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Laser-induced ferroelectric domain engineering in LiNbO3 crystals using an amorphous silicon overlayer

Laser-induced ferroelectric domain engineering in LiNbO3 crystals using an amorphous silicon overlayer
Laser-induced ferroelectric domain engineering in LiNbO3 crystals using an amorphous silicon overlayer
We report laser-induced poling inhibition and direct poling in lithium niobate crystals (LiNbO3), covered with an amorphous silicon (a-Si) light-absorbing layer, using a visible (488 nm) continuous wave (c.w.) laser source. Our results show that the use of the a-Si overlayer produces deeper poling inhibited domains with minimum surface damage, as compared to previously reported UV laser writing experiments on uncoated crystals, thus increasing the applicability of this method in the production of ferroelectric domain engineered structures for nonlinear optical applications. The characteristics of the poling inhibited domains were investigated using differential etching and piezoresponse force microscopy.
2040-8986
Mailis, Sakellaris
233e0768-3f8d-430e-8fdf-92e6f4f6a0c4
Zisis, Grigorios
45a0bf08-5ab7-4d9b-9ad9-65ca7bf739a9
Martinez Jimenez, Gregorio
6f3b34dd-33de-42b0-a69d-56e724da239b
Franz, Yohann
edb6208c-9f65-42c4-965e-b6bc54945602
Healy, Noel
26eec85c-8d12-4f21-a67a-022f8dc2daab
Ben Masaud, Taha
931dee8c-d8ac-4519-96ff-fa0813b4da59
Chong, Harold
795aa67f-29e5-480f-b1bc-9bd5c0d558e1
Soergel, Elisabeth
f2f3cfe9-687e-48e9-9166-606087aba7f4
Peacock, Anna
685d924c-ef6b-401b-a0bd-acf1f8e758fc
Mailis, Sakellaris
233e0768-3f8d-430e-8fdf-92e6f4f6a0c4
Zisis, Grigorios
45a0bf08-5ab7-4d9b-9ad9-65ca7bf739a9
Martinez Jimenez, Gregorio
6f3b34dd-33de-42b0-a69d-56e724da239b
Franz, Yohann
edb6208c-9f65-42c4-965e-b6bc54945602
Healy, Noel
26eec85c-8d12-4f21-a67a-022f8dc2daab
Ben Masaud, Taha
931dee8c-d8ac-4519-96ff-fa0813b4da59
Chong, Harold
795aa67f-29e5-480f-b1bc-9bd5c0d558e1
Soergel, Elisabeth
f2f3cfe9-687e-48e9-9166-606087aba7f4
Peacock, Anna
685d924c-ef6b-401b-a0bd-acf1f8e758fc

Mailis, Sakellaris, Zisis, Grigorios, Martinez Jimenez, Gregorio, Franz, Yohann, Healy, Noel, Ben Masaud, Taha, Chong, Harold, Soergel, Elisabeth and Peacock, Anna (2017) Laser-induced ferroelectric domain engineering in LiNbO3 crystals using an amorphous silicon overlayer. Journal of Optics, 19 (8). (doi:10.1088/2040-8986/aa7726).

Record type: Article

Abstract

We report laser-induced poling inhibition and direct poling in lithium niobate crystals (LiNbO3), covered with an amorphous silicon (a-Si) light-absorbing layer, using a visible (488 nm) continuous wave (c.w.) laser source. Our results show that the use of the a-Si overlayer produces deeper poling inhibited domains with minimum surface damage, as compared to previously reported UV laser writing experiments on uncoated crystals, thus increasing the applicability of this method in the production of ferroelectric domain engineered structures for nonlinear optical applications. The characteristics of the poling inhibited domains were investigated using differential etching and piezoresponse force microscopy.

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Accepted/In Press date: 5 June 2017
e-pub ahead of print date: 21 July 2017
Published date: 21 July 2017

Identifiers

Local EPrints ID: 412653
URI: https://eprints.soton.ac.uk/id/eprint/412653
ISSN: 2040-8986
PURE UUID: 597a1f55-ad73-458b-869b-4724e023e240
ORCID for Sakellaris Mailis: ORCID iD orcid.org/0000-0001-8100-2670
ORCID for Harold Chong: ORCID iD orcid.org/0000-0002-7110-5761
ORCID for Anna Peacock: ORCID iD orcid.org/0000-0002-1940-7172

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Date deposited: 24 Jul 2017 16:33
Last modified: 12 Oct 2019 04:01

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Contributors

Author: Grigorios Zisis
Author: Gregorio Martinez Jimenez
Author: Yohann Franz
Author: Noel Healy
Author: Taha Ben Masaud
Author: Harold Chong ORCID iD
Author: Elisabeth Soergel
Author: Anna Peacock ORCID iD

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