Preparation and Space Irradiation Resistance of Composite Thin Film Diffractive Lens

Jun Fu; Jiajia Yin; Junming Shao; Bin Fan; Jiang Bian; Junfeng Du

doi:10.3788/LOP230453

Laser & Optoelectronics Progress, Volume. 60, Issue 13, 1316018(2023)

Preparation and Space Irradiation Resistance of Composite Thin Film Diffractive Lens

Jun Fu¹, Jiajia Yin^2、*, Junming Shao², Bin Fan², Jiang Bian², and Junfeng Du²

Author Affiliations

¹Beijing Institute of Tracking and Telecommunications Technology, Beijing 100094, China

²National Key Laboratory of Light Field Control Science and Technology, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, Sichuan, China

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Figures & Tables(7)

$Illustration of two steps Fresnel diffractive lens preparation process. (a) Ultraviolet exposure; (b) developing; (c) etching$

Fig. 1. Illustration of two steps Fresnel diffractive lens preparation process. (a) Ultraviolet exposure; (b) developing; (c) etching

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Fig. 2. Transmittance comparison of composite PI film and pure PI film (thickness of film is 25 μm)

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Fig. 3. Transmission wavefront test results of PI film lens (pure film, Φ75 mm, h=25 μm, ring fixation test)

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Fig. 4. Comparison of TG analysis and test results between composite PI film and pure PI film

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$Prepared two steps Fresnel diffractive lens. (a) Picture; (b) diffraction behavior of film diffractive lens to He-Ne laser; (c) illustration of Fresnel diffractive lens; (d) partial test results$

Fig. 5. Prepared two steps Fresnel diffractive lens. (a) Picture; (b) diffraction behavior of film diffractive lens to He-Ne laser; (c) illustration of Fresnel diffractive lens; (d) partial test results

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Table 1. Carbon residue rate results of composite PI film and pure PI film
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Table 1. Carbon residue rate results of composite PI film and pure PI film
Sample Carbon residue rate（750 ℃）/%
Pure PI film 63.5
Composite PI film 64.5

Table 2. Average transmittance of composite PI film before and after a certain amount of proton, electron, and space UV radiation
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Table 2. Average transmittance of composite PI film before and after a certain amount of proton, electron, and space UV radiation
Test item
T_{500-800 nm}
before irradiation
T_{500-800 nm}
after irradiation
Proton radiation 94.00 93.95
Electron radiation 94.00 94.00
Space UV radiation 94.00 93.97

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Jun Fu, Jiajia Yin, Junming Shao, Bin Fan, Jiang Bian, Junfeng Du. Preparation and Space Irradiation Resistance of Composite Thin Film Diffractive Lens[J]. Laser & Optoelectronics Progress, 2023, 60(13): 1316018

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