Photoluminescent Microbit Inscripion Inside Dielectric Crystals by Ultrashort Laser Pulses for Archival Applications
Inscription of embedded photoluminescent microbits inside micromechanically positioned bulk natural diamond, LiF and CaF<sub>2</sub> crystals was performed in sub-filamentation (geometrical focusing) regime by 525 nm 0.2 ps laser pulses focused by 0.65 NA micro-objective as a function of...
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-06-01
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| Series: | Micromachines |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2072-666X/14/7/1300 |
| _version_ | 1797588273945640960 |
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| author | Sergey Kudryashov Pavel Danilov Nikita Smirnov Evgeny Kuzmin Alexey Rupasov Roman Khmelnitsky George Krasin Irina Mushkarina Alexey Gorevoy |
| author_facet | Sergey Kudryashov Pavel Danilov Nikita Smirnov Evgeny Kuzmin Alexey Rupasov Roman Khmelnitsky George Krasin Irina Mushkarina Alexey Gorevoy |
| author_sort | Sergey Kudryashov |
| collection | DOAJ |
| description | Inscription of embedded photoluminescent microbits inside micromechanically positioned bulk natural diamond, LiF and CaF<sub>2</sub> crystals was performed in sub-filamentation (geometrical focusing) regime by 525 nm 0.2 ps laser pulses focused by 0.65 NA micro-objective as a function of pulse energy, exposure and inter-layer separation. The resulting microbits were visualized by 3D-scanning confocal Raman/photoluminescence microscopy as conglomerates of photo-induced quasi-molecular color centers and tested regarding their spatial resolution and thermal stability via high-temperature annealing. Minimal lateral and longitudinal microbit separations, enabling their robust optical read-out through micromechanical positioning, were measured in the most promising crystalline material, LiF, as 1.5 and 13 microns, respectively, to be improved regarding information storage capacity by more elaborate focusing systems. These findings pave a way to novel optomechanical memory storage platforms, utilizing ultrashort-pulse laser inscription of photoluminescent microbits as carriers of archival memory. |
| first_indexed | 2024-03-11T00:49:45Z |
| format | Article |
| id | doaj.art-550fb7124c734578b39eec0ac18737a0 |
| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-03-11T00:49:45Z |
| publishDate | 2023-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj.art-550fb7124c734578b39eec0ac18737a02023-11-18T20:31:29ZengMDPI AGMicromachines2072-666X2023-06-01147130010.3390/mi14071300Photoluminescent Microbit Inscripion Inside Dielectric Crystals by Ultrashort Laser Pulses for Archival ApplicationsSergey Kudryashov0Pavel Danilov1Nikita Smirnov2Evgeny Kuzmin3Alexey Rupasov4Roman Khmelnitsky5George Krasin6Irina Mushkarina7Alexey Gorevoy8Lebedev Physical Institute, 119991 Moscow, RussiaLebedev Physical Institute, 119991 Moscow, RussiaLebedev Physical Institute, 119991 Moscow, RussiaLebedev Physical Institute, 119991 Moscow, RussiaLebedev Physical Institute, 119991 Moscow, RussiaLebedev Physical Institute, 119991 Moscow, RussiaLebedev Physical Institute, 119991 Moscow, RussiaLebedev Physical Institute, 119991 Moscow, RussiaLebedev Physical Institute, 119991 Moscow, RussiaInscription of embedded photoluminescent microbits inside micromechanically positioned bulk natural diamond, LiF and CaF<sub>2</sub> crystals was performed in sub-filamentation (geometrical focusing) regime by 525 nm 0.2 ps laser pulses focused by 0.65 NA micro-objective as a function of pulse energy, exposure and inter-layer separation. The resulting microbits were visualized by 3D-scanning confocal Raman/photoluminescence microscopy as conglomerates of photo-induced quasi-molecular color centers and tested regarding their spatial resolution and thermal stability via high-temperature annealing. Minimal lateral and longitudinal microbit separations, enabling their robust optical read-out through micromechanical positioning, were measured in the most promising crystalline material, LiF, as 1.5 and 13 microns, respectively, to be improved regarding information storage capacity by more elaborate focusing systems. These findings pave a way to novel optomechanical memory storage platforms, utilizing ultrashort-pulse laser inscription of photoluminescent microbits as carriers of archival memory.https://www.mdpi.com/2072-666X/14/7/1300fluoridesdiamondultrashort-pulse laserdirect laser inscriptionphotoluminescent microbitsvacancy clusters |
| spellingShingle | Sergey Kudryashov Pavel Danilov Nikita Smirnov Evgeny Kuzmin Alexey Rupasov Roman Khmelnitsky George Krasin Irina Mushkarina Alexey Gorevoy Photoluminescent Microbit Inscripion Inside Dielectric Crystals by Ultrashort Laser Pulses for Archival Applications Micromachines fluorides diamond ultrashort-pulse laser direct laser inscription photoluminescent microbits vacancy clusters |
| title | Photoluminescent Microbit Inscripion Inside Dielectric Crystals by Ultrashort Laser Pulses for Archival Applications |
| title_full | Photoluminescent Microbit Inscripion Inside Dielectric Crystals by Ultrashort Laser Pulses for Archival Applications |
| title_fullStr | Photoluminescent Microbit Inscripion Inside Dielectric Crystals by Ultrashort Laser Pulses for Archival Applications |
| title_full_unstemmed | Photoluminescent Microbit Inscripion Inside Dielectric Crystals by Ultrashort Laser Pulses for Archival Applications |
| title_short | Photoluminescent Microbit Inscripion Inside Dielectric Crystals by Ultrashort Laser Pulses for Archival Applications |
| title_sort | photoluminescent microbit inscripion inside dielectric crystals by ultrashort laser pulses for archival applications |
| topic | fluorides diamond ultrashort-pulse laser direct laser inscription photoluminescent microbits vacancy clusters |
| url | https://www.mdpi.com/2072-666X/14/7/1300 |
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