Membrane–Fresnel Diffractive Lenses with High-Optical Quality and High-Thermal Stability
The membrane–Fresnel diffractive lens (M-FDL) has great potential in the field of high-resolution and lightweight imaging in orbit. However, the M-FDL with high-optical quality and high-thermal stability cannot be fabricated to a standard by the existing processing methods. In this paper, we propose...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-07-01
|
| Series: | Polymers |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4360/14/15/3056 |
| _version_ | 1797440924174778368 |
|---|---|
| author | Xin Liu Min Li Bincheng Li Bin Fan |
| author_facet | Xin Liu Min Li Bincheng Li Bin Fan |
| author_sort | Xin Liu |
| collection | DOAJ |
| description | The membrane–Fresnel diffractive lens (M-FDL) has great potential in the field of high-resolution and lightweight imaging in orbit. However, the M-FDL with high-optical quality and high-thermal stability cannot be fabricated to a standard by the existing processing methods. In this paper, we propose a method for fabricating an M-FDL composed of three steps: the improved repeated spin-coating of the polyimide (PI) membrane, the secondary mucosal method of silica-framed membrane mirror, and the high-precision fabrication of a multi-level microstructure on a flexible, ultrathin membrane substrate. The results show that the root mean square (RMS) of the wave-front error for M-FDL obtained by the above method is 1/28λ (F# = 8.7 at 632.8 nm) with an 80 mm clear aperture, the average diffraction efficiency is more than 70%, the silica-framed membrane mirror possesses approximately 40 times the overall thermal stability of the traditional metal-framed mirror, and the weight is less than 40 g. The measurement results indicate that the M-FDL has high-optical quality and high-thermal stability and can satisfy the imaging requirements. |
| first_indexed | 2024-03-09T12:15:28Z |
| format | Article |
| id | doaj.art-0b45e43573f74ce7a6c47250efe1ca5b |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-09T12:15:28Z |
| publishDate | 2022-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-0b45e43573f74ce7a6c47250efe1ca5b2023-11-30T22:46:40ZengMDPI AGPolymers2073-43602022-07-011415305610.3390/polym14153056Membrane–Fresnel Diffractive Lenses with High-Optical Quality and High-Thermal StabilityXin Liu0Min Li1Bincheng Li2Bin Fan3Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, ChinaInstitute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, ChinaSchool of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, ChinaInstitute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, ChinaThe membrane–Fresnel diffractive lens (M-FDL) has great potential in the field of high-resolution and lightweight imaging in orbit. However, the M-FDL with high-optical quality and high-thermal stability cannot be fabricated to a standard by the existing processing methods. In this paper, we propose a method for fabricating an M-FDL composed of three steps: the improved repeated spin-coating of the polyimide (PI) membrane, the secondary mucosal method of silica-framed membrane mirror, and the high-precision fabrication of a multi-level microstructure on a flexible, ultrathin membrane substrate. The results show that the root mean square (RMS) of the wave-front error for M-FDL obtained by the above method is 1/28λ (F# = 8.7 at 632.8 nm) with an 80 mm clear aperture, the average diffraction efficiency is more than 70%, the silica-framed membrane mirror possesses approximately 40 times the overall thermal stability of the traditional metal-framed mirror, and the weight is less than 40 g. The measurement results indicate that the M-FDL has high-optical quality and high-thermal stability and can satisfy the imaging requirements.https://www.mdpi.com/2073-4360/14/15/3056flexible membranepolyimidediffractive opticsmicrostructure fabricationwave-front errordiffraction efficiency |
| spellingShingle | Xin Liu Min Li Bincheng Li Bin Fan Membrane–Fresnel Diffractive Lenses with High-Optical Quality and High-Thermal Stability Polymers flexible membrane polyimide diffractive optics microstructure fabrication wave-front error diffraction efficiency |
| title | Membrane–Fresnel Diffractive Lenses with High-Optical Quality and High-Thermal Stability |
| title_full | Membrane–Fresnel Diffractive Lenses with High-Optical Quality and High-Thermal Stability |
| title_fullStr | Membrane–Fresnel Diffractive Lenses with High-Optical Quality and High-Thermal Stability |
| title_full_unstemmed | Membrane–Fresnel Diffractive Lenses with High-Optical Quality and High-Thermal Stability |
| title_short | Membrane–Fresnel Diffractive Lenses with High-Optical Quality and High-Thermal Stability |
| title_sort | membrane fresnel diffractive lenses with high optical quality and high thermal stability |
| topic | flexible membrane polyimide diffractive optics microstructure fabrication wave-front error diffraction efficiency |
| url | https://www.mdpi.com/2073-4360/14/15/3056 |
| work_keys_str_mv | AT xinliu membranefresneldiffractivelenseswithhighopticalqualityandhighthermalstability AT minli membranefresneldiffractivelenseswithhighopticalqualityandhighthermalstability AT binchengli membranefresneldiffractivelenseswithhighopticalqualityandhighthermalstability AT binfan membranefresneldiffractivelenseswithhighopticalqualityandhighthermalstability |