Compact birefringent waveplates photo-induced in silica by femtosecond laser

Lancry, M; Desmarchelier, R; Cook, K; Poumellec, B; Canning, J

Compact birefringent waveplates photo-induced in silica by femtosecond laser

Lancry, M Desmarchelier, R Cook, K

Poumellec, B Canning, J

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Publication Type:: Journal Article
Citation:: Micromachines, 2014, 5 (4), pp. 825 - 838
Issue Date:: 2014-01-01

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Field	Value	Language
dc.contributor.author	Lancry, M	en_US
dc.contributor.author	Desmarchelier, R	en_US
dc.contributor.author	Cook, K https://orcid.org/0000-0001-6139-9586	en_US
dc.contributor.author	Poumellec, B	en_US
dc.contributor.author	Canning, J https://orcid.org/0000-0001-8281-7783	en_US
dc.date.issued	2014-01-01	en_US
dc.identifier.citation	Micromachines, 2014, 5 (4), pp. 825 - 838	en_US
dc.identifier.uri	http://hdl.handle.net/10453/118781
dc.description.abstract	© 2014 by the authors; licensee MDPI, Basel, Switzerland. Recently, we showed that femtosecond laser induced "nanogratings" consist of thin regions with a low refractive index (Δn = -0.15), due to the formation of nanoporous silica surrounded by regions with a positive index change. In this paper, we investigate a wide range of laser parameters to achieve very high retardance within a single layer; as much as 350 nm at λ = 546 nm but also to minimize the competing losses. We show that the total retardance depends on the number of layers present and can be accumulated in the direction of laser propagation to values higher than 1600 nm. This opens the door to using these nanostructures as refined building blocks for novel optical elements based on strong retardance.	en_US
dc.relation.ispartof	Micromachines	en_US
dc.relation.isbasedon	10.3390/mi5040825	en_US
dc.rights	info:eu-repo/semantics/openAccess
dc.title	Compact birefringent waveplates photo-induced in silica by femtosecond laser	en_US
dc.type	Journal Article
utslib.citation.volume	4	en_US
utslib.citation.volume	5	en_US
utslib.for	1007 Nanotechnology	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - GBDTC - Global Big Data Technologies
utslib.copyright.status	open_access	*
pubs.issue	4	en_US
pubs.publication-status	Published	en_US
pubs.volume	5	en_US

Abstract:

© 2014 by the authors; licensee MDPI, Basel, Switzerland. Recently, we showed that femtosecond laser induced "nanogratings" consist of thin regions with a low refractive index (Δn = -0.15), due to the formation of nanoporous silica surrounded by regions with a positive index change. In this paper, we investigate a wide range of laser parameters to achieve very high retardance within a single layer; as much as 350 nm at λ = 546 nm but also to minimize the competing losses. We show that the total retardance depends on the number of layers present and can be accumulated in the direction of laser propagation to values higher than 1600 nm. This opens the door to using these nanostructures as refined building blocks for novel optical elements based on strong retardance.

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http://hdl.handle.net/10453/118781