Efficient ultrafast laser writing with elliptical polarization
Efficient ultrafast laser writing with elliptical polarization
Photosensitivity in nature is commonly associated with stronger light absorption. It is also believed that artificial optical anisotropy to be the strongest when created by light with linear polarization. Contrary to intuition, ultrafast laser direct writing with elliptical polarization in silica glass, while nonlinear absorption is about 2.5 times weaker, results in form birefringence about twice that of linearly polarized light. Moreover, a larger concentration of anisotropic nanopores created by elliptically polarized light pulses is observed. The phenomenon is interpreted in terms of enhanced interaction of circularly polarized light with a network of randomly oriented bonds and hole polarons in silica glass, as well as efficient tunneling ionization produced by circular polarization. Applications to multiplexed optical data storage and birefringence patterning in silica glass are demonstrated
Lei, Yuhao
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Shayeganrad, Gholamreza
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Wang, Huijun
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Sakakura, Masaaki
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Yu, Yanhao
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Wang, Lei
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Kliukin, Dmitrii
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Skuja, Linards
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Svirko, Yuri
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Kazansky, Peter
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15 March 2023
Lei, Yuhao
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Shayeganrad, Gholamreza
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Wang, Huijun
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Sakakura, Masaaki
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Yu, Yanhao
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Wang, Lei
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Kliukin, Dmitrii
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Skuja, Linards
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Svirko, Yuri
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Kazansky, Peter
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Lei, Yuhao, Shayeganrad, Gholamreza, Wang, Huijun, Sakakura, Masaaki, Yu, Yanhao, Wang, Lei, Kliukin, Dmitrii, Skuja, Linards, Svirko, Yuri and Kazansky, Peter
(2023)
Efficient ultrafast laser writing with elliptical polarization.
Light: Science & Applications, 12 (1), [74].
(doi:10.1038/s41377-023-01098-2).
Abstract
Photosensitivity in nature is commonly associated with stronger light absorption. It is also believed that artificial optical anisotropy to be the strongest when created by light with linear polarization. Contrary to intuition, ultrafast laser direct writing with elliptical polarization in silica glass, while nonlinear absorption is about 2.5 times weaker, results in form birefringence about twice that of linearly polarized light. Moreover, a larger concentration of anisotropic nanopores created by elliptically polarized light pulses is observed. The phenomenon is interpreted in terms of enhanced interaction of circularly polarized light with a network of randomly oriented bonds and hole polarons in silica glass, as well as efficient tunneling ionization produced by circular polarization. Applications to multiplexed optical data storage and birefringence patterning in silica glass are demonstrated
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s41377-023-01098-2
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Accepted/In Press date: 6 February 2023
e-pub ahead of print date: 15 March 2023
Published date: 15 March 2023
Additional Information:
Funding Information:
This work was supported by Microsoft (Project Silica), European Research Council (ENIGMA, 789116), Academy of Finland (No. 343393) and Horizon 2020 RISE Project (CHARTIST, 101007896). We would like to thank Prof. Vladimir T. Tikhonchuk from the University of Bordeaux for useful discussions.
Publisher Copyright:
© 2023, The Author(s).
Identifiers
Local EPrints ID: 477159
URI: http://eprints.soton.ac.uk/id/eprint/477159
ISSN: 2095-5545
PURE UUID: 7770efa1-042b-485d-a558-8e71b899724b
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Date deposited: 30 May 2023 16:47
Last modified: 18 Jun 2024 01:57
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Contributors
Author:
Yuhao Lei
Author:
Gholamreza Shayeganrad
Author:
Huijun Wang
Author:
Masaaki Sakakura
Author:
Yanhao Yu
Author:
Lei Wang
Author:
Dmitrii Kliukin
Author:
Linards Skuja
Author:
Yuri Svirko
Author:
Peter Kazansky
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