Ultraviolet Narrow Band Antireflection of Fe Nanoparticles Embedded in MgO Films

Jinjing Fang; Linhong Cao; Jian Yu; Jin Wang; Yajun Fu; Wanting Lan; Jingsong Zhang; Weidong Wu

doi:10.3788/LOP213239

Laser & Optoelectronics Progress, Volume. 60, Issue 5, 0531001(2023)

Ultraviolet Narrow Band Antireflection of Fe Nanoparticles Embedded in MgO Films

Jinjing Fang^1,3,4, Linhong Cao^1,3,4、**, Jian Yu^5、***, Jin Wang^1,3,4, Yajun Fu^1,3,4, Wanting Lan^1,3,4, Jingsong Zhang^1,3,4, and Weidong Wu^2,3,4、*

Author Affiliations

¹School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621000, Sichuan, China

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

³Sichuan Civil-Military Integration Institute, Mianyang 621000, Sichuan, China

⁴Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology, Mianyang 621000, Sichuan, China

⁵Research Center of Advanced Material Testing Technology, Shenzhen Technology University, Shenzhen 518118, Guangdong, China

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Figures & Tables(10)

Fig. 1. Preparation process of Fe/MgO nanocomposite film

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Fig. 2. GIXRD spectrum of Fe/MgO nanocomposite films

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Fig. 3. AFM 3D images of Fe/MgO nanocomposite films. (a) MgO substrate; (b) 1# sample; (c) 3# sample; (d) 4# sample

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Fig. 4. TEM images of Fe/MgO nanocomposite films. (a) TEM morphology of 1# sample; (b) particle size statistical histogram of Fe nanoparticles; (c) spacing distribution histogram of Fe nanoparticles; (d) HRTEM pattern of 1# sample

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Fig. 5. XPS spectra of 1# sample. (a) Survey spectrum; (b) Mg 2p; (c) O 1s; (d) Fe 2p

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$Elliptical polarization spectrograms of Fe/MgO nanocomposite films. (a) Refractive index; (b) dispersion sensitivity of refractive index$

Fig. 6. Elliptical polarization spectrograms of Fe/MgO nanocomposite films. (a) Refractive index; (b) dispersion sensitivity of refractive index

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Fig. 7. UV-vis spectra of Fe/MgO nanocomposite films. (a) Transmission spectra; (b) absorption spectra; (c) absorption peaks of MgO substrate; (d)-(h) absorption peaks of 1#-5# samples

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Table 1. Experimental parameters for the growth of Fe/MgO nanocomposite films

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Table 1. Experimental parameters for the growth of Fe/MgO nanocomposite films

Experimental condition	Experimental parameter
Background vacuum /Pa	~2×10^-6
Working vacuum /Pa	~1×10^-5
Target	Fe（purity greater than 99.9%）；MgO（purity greater than 99.99%）
Substrate	MgO（100）single crystal
Distance between target and substrate /cm	5
Laser	Wavelength is 248 nm；frequency is 2 Hz；energy for Fe target and MgO target is 1 J/cm² and 1.25 J/cm² respectively
Annealing condition	550 ℃；4 h
Oxygen treatment condition	1 Pa；30 min

Table 2. Number of laser pulses corresponding to Fe/MgO nanocomposite films with different numbers
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Table 2. Number of laser pulses corresponding to Fe/MgO nanocomposite films with different numbers
Sample No. Number of laser pulses
1# 100
2# 200
3# 300
4# 500
5# 600

Table 3. Absorption peaks of Fe/MgO nanocomposite film
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Table 3. Absorption peaks of Fe/MgO nanocomposite film
Sample Peak 1 Peak 2 Peak 3 Peak 4 Peak 5
MgO 5.13 6.36
1# 1.78 3.34 4.22 5.21 6.54
2# 2.19 3.37 4.14 5.40 6.73
3# 1.73 3.15 4.18 5.39
4# 1.81 3.10 4.13 5.16 6.42
5# 1.4 2.8 4.1 5.4

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Jinjing Fang, Linhong Cao, Jian Yu, Jin Wang, Yajun Fu, Wanting Lan, Jingsong Zhang, Weidong Wu. Ultraviolet Narrow Band Antireflection of Fe Nanoparticles Embedded in MgO Films[J]. Laser & Optoelectronics Progress, 2023, 60(5): 0531001

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