Photoinduced birefringence in azopolymers measured at 1550 nm
Azobenzenes are a class of compounds presenting photoisomerization capabilities that allow the writing and erasure of birefringence along a desired direction. This feature enables applications requiring polarization control, which although have been extensively investigated in the visible light spec...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2024-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2024/19/epjconf_eosam2024_10025.pdf |
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| _version_ | 1850198229213249536 |
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| author | Soares Beatriz Silva Susana Ribeiro Paulo Frazão Orlando |
| author_facet | Soares Beatriz Silva Susana Ribeiro Paulo Frazão Orlando |
| author_sort | Soares Beatriz |
| collection | DOAJ |
| description | Azobenzenes are a class of compounds presenting photoisomerization capabilities that allow the writing and erasure of birefringence along a desired direction. This feature enables applications requiring polarization control, which although have been extensively investigated in the visible light spectrum, poor emphasis has been paid to the infrared region. In this paper, a systematic characterization of induced birefringence creation and relaxation dynamics has been carried out in azopolymers thin films in the infrared telecommunications region of 1550 nm. This study covers both birefringence characterization in terms of wavelength and irradiance of birefringence writing beams. Preliminary results revealed remarkable maximum birefringence values as high as 0.0465 attained during the recording phase, that stabilized at 0.0424 during the relaxation phase, which is quite promising for many applications. |
| format | Article |
| id | doaj-art-6f72eaa0cc664703bb9f6b539154baae |
| institution | OA Journals |
| issn | 2100-014X |
| language | English |
| publishDate | 2024-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj-art-6f72eaa0cc664703bb9f6b539154baae2025-08-20T02:12:55ZengEDP SciencesEPJ Web of Conferences2100-014X2024-01-013091002510.1051/epjconf/202430910025epjconf_eosam2024_10025Photoinduced birefringence in azopolymers measured at 1550 nmSoares Beatriz0Silva Susana1Ribeiro Paulo2Frazão Orlando3INESC TECINESC TECFaculdade de Ciências e Tecnologia da Universidade Nova de LisboaINESC TECAzobenzenes are a class of compounds presenting photoisomerization capabilities that allow the writing and erasure of birefringence along a desired direction. This feature enables applications requiring polarization control, which although have been extensively investigated in the visible light spectrum, poor emphasis has been paid to the infrared region. In this paper, a systematic characterization of induced birefringence creation and relaxation dynamics has been carried out in azopolymers thin films in the infrared telecommunications region of 1550 nm. This study covers both birefringence characterization in terms of wavelength and irradiance of birefringence writing beams. Preliminary results revealed remarkable maximum birefringence values as high as 0.0465 attained during the recording phase, that stabilized at 0.0424 during the relaxation phase, which is quite promising for many applications.https://www.epj-conferences.org/articles/epjconf/pdf/2024/19/epjconf_eosam2024_10025.pdf |
| spellingShingle | Soares Beatriz Silva Susana Ribeiro Paulo Frazão Orlando Photoinduced birefringence in azopolymers measured at 1550 nm EPJ Web of Conferences |
| title | Photoinduced birefringence in azopolymers measured at 1550 nm |
| title_full | Photoinduced birefringence in azopolymers measured at 1550 nm |
| title_fullStr | Photoinduced birefringence in azopolymers measured at 1550 nm |
| title_full_unstemmed | Photoinduced birefringence in azopolymers measured at 1550 nm |
| title_short | Photoinduced birefringence in azopolymers measured at 1550 nm |
| title_sort | photoinduced birefringence in azopolymers measured at 1550 nm |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2024/19/epjconf_eosam2024_10025.pdf |
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