Fabrication of lithium niobate fork grating by laser-writing-induced selective chemical etching
Abstract: We propose and experimentally demonstrate a laser-writing-induced selective chemical etching (LWISCE) technique for effective micro-fabrication of lithium niobate (LN) crystal. Laser writing of LN crystal produces negative domains and domain walls. Also, it causes local lattice defects, in which the etching rates are significantly increased in comparison to the original LN crystal. In experiment, we use the LWISCE technique to fabricate various fork gratings in an X-cut LN crystal for the generation of vortex beams. In comparison to etching an untreated X-cut LN crystal, the etching rates of the laser-writing-induced boundaries and the central laser-irradiated areas are enhanced by a factor of 26 and 16, respectively. The width and depth of fork grating structure can be precisely controlled by laser writing parameters. Our method provides an efficient mask-free micro-fabrication technique for LN crystal, which can be readily applied to other ferroelectric crystals such as lithium tantalate, potassium titanyl phosphate and barium calcium titanate.
- Standort
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Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
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Online-Ressource
- Sprache
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Englisch
- Erschienen in
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Fabrication of lithium niobate fork grating by laser-writing-induced selective chemical etching ; volume:11 ; number:4 ; year:2021 ; pages:829-834 ; extent:06
Nanophotonics ; 11, Heft 4 (2021), 829-834 (gesamt 06)
- Urheber
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Wang, Tianxin
Xu, Xiaoyi
Yang, Lei
Yan, Shuo
Hu, Xueli
Hu, Xiaopeng
Lu, Xiaomei
Xiao, Min
Zhang, Yong
- DOI
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10.1515/nanoph-2021-0446
- URN
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urn:nbn:de:101:1-2022120813204516757221
- Rechteinformation
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
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15.08.2025, 07:21 MESZ
Datenpartner
Deutsche Nationalbibliothek. Bei Fragen zum Objekt wenden Sie sich bitte an den Datenpartner.
Beteiligte
- Wang, Tianxin
- Xu, Xiaoyi
- Yang, Lei
- Yan, Shuo
- Hu, Xueli
- Hu, Xiaopeng
- Lu, Xiaomei
- Xiao, Min
- Zhang, Yong
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