Laser Fabrication and Comparative Study of Planoconcave and Planoconvex Microlenses on Fused Silica and Sapphire
We report on fabricating planoconcave lenses using a picosecond 355 nm wavelength laser and a CO<sub>2</sub> laser. We also report the fabrication of the planoconvex microlens array on fused silica by patterned micromachining using a picosecond laser and reshaping using a CO<sub>2&...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-05-01
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| Series: | Micromachines |
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| Online Access: | https://www.mdpi.com/2072-666X/16/6/608 |
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| author | Narayana R. Gottumukkala Caleb Barnes Mool C. Gupta |
| author_facet | Narayana R. Gottumukkala Caleb Barnes Mool C. Gupta |
| author_sort | Narayana R. Gottumukkala |
| collection | DOAJ |
| description | We report on fabricating planoconcave lenses using a picosecond 355 nm wavelength laser and a CO<sub>2</sub> laser. We also report the fabrication of the planoconvex microlens array on fused silica by patterned micromachining using a picosecond laser and reshaping using a CO<sub>2</sub> laser. We report results on the surface morphology, profile, roughness, optical transmission efficiency, and laser beam profile of transmitted light passing through the microlens. We demonstrate laser fabrication of planoconcave lenses on infrared transmitting material sapphire. Furthermore, we present the results of an experimental and simulation comparative performance study of planoconcave microlenses obtained by individual picosecond and CO<sub>2</sub> lasers. |
| format | Article |
| id | doaj-art-d0fbf4e788e844b3825c25167eb3bc9c |
| institution | Kabale University |
| issn | 2072-666X |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj-art-d0fbf4e788e844b3825c25167eb3bc9c2025-08-20T03:27:40ZengMDPI AGMicromachines2072-666X2025-05-0116660810.3390/mi16060608Laser Fabrication and Comparative Study of Planoconcave and Planoconvex Microlenses on Fused Silica and SapphireNarayana R. Gottumukkala0Caleb Barnes1Mool C. Gupta2Department of Electrical and Computer Engineering, University of Virginia, Charlottesville, VA 22903, USADepartment of Electrical and Computer Engineering, University of Virginia, Charlottesville, VA 22903, USADepartment of Electrical and Computer Engineering, University of Virginia, Charlottesville, VA 22903, USAWe report on fabricating planoconcave lenses using a picosecond 355 nm wavelength laser and a CO<sub>2</sub> laser. We also report the fabrication of the planoconvex microlens array on fused silica by patterned micromachining using a picosecond laser and reshaping using a CO<sub>2</sub> laser. We report results on the surface morphology, profile, roughness, optical transmission efficiency, and laser beam profile of transmitted light passing through the microlens. We demonstrate laser fabrication of planoconcave lenses on infrared transmitting material sapphire. Furthermore, we present the results of an experimental and simulation comparative performance study of planoconcave microlenses obtained by individual picosecond and CO<sub>2</sub> lasers.https://www.mdpi.com/2072-666X/16/6/608lasermicro fabricationlensplanar lens |
| spellingShingle | Narayana R. Gottumukkala Caleb Barnes Mool C. Gupta Laser Fabrication and Comparative Study of Planoconcave and Planoconvex Microlenses on Fused Silica and Sapphire Micromachines laser micro fabrication lens planar lens |
| title | Laser Fabrication and Comparative Study of Planoconcave and Planoconvex Microlenses on Fused Silica and Sapphire |
| title_full | Laser Fabrication and Comparative Study of Planoconcave and Planoconvex Microlenses on Fused Silica and Sapphire |
| title_fullStr | Laser Fabrication and Comparative Study of Planoconcave and Planoconvex Microlenses on Fused Silica and Sapphire |
| title_full_unstemmed | Laser Fabrication and Comparative Study of Planoconcave and Planoconvex Microlenses on Fused Silica and Sapphire |
| title_short | Laser Fabrication and Comparative Study of Planoconcave and Planoconvex Microlenses on Fused Silica and Sapphire |
| title_sort | laser fabrication and comparative study of planoconcave and planoconvex microlenses on fused silica and sapphire |
| topic | laser micro fabrication lens planar lens |
| url | https://www.mdpi.com/2072-666X/16/6/608 |
| work_keys_str_mv | AT narayanargottumukkala laserfabricationandcomparativestudyofplanoconcaveandplanoconvexmicrolensesonfusedsilicaandsapphire AT calebbarnes laserfabricationandcomparativestudyofplanoconcaveandplanoconvexmicrolensesonfusedsilicaandsapphire AT moolcgupta laserfabricationandcomparativestudyofplanoconcaveandplanoconvexmicrolensesonfusedsilicaandsapphire |