Large-volume focus control at 10 MHz refresh rate via fast line-scanning amplitude-encoded scattering-assisted holography
Abstract The capability of focus control has been central to optical technologies that require both high temporal and spatial resolutions. However, existing varifocal lens schemes are commonly limited to the response time on the microsecond timescale and share the fundamental trade-off between the r...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-04-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-024-47009-w |
| _version_ | 1797209210359906304 |
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| author | Atsushi Shibukawa Ryota Higuchi Gookho Song Hideharu Mikami Yuki Sudo Mooseok Jang |
| author_facet | Atsushi Shibukawa Ryota Higuchi Gookho Song Hideharu Mikami Yuki Sudo Mooseok Jang |
| author_sort | Atsushi Shibukawa |
| collection | DOAJ |
| description | Abstract The capability of focus control has been central to optical technologies that require both high temporal and spatial resolutions. However, existing varifocal lens schemes are commonly limited to the response time on the microsecond timescale and share the fundamental trade-off between the response time and the tuning power. Here, we propose an ultrafast holographic focusing method enabled by translating the speed of a fast 1D beam scanner into the speed of the complex wavefront modulation of a relatively slow 2D spatial light modulator. Using a pair of a digital micromirror device and a resonant scanner, we demonstrate an unprecedented refresh rate of focus control of 31 MHz, which is more than 1,000 times faster than the switching rate of a digital micromirror device. We also show that multiple micrometer-sized focal spots can be independently addressed in a range of over 1 MHz within a large volume of 5 mm × 5 mm × 5.5 mm, validating the superior spatiotemporal characteristics of the proposed technique – high temporal and spatial precision, high tuning power, and random accessibility in a three-dimensional space. The demonstrated scheme offers a new route towards three-dimensional light manipulation in the 100 MHz regime. |
| first_indexed | 2024-04-24T09:51:05Z |
| format | Article |
| id | doaj.art-6928e6c11c8f409aafb8e808c00aefa2 |
| institution | Directory Open Access Journal |
| issn | 2041-1723 |
| language | English |
| last_indexed | 2024-04-24T09:51:05Z |
| publishDate | 2024-04-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj.art-6928e6c11c8f409aafb8e808c00aefa22024-04-14T11:22:03ZengNature PortfolioNature Communications2041-17232024-04-0115111010.1038/s41467-024-47009-wLarge-volume focus control at 10 MHz refresh rate via fast line-scanning amplitude-encoded scattering-assisted holographyAtsushi Shibukawa0Ryota Higuchi1Gookho Song2Hideharu Mikami3Yuki Sudo4Mooseok Jang5Research Institute for Electronic Science, Hokkaido UniversityResearch Institute for Electronic Science, Hokkaido UniversityDepartment of Bio and Brain Engineering, Korea Advanced Institute of Science and TechnologyResearch Institute for Electronic Science, Hokkaido UniversityFaculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama UniversityDepartment of Bio and Brain Engineering, Korea Advanced Institute of Science and TechnologyAbstract The capability of focus control has been central to optical technologies that require both high temporal and spatial resolutions. However, existing varifocal lens schemes are commonly limited to the response time on the microsecond timescale and share the fundamental trade-off between the response time and the tuning power. Here, we propose an ultrafast holographic focusing method enabled by translating the speed of a fast 1D beam scanner into the speed of the complex wavefront modulation of a relatively slow 2D spatial light modulator. Using a pair of a digital micromirror device and a resonant scanner, we demonstrate an unprecedented refresh rate of focus control of 31 MHz, which is more than 1,000 times faster than the switching rate of a digital micromirror device. We also show that multiple micrometer-sized focal spots can be independently addressed in a range of over 1 MHz within a large volume of 5 mm × 5 mm × 5.5 mm, validating the superior spatiotemporal characteristics of the proposed technique – high temporal and spatial precision, high tuning power, and random accessibility in a three-dimensional space. The demonstrated scheme offers a new route towards three-dimensional light manipulation in the 100 MHz regime.https://doi.org/10.1038/s41467-024-47009-w |
| spellingShingle | Atsushi Shibukawa Ryota Higuchi Gookho Song Hideharu Mikami Yuki Sudo Mooseok Jang Large-volume focus control at 10 MHz refresh rate via fast line-scanning amplitude-encoded scattering-assisted holography Nature Communications |
| title | Large-volume focus control at 10 MHz refresh rate via fast line-scanning amplitude-encoded scattering-assisted holography |
| title_full | Large-volume focus control at 10 MHz refresh rate via fast line-scanning amplitude-encoded scattering-assisted holography |
| title_fullStr | Large-volume focus control at 10 MHz refresh rate via fast line-scanning amplitude-encoded scattering-assisted holography |
| title_full_unstemmed | Large-volume focus control at 10 MHz refresh rate via fast line-scanning amplitude-encoded scattering-assisted holography |
| title_short | Large-volume focus control at 10 MHz refresh rate via fast line-scanning amplitude-encoded scattering-assisted holography |
| title_sort | large volume focus control at 10 mhz refresh rate via fast line scanning amplitude encoded scattering assisted holography |
| url | https://doi.org/10.1038/s41467-024-47009-w |
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