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RSS2021 Vol. 33, No. 9
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2021,
: 1-2.
2021,
33: 091001.
doi: 10.11884/HPLPB202133.210099
Abstract:
A short wavelength of 780 nm semiconductor laser has been designed and fabricated, and the mode locking by external cavity feedback has been studied. The epitaxial layers were prepared by the metal organic chemical vapor deposition technology. GaAsP ...
A short wavelength of 780 nm semiconductor laser has been designed and fabricated, and the mode locking by external cavity feedback has been studied. The epitaxial layers were prepared by the metal organic chemical vapor deposition technology. GaAsP ...
2021,
33: 091002.
doi: 10.11884/HPLPB202133.210176
Abstract:
The high-power solid-state laser facility puts forward stringent requirements for the additional wavefront distortion and attitude stability of the large-aperture mirror. While ensuring attitude stability, the peak-to-valley (PV) value of additional ...
The high-power solid-state laser facility puts forward stringent requirements for the additional wavefront distortion and attitude stability of the large-aperture mirror. While ensuring attitude stability, the peak-to-valley (PV) value of additional ...
Simulation analysis of ultrasonic vibration for laser ablation of aluminum surface temperature field
2021,
33: 091003.
doi: 10.11884/HPLPB202133.210160
Abstract:
In view of the influence of ultrasonic vibration on the temperature field of laser ablation of aluminum surface, a three-dimensional numerical model was established, and the temperature field of ultrasonic vibration assisted laser ablation of metal a...
In view of the influence of ultrasonic vibration on the temperature field of laser ablation of aluminum surface, a three-dimensional numerical model was established, and the temperature field of ultrasonic vibration assisted laser ablation of metal a...
2021,
33: 091004.
doi: 10.11884/HPLPB202133.210207
Abstract:
We present a technical research experimentally demonstrating automated alignment on off-axis eight-pass laser amplifier. The mentioned technique aims to replace manual alignment method with automatic alignment system on the multipass complex laser am...
We present a technical research experimentally demonstrating automated alignment on off-axis eight-pass laser amplifier. The mentioned technique aims to replace manual alignment method with automatic alignment system on the multipass complex laser am...
Design of photonic crystal fibers with low loss broadband near-zero dispersion and high nonlinearity
2021,
33: 091005.
doi: 10.11884/HPLPB202133.210221
Abstract:
A photonic crystal fiber (PCF) structure with low loss, broadband near-zero dispersion and high nonlinearity is proposed. The diameter of the air hole in the cladding increases gradually from the core to the cladding. The dispersion, loss and nonline...
A photonic crystal fiber (PCF) structure with low loss, broadband near-zero dispersion and high nonlinearity is proposed. The diameter of the air hole in the cladding increases gradually from the core to the cladding. The dispersion, loss and nonline...
2021,
33: 092001.
doi: 10.11884/HPLPB202133.210192
Abstract:
A hermetically sealed X-ray framing tube with CsI photocathode is proposed to solve the problems of poor stability and low detection quantum efficiency brought by the open structure framing tube with Au photocathodes. Two microstrip photocathodes of ...
A hermetically sealed X-ray framing tube with CsI photocathode is proposed to solve the problems of poor stability and low detection quantum efficiency brought by the open structure framing tube with Au photocathodes. Two microstrip photocathodes of ...
2021,
33: 092002.
doi: 10.11884/HPLPB202133.210179
Abstract:
To measure accurately the thickness and its distribution of capsule, the white light reflection spectrum measurement technology is studied. The basic principle of white light reflection spectrum and the corresponding data processing methods, such as ...
To measure accurately the thickness and its distribution of capsule, the white light reflection spectrum measurement technology is studied. The basic principle of white light reflection spectrum and the corresponding data processing methods, such as ...
2021,
33: 093001.
doi: 10.11884/HPLPB202133.210061
Abstract:
The late effect of high-altitude electromagnetic pulse (E3) will cause dramatic changes in the Earth's magnetic field and form a ground induced electric field. The induced electric field is equivalent to forming a loop between the excitation source a...
The late effect of high-altitude electromagnetic pulse (E3) will cause dramatic changes in the Earth's magnetic field and form a ground induced electric field. The induced electric field is equivalent to forming a loop between the excitation source a...
2021,
33: 093002.
doi: 10.11884/HPLPB202133.210129
Abstract:
To realize quick design of the gyro-klystron amplifiers, a kind of numerical simulation method based on the single mode self-consistent nonlinear theory of gyrotrons was investigated. The single mode theory can’t be used to match the disrupt boundary...
To realize quick design of the gyro-klystron amplifiers, a kind of numerical simulation method based on the single mode self-consistent nonlinear theory of gyrotrons was investigated. The single mode theory can’t be used to match the disrupt boundary...
2021,
33: 093003.
doi: 10.11884/HPLPB202133.210186
Abstract:
The large path loss limits the transmission distance of terahertz wireless communication in the atmosphere. To realize long-range transmission of terahertz waves between the ground and the satellite, the first and key step is to find low attenuation ...
The large path loss limits the transmission distance of terahertz wireless communication in the atmosphere. To realize long-range transmission of terahertz waves between the ground and the satellite, the first and key step is to find low attenuation ...
2021,
33: 093004.
doi: 10.11884/HPLPB202133.210121
Abstract:
The commutation phenomena produced by cathode outgassing ionization is a possible factor to limit work performance of magnetically insulated transmission line oscillator (MILO), and also is the main obstacle to limit its repeat frequency. In this pap...
The commutation phenomena produced by cathode outgassing ionization is a possible factor to limit work performance of magnetically insulated transmission line oscillator (MILO), and also is the main obstacle to limit its repeat frequency. In this pap...
2021,
33: 093005.
doi: 10.11884/HPLPB202133.210155
Abstract:
To improve the anti-HEMP ability of very high frequency wireless communication systems, based on the vulnerability analysis results in the early stage, the design principle and indicators of the combination of transient discharge and steady-state fil...
To improve the anti-HEMP ability of very high frequency wireless communication systems, based on the vulnerability analysis results in the early stage, the design principle and indicators of the combination of transient discharge and steady-state fil...
2021,
33: 093006.
doi: 10.11884/HPLPB202133.210187
Abstract:
It is known that the ion channel can limit the radial expansion of the electron beam during long-range propagation in the plasma environment. Previous research typically concentrated on the interaction between the beam and plasma, but research on the...
It is known that the ion channel can limit the radial expansion of the electron beam during long-range propagation in the plasma environment. Previous research typically concentrated on the interaction between the beam and plasma, but research on the...
2021,
33: 093007.
doi: 10.11884/HPLPB202133.210205
Abstract:
Terahertz gyrotron can achieve high output power and has a certain frequency tuning range, thus it is an ideal high power terahertz radiation source for NMR spectroscopy system. A 263 GHz, TE5,2 fundamental harmonic frequency continuously tunable gyr...
Terahertz gyrotron can achieve high output power and has a certain frequency tuning range, thus it is an ideal high power terahertz radiation source for NMR spectroscopy system. A 263 GHz, TE5,2 fundamental harmonic frequency continuously tunable gyr...
2021,
33: 094001.
doi: 10.11884/HPLPB202133.210199
Abstract:
Rapid growth of machine learning techniques has arisen over last decades, which results in wide applications of machine learning for solving various complex problems in science and engineering. In the last decade, machine learning and big data techni...
2021,
33: 094002.
doi: 10.11884/HPLPB202133.210091
Abstract:
To meet the requirements of Hefei Advanced Light Facility (HALF) for high quality injection beam, a photocathode RF gun is developed as the electron source of the injector in the R&D project. To obtaining an electron beam with high qualities, it ...
To meet the requirements of Hefei Advanced Light Facility (HALF) for high quality injection beam, a photocathode RF gun is developed as the electron source of the injector in the R&D project. To obtaining an electron beam with high qualities, it ...
2021,
33: 094003.
doi: 10.11884/HPLPB202133.210244
Abstract:
Electron source generates electron bunch and dominates the electron beam quality for an accelerator. We put forward a novel mechanism of electron source in this paper. A great amount of hot electrons with several hundred keV can be generated during t...
Electron source generates electron bunch and dominates the electron beam quality for an accelerator. We put forward a novel mechanism of electron source in this paper. A great amount of hot electrons with several hundred keV can be generated during t...
2021,
33: 094004.
doi: 10.11884/HPLPB202133.210330
Abstract:
The short-pulse neutron source based on ultra-short and ultra-intense laser is an ideal neutron source for ultra-fast neutron detection. For many applications of the novel laser neutron source, the neutron yield now becomes a major limitation. It is ...
The short-pulse neutron source based on ultra-short and ultra-intense laser is an ideal neutron source for ultra-fast neutron detection. For many applications of the novel laser neutron source, the neutron yield now becomes a major limitation. It is ...
2021,
33: 094005.
doi: 10.11884/HPLPB202133.210087
Abstract:
The control system of Insertion Device (ID) for High Energy Photon Source (HEPS) is mainly responsible for the opening and closing motion control of the magnetic gap of ID. The safe movement of the ID control system is essential for the safety of ID,...
The control system of Insertion Device (ID) for High Energy Photon Source (HEPS) is mainly responsible for the opening and closing motion control of the magnetic gap of ID. The safe movement of the ID control system is essential for the safety of ID,...
2021,
33: 094006.
doi: 10.11884/HPLPB202133.210202
Abstract:
The accuracy of beam position measurement is affected by the gain inconsistency of the four channels of the digital BPM. Based on the existing hardware and the requirement of beam position monitor (BPM) measurement accuracy, a design for automatic ca...
The accuracy of beam position measurement is affected by the gain inconsistency of the four channels of the digital BPM. Based on the existing hardware and the requirement of beam position monitor (BPM) measurement accuracy, a design for automatic ca...
2021,
33: 095001.
doi: 10.11884/HPLPB202133.210195
Abstract:
The design process and experimental results of a transfer capacitor used in a large vertical polarization bounded wave simulator are introduced. The capacitor adopts modular design based on capacitor elements and components, and forms a cone shape. T...
The design process and experimental results of a transfer capacitor used in a large vertical polarization bounded wave simulator are introduced. The capacitor adopts modular design based on capacitor elements and components, and forms a cone shape. T...
2021,
33: 095002.
doi: 10.11884/HPLPB202133.210220
Abstract:
This paper introduces The fractional ratio pulse modulator for S-band 50 MW klystron, which has the characteristics of pulse transformer ratio of 1∶300, primary voltage of 1.25 kV and output peak power of 113 MW. The selection of five sub cores, the ...
This paper introduces The fractional ratio pulse modulator for S-band 50 MW klystron, which has the characteristics of pulse transformer ratio of 1∶300, primary voltage of 1.25 kV and output peak power of 113 MW. The selection of five sub cores, the ...
2021,
33: 096001.
doi: 10.11884/HPLPB202133.210088
Abstract:
The superconducting magnet power supply for the Comprehensive Research Facility for Fusion Technology (CRAFT) has the abilities of large current steady-state operation, high power pulse operation and transient fault suppression, which is closely rela...
The superconducting magnet power supply for the Comprehensive Research Facility for Fusion Technology (CRAFT) has the abilities of large current steady-state operation, high power pulse operation and transient fault suppression, which is closely rela...
2021,
33: 099001.
doi: 10.11884/HPLPB202133.210045
Abstract:
There are many factors that affect the measurement accuracy of binocular vision system. Currently, the influence of system structure parameters on the measurement accuracy mainly includes the angle between optical axis and baseline, baseline distance...
There are many factors that affect the measurement accuracy of binocular vision system. Currently, the influence of system structure parameters on the measurement accuracy mainly includes the angle between optical axis and baseline, baseline distance...
