Active aberration correction for the writing of three-dimensional optical memory devices.
We describe an active optical system that both measures and corrects the aberrations introduced when writing three-dimensional bit-oriented optical memory by a two-photon absorption process. The system uses a ferroelectric liquid-crystal spatial light modulator (FLCSLM) configured as an arbitrary wa...
| Autori principali: | , , , , , |
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| Natura: | Journal article |
| Lingua: | English |
| Pubblicazione: |
2002
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| _version_ | 1826286549440921600 |
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| author | Neil, M Juskaitis, R Booth, M Wilson, T Tanaka, T Kawata, S |
| author_facet | Neil, M Juskaitis, R Booth, M Wilson, T Tanaka, T Kawata, S |
| author_sort | Neil, M |
| collection | OXFORD |
| description | We describe an active optical system that both measures and corrects the aberrations introduced when writing three-dimensional bit-oriented optical memory by a two-photon absorption process. The system uses a ferroelectric liquid-crystal spatial light modulator (FLCSLM) configured as an arbitrary wave-front generator that is reconfigurable at speeds as great as 2.5 kHz. A method of aberration measurement by the FLCSLM wave-front generator is described. The same device is also used to correct the induced aberrations by preshaping the wave fronts with the conjugate phase aberration as well as to scan the focal spot in three dimensions. Experimental results show the correction of both on- and off-axis aberrations, allowing the writing of data at depths as great as 1 mm inside a LiNbO3 crystal. |
| first_indexed | 2024-03-07T01:45:25Z |
| format | Journal article |
| id | oxford-uuid:9840da18-1366-4c04-8ebd-b3db6c543d91 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T01:45:25Z |
| publishDate | 2002 |
| record_format | dspace |
| spelling | oxford-uuid:9840da18-1366-4c04-8ebd-b3db6c543d912022-03-27T00:05:42ZActive aberration correction for the writing of three-dimensional optical memory devices.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:9840da18-1366-4c04-8ebd-b3db6c543d91EnglishSymplectic Elements at Oxford2002Neil, MJuskaitis, RBooth, MWilson, TTanaka, TKawata, SWe describe an active optical system that both measures and corrects the aberrations introduced when writing three-dimensional bit-oriented optical memory by a two-photon absorption process. The system uses a ferroelectric liquid-crystal spatial light modulator (FLCSLM) configured as an arbitrary wave-front generator that is reconfigurable at speeds as great as 2.5 kHz. A method of aberration measurement by the FLCSLM wave-front generator is described. The same device is also used to correct the induced aberrations by preshaping the wave fronts with the conjugate phase aberration as well as to scan the focal spot in three dimensions. Experimental results show the correction of both on- and off-axis aberrations, allowing the writing of data at depths as great as 1 mm inside a LiNbO3 crystal. |
| spellingShingle | Neil, M Juskaitis, R Booth, M Wilson, T Tanaka, T Kawata, S Active aberration correction for the writing of three-dimensional optical memory devices. |
| title | Active aberration correction for the writing of three-dimensional optical memory devices. |
| title_full | Active aberration correction for the writing of three-dimensional optical memory devices. |
| title_fullStr | Active aberration correction for the writing of three-dimensional optical memory devices. |
| title_full_unstemmed | Active aberration correction for the writing of three-dimensional optical memory devices. |
| title_short | Active aberration correction for the writing of three-dimensional optical memory devices. |
| title_sort | active aberration correction for the writing of three dimensional optical memory devices |
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