosecond EMP simulator are introduced in this paper. The transmission and spatial distribution of the electric-field were simulated numerically by Finite Diffe...
2008,
20.
Abstract:
The modulation mechanism and RF extraction of an S-band relativistic klystron oscillator were studied via experiment. It is found that intense relativistic electron beams(IREBs) can generate intense current modulation when the IREBs drift through thr...
The modulation mechanism and RF extraction of an S-band relativistic klystron oscillator were studied via experiment. It is found that intense relativistic electron beams(IREBs) can generate intense current modulation when the IREBs drift through thr...
2008,
20.
Abstract:
Based on the nodal admittance method which is convenient to analyze the responses at terminals of multiconductor transmission lines excited by EM field, Mento Carlo method for the characterization of wiring-harness susceptibility to external interfer...
Based on the nodal admittance method which is convenient to analyze the responses at terminals of multiconductor transmission lines excited by EM field, Mento Carlo method for the characterization of wiring-harness susceptibility to external interfer...
2008,
20.
Abstract:
The ill-posedness of the inverse problem on determination of mode content in a multimode cylindrical waveguide using far field measurements is investigated in this paper. The radiation patterns of different mode radiated from a conical horn antenna f...
The ill-posedness of the inverse problem on determination of mode content in a multimode cylindrical waveguide using far field measurements is investigated in this paper. The radiation patterns of different mode radiated from a conical horn antenna f...
2008,
20.
Abstract:
In the development of a new L band klystron, in order to reduce the size, weight and power waste of magnetic focusing system, the size of output waveguide should be reduced. To solve this problem, a ridge waveguide was used in the output circuit. To ...
In the development of a new L band klystron, in order to reduce the size, weight and power waste of magnetic focusing system, the size of output waveguide should be reduced. To solve this problem, a ridge waveguide was used in the output circuit. To ...
2008,
20.
Abstract:
The calculation of the voltage distribution of pulse transformer’s taper winding with more than 4 000 turns is difficult, for the workload of calculating induction coefficient matrix is very heavy. In order to reduce the workload, the characteristics...
The calculation of the voltage distribution of pulse transformer’s taper winding with more than 4 000 turns is difficult, for the workload of calculating induction coefficient matrix is very heavy. In order to reduce the workload, the characteristics...
2008,
20.
Abstract:
Primary test stand(PTS) is an underway highcurrent accelerator for Z-pinch experiment in CAEP. In the paper a circuit model have been developed, in which all the PTS's transmission line sections from water transmission lines, to vacuum insulator sta...
Primary test stand(PTS) is an underway highcurrent accelerator for Z-pinch experiment in CAEP. In the paper a circuit model have been developed, in which all the PTS's transmission line sections from water transmission lines, to vacuum insulator sta...
2008,
20.
Abstract:
In this paper, a numerical model is proposed based on the investigation of the operational mechanism of reversely biased 4H-SiC Schottky diode as γ-ray detector. The detector characteristics of dark current, current response and sensitivity at differ...
In this paper, a numerical model is proposed based on the investigation of the operational mechanism of reversely biased 4H-SiC Schottky diode as γ-ray detector. The detector characteristics of dark current, current response and sensitivity at differ...
2008,
20.
Abstract:
The basic physical properties, the methods about the detection of character parameters, and the signal disposal of back streaming ions are analyzed. A program about laser interferometry is designed. The strongpoint and disadvantage of the program are...
The basic physical properties, the methods about the detection of character parameters, and the signal disposal of back streaming ions are analyzed. A program about laser interferometry is designed. The strongpoint and disadvantage of the program are...
2008,
20.
Abstract:
The structure of neutral beam injector on EAST is introduced. Neutral beam usually contains three kinds of high-energy ions, which do not lost charge in the neutralizer. Taking a deuterium beam with energy of 80 keV as a reference beam, the paper cal...
The structure of neutral beam injector on EAST is introduced. Neutral beam usually contains three kinds of high-energy ions, which do not lost charge in the neutralizer. Taking a deuterium beam with energy of 80 keV as a reference beam, the paper cal...
2008,
20.
Abstract:
The a/2〈111〉{110} edge dislocation in bcc Fe was created using periodic array of dislocations methods. Molecular dynamic calculations were performed to study the stability of He-vacancy clusters in the dislocation core in bcc Fe, and the results were...
The a/2〈111〉{110} edge dislocation in bcc Fe was created using periodic array of dislocations methods. Molecular dynamic calculations were performed to study the stability of He-vacancy clusters in the dislocation core in bcc Fe, and the results were...
2008,
20.
Abstract:
Based on the study of explosive emission, the dielectric enhancement electric-field emission model is brought forward, and the metal-dielectric complex cathode material is manufactured. Based on the investigation of surface-flash explosive emission, ...
Based on the study of explosive emission, the dielectric enhancement electric-field emission model is brought forward, and the metal-dielectric complex cathode material is manufactured. Based on the investigation of surface-flash explosive emission, ...
2008,
20.
Abstract:
The basic principle and characteristic parameter of water dielectric coaxial pulse delay-line are introduced, and the main reasons of pulse losses and pulse distortion in the process of pulse transmission are analyzed. A test equipment of water diele...
The basic principle and characteristic parameter of water dielectric coaxial pulse delay-line are introduced, and the main reasons of pulse losses and pulse distortion in the process of pulse transmission are analyzed. A test equipment of water diele...
2008,
20.
Abstract:
In order to characterize the undulators at Shanghai Synchroton Radiation Facility(SSRF), a flipping coil magnetic field integral measurement system for the measurement of both first and second magnetic field integral distributions and integrated mult...
In order to characterize the undulators at Shanghai Synchroton Radiation Facility(SSRF), a flipping coil magnetic field integral measurement system for the measurement of both first and second magnetic field integral distributions and integrated mult...
2008,
20.
Abstract:
For keeping up with the international development of pulsed power technology，some new techniques such as the water coaxial line parallel connection, the multi-gap multi-channel gas output switch and synchronized trigger system have been studied on “F...
For keeping up with the international development of pulsed power technology，some new techniques such as the water coaxial line parallel connection, the multi-gap multi-channel gas output switch and synchronized trigger system have been studied on “F...
