Spatial–temporal radiation distribution in a CuBr vapor brightness amplifier in a real laser monitor scheme

Li, L.; Shiyanov, D. V.; Gubarev, Fedor A.

doi:10.1007/s00340-020-07511-7

Cited by 10 publications

(8 citation statements)

References 30 publications

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“…The exposition of the camera HSC2 was set to 40 µs. In this work, we used a laboratory-made copper bromide brightness amplifier previously applied in [13,15,19]. The gas-discharge tube of the brightness amplifier had an aperture of 3 cm and an active area length of 60 cm.…”

Section: Methodsmentioning

confidence: 99%

“…Operational conditions were optimized to provide a uniform beam profile of an amplified spontaneous emission (ASE) and a relatively low ASE average power of 24 mW at 510.6-nm wavelength (measured at the site of the object) and ~0 mW at 578.2-nm wavelength. We used this mode of operation of the active element in [15].…”

Section: Methodsmentioning

confidence: 99%

“…Symmetry 2022, 14, 656 2 of 12 and the possibility of a significant reduction in radiation power when implementing the concept of independent control of temperature parameters [15].…”

Section: Introductionmentioning

confidence: 99%

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Synchronized Two-Camera Laser Monitor for Studying Combusting Powder Systems

Gubarev

Mostovshchikov

2022

Symmetry

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In this paper, we offer a laboratory facility for in situ visualization of the combustion of ultrafine metal powders, which combines laser initiation and simultaneous high-speed recording of images of the flame of a burning material and a surface covered by a flame. Visualization of the surface through the flame is realized using a laser monitor—an optical projection system with brightness amplification. The proposed imaging system makes it possible to get more detailed information about the combustion process, in particular, to study the change in the surface through the flame in the area of laser initiation, and the propagation of heating and combustion waves over the sample, as well as to study the change in the surface reflectance during combustion. To study the area of laser initiation, it is proposed to simultaneously record images of a laser monitor with two cameras. The symmetry of the combustion wave front propagation and the combustion products’ formation during laser initiation of the nanoAl + Fe3O4 thermite mixture was demonstrated. The nature of propagation in the form of a ring is a consequence of the symmetry of the properties of the system under study, at the micro and macro levels.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Synchronized Two-Camera Laser Monitor for Studying Combusting Powder Systems

Gubarev

Mostovshchikov

2022

Symmetry

Self Cite

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“…To improve the transmission efficiency of the laser eavesdropping, the brightness amplifiers are studied. The radial distribution of radiation in copper-bromide brightness amplifiers in real schemes of laser eavesdropping is studied to optimize the beam profile [6] . To estimate the sensitivity of laser eavesdropping based on the analysis of digital images formed by a single pulse amplification, the sensitivity of the copper bromide brightness amplifier to laser eavesdropping is experimentally determined [7] .…”

Section: Introductionmentioning

confidence: 99%

The influence of the horizontal atmosphere on transmission efficiency of the laser eavesdropping

Zheng,

Xu,

Wang

et al. 2023

AOPC 2023: Novel Technologies and Instruments for Astronomical Imaging and Spectroscopy

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“…As one of the important parameters of laser monitoring quality, energy utilization rate is an important guide for laser eavesdropping system design. The energy utilization rate of laser eavesdropping system will be affected by the atmospheric turbulence 7,8 . For instance, atmospheric turbulence will cause laser spot breakage and jitter 9 .…”

Section: Introductionmentioning

confidence: 99%

Estimation method on energy utilization rate of laser eavesdropping system influenced by ambient temperature fluctuation

Liu,

Zheng,

Huang

et al. 2023

Advanced Lasers, High-Power Lasers, and Applications XIV

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When laser light propagates though the atmospheric turbulence, it would be affected by the fluctuation of atmospheric turbulence. Especially in harsh environments, atmospheric fluctuation will cause serious dispersion of the light spot, which has a serious impact on the energy utilization rate of laser eavesdropping system. This study focuses on the relationship between temperature fluctuation and energy utilization rate of laser eavesdropping system via the numerical simulation. Taking the temperature pulsation meter type QHTP-2 as the example, the theoretic derivation and numerical simulation are conducted. The result shows that the average energy utilization rate decreases rapidly with the increase of the standard deviation of temperature, and the 15% measurement uncertainty of the temperature pulsation meter will cause the energy utilization rate fluctuation between -6% and 8%. It provides us with a valuable criterion for laser eavesdropping system design.

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Spatial–temporal radiation distribution in a CuBr vapor brightness amplifier in a real laser monitor scheme

Cited by 10 publications

References 30 publications

Synchronized Two-Camera Laser Monitor for Studying Combusting Powder Systems

Synchronized Two-Camera Laser Monitor for Studying Combusting Powder Systems

The influence of the horizontal atmosphere on transmission efficiency of the laser eavesdropping

Estimation method on energy utilization rate of laser eavesdropping system influenced by ambient temperature fluctuation

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