<trans-title xml:lang="en">Analysis of coherent combination characteristics of beam array via tight focusing</trans-title>

Zhe-Qiang Zhong; Jie Mu; Xiao Wang; Bin Zhang

doi:10.7498/aps.69.20200034

Acta Physica Sinica, Volume. 69, Issue 9, 094204-1(2020)

Analysis of coherent combination characteristics of beam array via tight focusing

Zhe-Qiang Zhong¹, Jie Mu^2,3,4, Xiao Wang^2,3,4, and Bin Zhang^1、*

Author Affiliations

¹College of Electronics and Information Engineering, Sichuan University, Chengdu 610065, China

²Laser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, China

³Science and Technology on Plasma Physics Laboratory, Mianyang 621900, China

⁴Collaborative Innovation Center of IFSA (CICIFSA), Shanghai Jiao Tong University, Shanghai 200240, China

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Figures & Tables(12)

Fig. 1. Light path of beam combination of beam array via tight focusing.

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Fig. 2. Beam configurations: (a) Rectangle; (b) hexagon.

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Fig. 3. Tight-focused spots of beam array with different polarization states under rectangle configuration.

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Fig. 4. Tight-focused spots of beam array with different polarization states under hexagon configuration.

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Fig. 5. PIB curves of the focal spots of beam array with different beam configurations and polarization states.

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Fig. 6. Focused intensity distribution of beam array with different polarization states under rectangle configuration.

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Fig. 7. Focused spots of beam array with different beam widths and γ under rectangle configuration.

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Fig. 8. PIB curves of the focal spots of beam array with different (a) beam widths and (b) γ under rectangle configuration.

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$PIB curves of the focal spots of beam array with numerical apertures and refractive indices under rectangle configuration.$

Fig. 9. PIB curves of the focal spots of beam array with numerical apertures and refractive indices under rectangle configuration.

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Table 1. Matrixes P₀(θ, φ)^[14] of different polarization states.

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Table 1. Matrixes P₀(θ, φ)^[14] of different polarization states.

偏振态	线偏振	左旋圆偏振	径向偏振	角向偏振
矩阵	$\left[ \begin{aligned} 1 \\ 0 \\ 0 \\ \end{aligned} \right]$	$\left[ \begin{aligned} { {1{\rm{i} } } }/{ {\sqrt 2 } } \\ {1}/{ {\sqrt 2 } } \\ 0\;\;\end{aligned} \;\right]$	$\left[ \begin{aligned} \cos \varphi \\ \sin\; \varphi \\ 0\;\;\;\end{aligned} \right]$	$\left[ \begin{aligned} - \sin \varphi \\ \cos \varphi \\ 0\;\;\;\;\end{aligned} \right]$

Table 2.
Combining efficiency of beam array with circular polarization under rectangle configuration.
矩形排布方式下, 圆偏振阵列光束的合成效率
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Table 2.
Combining efficiency of beam array with circular polarization under rectangle configuration.
矩形排布方式下, 圆偏振阵列光束的合成效率
束宽/ μm
80 100 120
γ = 2.2 63.5% 75.2% 88.4%
γ = 2.6 70.0% 79.4% 89.5%

Table 3.
Focal-spot width of beam array with numerical apertures and refractive indices under rectangle configuration.
不同数值孔径和介质下, 阵列光束焦斑尺寸
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Table 3.
Focal-spot width of beam array with numerical apertures and refractive indices under rectangle configuration.
不同数值孔径和介质下, 阵列光束焦斑尺寸
介质
空气水油
NA 0.75 0.80 0.85 0.90 0.95 0.95 0.95
阵列光束焦斑半径/μm 0.50 0.49 0.47 0.46 0.45 0.40 0.35

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Zhe-Qiang Zhong, Jie Mu, Xiao Wang, Bin Zhang. Analysis of coherent combination characteristics of beam array via tight focusing[J]. Acta Physica Sinica, 2020, 69(9): 094204-1

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Paper Information

Category:

Received: Jan. 6, 2020

Accepted: --

Published Online: Nov. 26, 2020

The Author Email:

DOI:10.7498/aps.69.20200034

Topics

Nuclear physics

Particles and fields

Particle and nuclear astrophysics and cosmology

Table 1. Matrixes P0(θ, φ)[14] of different polarization states.

Table 1. Matrixes P0(θ, φ)[14] of different polarization states.

Table 2. Combining efficiency of beam array with circular polarization under rectangle configuration.矩形排布方式下, 圆偏振阵列光束的合成效率

Table 2. Combining efficiency of beam array with circular polarization under rectangle configuration.矩形排布方式下, 圆偏振阵列光束的合成效率

Table 3. Focal-spot width of beam array with numerical apertures and refractive indices under rectangle configuration.不同数值孔径和介质下, 阵列光束焦斑尺寸

Table 3. Focal-spot width of beam array with numerical apertures and refractive indices under rectangle configuration.不同数值孔径和介质下, 阵列光束焦斑尺寸

Table 1. Matrixes P₀(θ, φ)^[14] of different polarization states.

Table 1. Matrixes P₀(θ, φ)^[14] of different polarization states.

Table 2.
Combining efficiency of beam array with circular polarization under rectangle configuration.
矩形排布方式下, 圆偏振阵列光束的合成效率

Table 2.
Combining efficiency of beam array with circular polarization under rectangle configuration.
矩形排布方式下, 圆偏振阵列光束的合成效率

Table 3.
Focal-spot width of beam array with numerical apertures and refractive indices under rectangle configuration.
不同数值孔径和介质下, 阵列光束焦斑尺寸

Table 3.
Focal-spot width of beam array with numerical apertures and refractive indices under rectangle configuration.
不同数值孔径和介质下, 阵列光束焦斑尺寸