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RSS2011 Vol. 23, No. 05
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2011,
23.
Abstract:
To identify the potential risks of spatial modulation of broad-band laser beams stacked by chirped pulses on the safety of optics, this paper numerically investigated the effect of temporal modulation on the generation and growth of spatial modulatio...
To identify the potential risks of spatial modulation of broad-band laser beams stacked by chirped pulses on the safety of optics, this paper numerically investigated the effect of temporal modulation on the generation and growth of spatial modulatio...
2011,
23.
Abstract:
The energy spectra and angle-distribution of the X-ray photons produced through 180°Thomson scattering were studied by Monte Carlo numerical simulation code CAIN. The laser intensity and electron parameters required for high quality X-ray source were...
The energy spectra and angle-distribution of the X-ray photons produced through 180°Thomson scattering were studied by Monte Carlo numerical simulation code CAIN. The laser intensity and electron parameters required for high quality X-ray source were...
2011,
23.
Abstract:
Two physical models of single-ring feedback phase-shift controlling chaos are discussed based on the method of chaos controlled by couplingfeedback phase-shift and its physical model. The coupler feeds the output back and the phase-shift controller ...
Two physical models of single-ring feedback phase-shift controlling chaos are discussed based on the method of chaos controlled by couplingfeedback phase-shift and its physical model. The coupler feeds the output back and the phase-shift controller ...
2011,
23.
Abstract:
The paper analyzes the damages of shock and vibration to precise mobile vehicle-mounted optical systems during transportation process and working condition, points out that structural deformation and vibration are the main factors influencing optical...
The paper analyzes the damages of shock and vibration to precise mobile vehicle-mounted optical systems during transportation process and working condition, points out that structural deformation and vibration are the main factors influencing optical...
2011,
23.
Abstract:
Based on the existing Venturi nozzle fluid supply system, an axisymmetric two-dimension computation model was presented. Flow field characteristics of Venturi nozzle under different back pressures were calculated using computational fluid dynamic met...
Based on the existing Venturi nozzle fluid supply system, an axisymmetric two-dimension computation model was presented. Flow field characteristics of Venturi nozzle under different back pressures were calculated using computational fluid dynamic met...
2011,
23.
Abstract:
The design of a 16 pass pump system for Yb:YAG thin-disk laser has been presented. The model of the system was built and simulated. Experiments based on the system using one disk cooled with water through micro channel were done. The disk was homemad...
The design of a 16 pass pump system for Yb:YAG thin-disk laser has been presented. The model of the system was built and simulated. Experiments based on the system using one disk cooled with water through micro channel were done. The disk was homemad...
2011,
23.
Abstract:
To provide references for the design of injectors in the combustion-driven continuous wave DF/HF chemical laser, five injectors of different structure were calibrated on flow rate by original criterion (mass-time method). Moreover, the results were e...
To provide references for the design of injectors in the combustion-driven continuous wave DF/HF chemical laser, five injectors of different structure were calibrated on flow rate by original criterion (mass-time method). Moreover, the results were e...
2011,
23.
Abstract:
In chemical lasers, the supersonic diffuser plays an important role in pressure system. This paper introduces some experimental results of line-divergence subsection diffuser for COIL. Preliminary study shows supersonic diffuser with right divergent ...
In chemical lasers, the supersonic diffuser plays an important role in pressure system. This paper introduces some experimental results of line-divergence subsection diffuser for COIL. Preliminary study shows supersonic diffuser with right divergent ...
2011,
23.
Abstract:
According to dynamic working characteristics of solid state heat capacity laser, the three dimensional(3D) temperature and thermal stress distribution of cylinder disk heat capacity laser varying with working time is simulated and analyzed using fini...
According to dynamic working characteristics of solid state heat capacity laser, the three dimensional(3D) temperature and thermal stress distribution of cylinder disk heat capacity laser varying with working time is simulated and analyzed using fini...
2011,
23.
Abstract:
A thresholding wavelet multiresolution wavefront reconstruction algorithm is proposed in view of low calculating efficiency and large stable state error of conventional wavefront reconstructors. The wavefront phase distortion is projected to wavelet ...
A thresholding wavelet multiresolution wavefront reconstruction algorithm is proposed in view of low calculating efficiency and large stable state error of conventional wavefront reconstructors. The wavefront phase distortion is projected to wavelet ...
2011,
23.
Abstract:
An orthogonal family of super Lorentz-Gauss(SLG) beam has been introduced to describe the highly divergent higher-order modes, e.g. the far-field distributions of the highly divergent higher-order mode generated by diode lasers. The fractional Fourie...
An orthogonal family of super Lorentz-Gauss(SLG) beam has been introduced to describe the highly divergent higher-order modes, e.g. the far-field distributions of the highly divergent higher-order mode generated by diode lasers. The fractional Fourie...
2011,
23.
Abstract:
The paper investigates the output characteristics of a chemical oxygen iodine laser(COIL) affected by nonideal resonator mirrors. Various parameters in long-time thermal deformation of silicon mirrors, such as absorption factor, supporting radius, an...
The paper investigates the output characteristics of a chemical oxygen iodine laser(COIL) affected by nonideal resonator mirrors. Various parameters in long-time thermal deformation of silicon mirrors, such as absorption factor, supporting radius, an...
2011,
23.
Abstract:
This paper proposes a model of non-Gaussian deformation in inter-satellite laser communication system, and then studies the effect of non-Gaussian deformation on pointing error based on the model in comparison with Gaussian model. Theoretical analyse...
This paper proposes a model of non-Gaussian deformation in inter-satellite laser communication system, and then studies the effect of non-Gaussian deformation on pointing error based on the model in comparison with Gaussian model. Theoretical analyse...
2011,
23.
Abstract:
This paper investigates the damage in optical components induced by an 880 nm high-power semiconductor CW laser. The optical components irradiated are high-reflectivity or anti-reflectivity components based on K9 glass, oxygen free copper and ZnSe cr...
This paper investigates the damage in optical components induced by an 880 nm high-power semiconductor CW laser. The optical components irradiated are high-reflectivity or anti-reflectivity components based on K9 glass, oxygen free copper and ZnSe cr...
2011,
23.
Abstract:
Based on the formation mechanism of targets infrared characteristic, this paper discusses a method to modulate ground targets’s infrared characteristic through artificial illuminator. The theoretical model of ground targets irradiated artificial illu...
Based on the formation mechanism of targets infrared characteristic, this paper discusses a method to modulate ground targets’s infrared characteristic through artificial illuminator. The theoretical model of ground targets irradiated artificial illu...
2011,
23.
Abstract:
The characteristics of spatial distribution of emission from electron oscillation are analyzed with a single electron model under femtosecond laser pulses of different intensity and polarizations. It shows that with the increase of laser intensity, f...
The characteristics of spatial distribution of emission from electron oscillation are analyzed with a single electron model under femtosecond laser pulses of different intensity and polarizations. It shows that with the increase of laser intensity, f...
2011,
23.
Abstract:
Numerical simulations have been conducted to study wave drag reduction over a cylindrical blunt body with repetitive laser energy deposition. The influences of laser repetition frequency, inflow Mach number and ignition location on drag reduction per...
Numerical simulations have been conducted to study wave drag reduction over a cylindrical blunt body with repetitive laser energy deposition. The influences of laser repetition frequency, inflow Mach number and ignition location on drag reduction per...
2011,
23.
Abstract:
The degree of paraxiality for Gaussian vortex beams is studied based on the definition of the degree of paraxiality for monochromatic light beams. By using the angular spectrum representation, the analytical expression for the degree of paraxiality f...
The degree of paraxiality for Gaussian vortex beams is studied based on the definition of the degree of paraxiality for monochromatic light beams. By using the angular spectrum representation, the analytical expression for the degree of paraxiality f...
2011,
23.
Abstract:
A discharge-pumped 351 nm XeF(B-X) excimer laser has been developed. For improving output efficiency and energy and achieving stationary discharge, the laser adopted a new switching power supply, compact Chang’s electrodes and spark preionization str...
A discharge-pumped 351 nm XeF(B-X) excimer laser has been developed. For improving output efficiency and energy and achieving stationary discharge, the laser adopted a new switching power supply, compact Chang’s electrodes and spark preionization str...
2011,
23.
Abstract:
The traditional four-step phase shifting algorithm has some limitations (such as phase shift error, low resolution and coherent noise) for processing of phase-masked interferograms, which affects the performance of the dynamic phase-masked interferom...
The traditional four-step phase shifting algorithm has some limitations (such as phase shift error, low resolution and coherent noise) for processing of phase-masked interferograms, which affects the performance of the dynamic phase-masked interferom...
2011,
23.
Abstract:
Using a self-made software named CatchGhost the ghost points’ position and energy in a coaxial optic systems were calculated accurately in a short time without omission．The software can carry out massive calculation in a short time, and pick out the ...
Using a self-made software named CatchGhost the ghost points’ position and energy in a coaxial optic systems were calculated accurately in a short time without omission．The software can carry out massive calculation in a short time, and pick out the ...
2011,
23.
Abstract:
Using computational fluid dynamic methods, this paper simulated nozzle array with high energy N2 as carrier gas. The results indicate that using high mach number N2 to eject low Mach number O2, the stagnation pressure at cavity exit can be enhanced. ...
Using computational fluid dynamic methods, this paper simulated nozzle array with high energy N2 as carrier gas. The results indicate that using high mach number N2 to eject low Mach number O2, the stagnation pressure at cavity exit can be enhanced. ...
2011,
23.
Abstract:
Due to the displacement between armature and stator axes of helical explosive magnetic flux compression generators(HMFCGs), the continuous contact between stator and expanding armature may be altered to skipping, which is a major factor affecting out...
Due to the displacement between armature and stator axes of helical explosive magnetic flux compression generators(HMFCGs), the continuous contact between stator and expanding armature may be altered to skipping, which is a major factor affecting out...
2011,
23.
Abstract:
A 10-stage 200 kV mini-Marx generator based on waveerection principle has been designed in coaxial structure. The capacitors, connecting switches and metallic enclosures, lead to the establishment of a fast pulse forming line. And fast risetime is a...
A 10-stage 200 kV mini-Marx generator based on waveerection principle has been designed in coaxial structure. The capacitors, connecting switches and metallic enclosures, lead to the establishment of a fast pulse forming line. And fast risetime is a...
2011,
23.
Abstract:
Gas switches can be used to produce high power electromagnetic pulses with very fast risetime in UWB radiation systems. Due to its promising prospect in repetitive rate application, the experimental study on the high pressure hydrogen switch is condu...
Gas switches can be used to produce high power electromagnetic pulses with very fast risetime in UWB radiation systems. Due to its promising prospect in repetitive rate application, the experimental study on the high pressure hydrogen switch is condu...
2011,
23.
Abstract:
Ultrahigh pulsed power with short rise time has been needed in many applications. For single linear transformer driver(LTD) module with sixty cavities connected in series, this paper has explored the effect of the cavity-triggering sequences on the o...
Ultrahigh pulsed power with short rise time has been needed in many applications. For single linear transformer driver(LTD) module with sixty cavities connected in series, this paper has explored the effect of the cavity-triggering sequences on the o...
2011,
23.
Abstract:
A type of glow discharge triggered pseudospark switch is designed, and the relationship among the delay and jitter of the switch and the glow discharge current, gas pressure, trigger voltage and anode voltage is studied. When the glow discharge curre...
A type of glow discharge triggered pseudospark switch is designed, and the relationship among the delay and jitter of the switch and the glow discharge current, gas pressure, trigger voltage and anode voltage is studied. When the glow discharge curre...
2011,
23.
Abstract:
The dielectric barrier discharge(DBD) in atmospheric air is generated with coaxial dielectric structure driven by a microsecond oscillatory pulse power supply. The discharge characteristics of DBD are studied by measurement of the voltage-current wav...
The dielectric barrier discharge(DBD) in atmospheric air is generated with coaxial dielectric structure driven by a microsecond oscillatory pulse power supply. The discharge characteristics of DBD are studied by measurement of the voltage-current wav...
2011,
23.
Abstract:
The plane wave expansion method is applied to simulate the band gap of a tunable twodimensional photonic crystal micro cavity based on controlling the refractive index of defect medium. KTiOPO4(KTP) crystal is introduced to the planar photonic cryst...
The plane wave expansion method is applied to simulate the band gap of a tunable twodimensional photonic crystal micro cavity based on controlling the refractive index of defect medium. KTiOPO4(KTP) crystal is introduced to the planar photonic cryst...
2011,
23.
Abstract:
The damage mechanism of 4H-SiC NMOS under high energy electron and proton irradiations was analyzed. The device’s physical model, electron irradiation model and proton irradiation model were established to simulate the drain current and irradiation e...
The damage mechanism of 4H-SiC NMOS under high energy electron and proton irradiations was analyzed. The device’s physical model, electron irradiation model and proton irradiation model were established to simulate the drain current and irradiation e...
2011,
23.
Abstract:
The electronic structure and energy state density of Ba substituting for K in KDP crystals was studied by first principles calculations. The point defect narrows down the energy gap to about 6.3 eV, which corresponds to a two-photon absorption of 390...
The electronic structure and energy state density of Ba substituting for K in KDP crystals was studied by first principles calculations. The point defect narrows down the energy gap to about 6.3 eV, which corresponds to a two-photon absorption of 390...
2011,
23.
Abstract:
With large deuterium clusters produced in a supersonic expansion of high pressure gases into vacuum through a cone nozzle, experiments have been carried out to investigate the evolvement of deuterium clusters in ultrashort ultraintense laser field ba...
With large deuterium clusters produced in a supersonic expansion of high pressure gases into vacuum through a cone nozzle, experiments have been carried out to investigate the evolvement of deuterium clusters in ultrashort ultraintense laser field ba...
2011,
23.
Abstract:
Laser wake field accelerator is hopeful to become a new minitype gamma source. This type of source has excellent performance characteristics such as high energy, high brightness, small focal spot and ultra shot pulse export. Bremsstrahlung spectra pr...
Laser wake field accelerator is hopeful to become a new minitype gamma source. This type of source has excellent performance characteristics such as high energy, high brightness, small focal spot and ultra shot pulse export. Bremsstrahlung spectra pr...
2011,
23.
Abstract:
Ion components, ion charge states and ion diffusion velocities of hydrogen-impregnated-electrode pulsed vacuum arc discharge plasmas were measured by time of flight (TOF) mass spectrometry. The results show that main components of the plasmas are H+,...
Ion components, ion charge states and ion diffusion velocities of hydrogen-impregnated-electrode pulsed vacuum arc discharge plasmas were measured by time of flight (TOF) mass spectrometry. The results show that main components of the plasmas are H+,...
2011,
23.
Abstract:
From the point of impedance matching between the probe and the grounding electrode plate, spectral response characteristics of plasmas generated by hypervelocity impact have been obtained through theoretical analysis of corresponding characteristic p...
From the point of impedance matching between the probe and the grounding electrode plate, spectral response characteristics of plasmas generated by hypervelocity impact have been obtained through theoretical analysis of corresponding characteristic p...
2011,
23.
Abstract:
Eddy currect effects should be considered in a accelerator with magnets ramping with a large repetition frequency. Field components like dipolar, quadrupolar and sextupolar ones and heating effects induced by eddy current effects will affect the chro...
Eddy currect effects should be considered in a accelerator with magnets ramping with a large repetition frequency. Field components like dipolar, quadrupolar and sextupolar ones and heating effects induced by eddy current effects will affect the chro...
2011,
23.
Abstract:
The thermal transport process of measuring probes within PET cyclotron is simulated based on finite difference time domain (FDTD) method. For both dynamic and static measurement modes, the highest surface temperature and back-end temperature for thre...
The thermal transport process of measuring probes within PET cyclotron is simulated based on finite difference time domain (FDTD) method. For both dynamic and static measurement modes, the highest surface temperature and back-end temperature for thre...
2011,
23.
Abstract:
According to the problem of deblur of flash radiographic image with low signal-to-noise ratio, a total variation (TV) regularization based image deblur-reconstruction algorithm is proposed. Considerring the blurring of the image system, the deblur-re...
According to the problem of deblur of flash radiographic image with low signal-to-noise ratio, a total variation (TV) regularization based image deblur-reconstruction algorithm is proposed. Considerring the blurring of the image system, the deblur-re...
2011,
23.
Abstract:
Novel magnetically insulated transmission line oscillator with 2D periodic slow wave structure is put forward, the symmetrical mode and dissymmetrical mode of which have the same working frequency. It can get microwave with pure frequency during mode...
Novel magnetically insulated transmission line oscillator with 2D periodic slow wave structure is put forward, the symmetrical mode and dissymmetrical mode of which have the same working frequency. It can get microwave with pure frequency during mode...
2011,
23.
Abstract:
The large-signal beam-wave interaction of rectangular helix traveling-wave-tube(TWT) is performed using 3D particle-in-cell simulation code MAGIC. The linear tapered resistance couplers were used to reduce reflections, which may avoid modeling the ac...
The large-signal beam-wave interaction of rectangular helix traveling-wave-tube(TWT) is performed using 3D particle-in-cell simulation code MAGIC. The linear tapered resistance couplers were used to reduce reflections, which may avoid modeling the ac...
2011,
23.
Abstract:
The partial least-square regression (PLSR) method was introduced and implemented in the prediction of microwave effects. The results show that the PLSR method has an accuracy almost consistent with the adaptive neuro-fuzzy inference system (ANFIS) mo...
The partial least-square regression (PLSR) method was introduced and implemented in the prediction of microwave effects. The results show that the PLSR method has an accuracy almost consistent with the adaptive neuro-fuzzy inference system (ANFIS) mo...
2011,
23.
Abstract:
The equivalent parameter models for series and parallel feed microstrip arrays are respectively built, according to the array’ structure. Then the limitation of the microstrip feed network’s power loss on the gain of microstrip antenna array is analy...
The equivalent parameter models for series and parallel feed microstrip arrays are respectively built, according to the array’ structure. Then the limitation of the microstrip feed network’s power loss on the gain of microstrip antenna array is analy...
2011,
23.
Abstract:
A time-domain method is presented to determine the radiation centers of ultra wideband(UWB) antennas. Without considering the frequency of input pulses, the E- and H-plane radiation centers can be derived by measuring the time delay of waveforms in f...
A time-domain method is presented to determine the radiation centers of ultra wideband(UWB) antennas. Without considering the frequency of input pulses, the E- and H-plane radiation centers can be derived by measuring the time delay of waveforms in f...
2011,
23.
Abstract:
In order to study the working mode selection mechanism of gyrotrons, this paper investigates mode selective properties of three kinds of gyrotron cavities, i.e. cylindrical open cavity, coaxial cavity with smooth insert and coaxial cavity with corrug...
In order to study the working mode selection mechanism of gyrotrons, this paper investigates mode selective properties of three kinds of gyrotron cavities, i.e. cylindrical open cavity, coaxial cavity with smooth insert and coaxial cavity with corrug...
2011,
23.
Abstract:
The influence of load mismatch on resonant frequency, gap impedance and external Q factor of klystron output circuit has been studied by using microwave equivalent circuit and 3D electromagnetic software. And the influence of load mismatch on the eff...
The influence of load mismatch on resonant frequency, gap impedance and external Q factor of klystron output circuit has been studied by using microwave equivalent circuit and 3D electromagnetic software. And the influence of load mismatch on the eff...
2011,
23.
Abstract:
Two kinds of graphite cathode (normal graphite cathode and copper-graphite cathode) are used in the electron microscope experiment and the repetitively long-pulse experiment separately. The experimental results show that microstructures of the two gr...
Two kinds of graphite cathode (normal graphite cathode and copper-graphite cathode) are used in the electron microscope experiment and the repetitively long-pulse experiment separately. The experimental results show that microstructures of the two gr...
2011,
23.
Abstract:
An approach for fast ignition of laser fusion is to use hot electrons for heating, and the temperature is an important parameter to characterize the hot electrons. The temperature of the hot electrons is diagnosed by experimentally measuring the inte...
An approach for fast ignition of laser fusion is to use hot electrons for heating, and the temperature is an important parameter to characterize the hot electrons. The temperature of the hot electrons is diagnosed by experimentally measuring the inte...
2011,
23.
Abstract:
A certain number of standard commercial fluorescent lamps were placed directly against one another around the inner surface of a metal cavity to produce a plasma layer there. The scattering of microwaves with a series of incident angles by the plasma...
A certain number of standard commercial fluorescent lamps were placed directly against one another around the inner surface of a metal cavity to produce a plasma layer there. The scattering of microwaves with a series of incident angles by the plasma...
2011,
23.
Abstract:
A dual-functional extreme ultraviolet(EUV) multilayer (ML) mirror was designed for high-reflectivity at 19.5 nm ( Fe Ⅻ line ) and low-reflectivity at 30.4 nm ( He Ⅱ line ). The design based on genetic algorithm (GA) utilized a stack composed of two p...
A dual-functional extreme ultraviolet(EUV) multilayer (ML) mirror was designed for high-reflectivity at 19.5 nm ( Fe Ⅻ line ) and low-reflectivity at 30.4 nm ( He Ⅱ line ). The design based on genetic algorithm (GA) utilized a stack composed of two p...
2011,
23.
Abstract:
Hollow polymer microspheres were prepared by alkali/cooling method at high temperature under high pressure using monodisperse styrene-methylacrylic acid copolymer particles. The effects of components of emulsifiers on the particles and of the pressur...
Hollow polymer microspheres were prepared by alkali/cooling method at high temperature under high pressure using monodisperse styrene-methylacrylic acid copolymer particles. The effects of components of emulsifiers on the particles and of the pressur...
2011,
23.
Abstract:
The optical spectra from the interaction between a 30 fs, 1×1019 W/cm2 laser pulse and foil targets on SILEX-Ⅰ are studied. Evident red shifts of the second and three-half harmonic emissions in the specular reflection direction are observed from a 3 ...
The optical spectra from the interaction between a 30 fs, 1×1019 W/cm2 laser pulse and foil targets on SILEX-Ⅰ are studied. Evident red shifts of the second and three-half harmonic emissions in the specular reflection direction are observed from a 3 ...
2011,
23.
Abstract:
Transparent BeH2 films have been prepared with vaporized beryllium atoms reacting with active hydrogen atoms. Scanning electron microscopy photographs show that the surfaces of BeH2 films have microvoids, and the infrared spectrum reveals an intense ...
Transparent BeH2 films have been prepared with vaporized beryllium atoms reacting with active hydrogen atoms. Scanning electron microscopy photographs show that the surfaces of BeH2 films have microvoids, and the infrared spectrum reveals an intense ...
2011,
23.
Abstract:
In order to manufacture reaction bonded silicon carbide(RB-SiC) mirrors of fine optical surface, 100 μm thick Si coatings were prepared by RF magnetron sputtering on RB-SiC substrates of 70 mm diameter and then polished. Tests with ZYGO surface profi...
In order to manufacture reaction bonded silicon carbide(RB-SiC) mirrors of fine optical surface, 100 μm thick Si coatings were prepared by RF magnetron sputtering on RB-SiC substrates of 70 mm diameter and then polished. Tests with ZYGO surface profi...
2011,
23.
Abstract:
Three kinds of anti-reflective SiO2 films, without impurities, with SiO2 particulate impurities and with CeO2 particulate impurities, were deposited on K9 glass by sol-gel dip-coating method. The influence of impurities on laser-induced damage of fil...
Three kinds of anti-reflective SiO2 films, without impurities, with SiO2 particulate impurities and with CeO2 particulate impurities, were deposited on K9 glass by sol-gel dip-coating method. The influence of impurities on laser-induced damage of fil...
2011,
23.
Abstract:
According to the ionization mechanism of transparent material under super high pressure, the direct diagnosis method of shock wave has been analyzed. With the Drude free electron model, the reflectivity difference of shock wave front under different ...
According to the ionization mechanism of transparent material under super high pressure, the direct diagnosis method of shock wave has been analyzed. With the Drude free electron model, the reflectivity difference of shock wave front under different ...
2011,
23.
Abstract:
The method for improving the uniformity of the image using multilayer films condenser is proposed. The optical structure of the condenser is designed, which concentrates 80% energy radiated by plasma to about 0.8 mm diameter range. Based on the syste...
The method for improving the uniformity of the image using multilayer films condenser is proposed. The optical structure of the condenser is designed, which concentrates 80% energy radiated by plasma to about 0.8 mm diameter range. Based on the syste...
2011,
23.
Abstract:
Cyanide-free gold plating introducing Na3Au(SO3)2 as the gold compound is employed to prepare gold films by electroless plating and pulsed electroplating. The gold films are coated on an anodic aluminum oxide template, which is then dissolved in nitr...
Cyanide-free gold plating introducing Na3Au(SO3)2 as the gold compound is employed to prepare gold films by electroless plating and pulsed electroplating. The gold films are coated on an anodic aluminum oxide template, which is then dissolved in nitr...
2011,
23.
Abstract:
Nanoporous copper with bicontinuous ligament structures can be synthesized by free corrosion dealloying in dilute HCl solution with arc melted Mn-Cu alloys. The effect of initial alloy composition on micromorphology of nanoporous Cu and residual Mn a...
Nanoporous copper with bicontinuous ligament structures can be synthesized by free corrosion dealloying in dilute HCl solution with arc melted Mn-Cu alloys. The effect of initial alloy composition on micromorphology of nanoporous Cu and residual Mn a...
2011,
23.
Abstract:
The response function of square-aperture piezoelectric film deformable mirror is calculated using Fourier series method. Then the optimization of some parameters such as correlation coefficient and beam aperture is done by numerical simulation. The r...
The response function of square-aperture piezoelectric film deformable mirror is calculated using Fourier series method. Then the optimization of some parameters such as correlation coefficient and beam aperture is done by numerical simulation. The r...
2011,
23.
Abstract:
We report a high-power fiber laser in all-fiber format. The system consists of 36 pump ports, both counter and forward pump configuration are employed. In the experiment, 1 008 W fiber laser is obtained when 24 pump ports are employed with a total pu...
We report a high-power fiber laser in all-fiber format. The system consists of 36 pump ports, both counter and forward pump configuration are employed. In the experiment, 1 008 W fiber laser is obtained when 24 pump ports are employed with a total pu...
2011,
23.
Abstract:
Based on published fracture experiments and 3D transient finite-element analyses, and taking the first principal stress as the criterion and the Griffith crack theory to determine the critical fracture stress, a Weibull statistical model is establish...
Based on published fracture experiments and 3D transient finite-element analyses, and taking the first principal stress as the criterion and the Griffith crack theory to determine the critical fracture stress, a Weibull statistical model is establish...
