Ultraviolet laser-induced poling inhibition produces bulk domains in MgO-doped lithium niobate crystals

Boes, Andreas; Steigerwald, H.; Yudistira, Didit; Sivan, V.; Wade, Scott A; Mailis, S.; Soergel, E.; Mitchell, Arnan

doi:10.1063/1.4895387

Cited by 10 publications

(10 citation statements)

References 22 publications

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“…The first one is relevant to experiments with BaTiO 3 and PbTiO 3 , 21 LiNbO 3 , 24,[63][64][65][66] and Pb 5 Ge 3 O 11 . 23,67 As for the transmission configuration, CDWs in (110) c and (111) c cuts of BaTiO 3 crystals (hereafter the subscript c indicates the pseudocubic reference frame) were observed both in polarized and non-polarized ( Fig. 2d) light.…”

Section: Cdw Observationsmentioning

confidence: 95%

Physics and applications of charged domain walls

Bednyakov

Sturman

Sluka³

et al. 2018

npj Comput Mater

164

158

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The charged domain wall is an ultrathin (typically nanosized) interface between two domains; it carries bound charge owing to a change of normal component of spontaneous polarization on crossing the wall. In contrast to hetero-interfaces between different materials, charged domain walls (CDWs) can be created, displaced, erased, and recreated again in the bulk of a material. Screening of the bound charge with free carriers is often necessary for stability of CDWs, which can result in giant two-dimensional conductivity along the wall. Usually in nominally insulating ferroelectrics, the concentration of free carriers at the walls can approach metallic values. Thus, CDWs can be viewed as ultrathin reconfigurable strongly conductive sheets embedded into the bulk of an insulating material. This feature is highly attractive for future nanoelectronics. The last decade was marked by a surge of research interest in CDWs. It resulted in numerous breakthroughs in controllable and reproducible fabrication of CDWs in different materials, in investigation of CDW properties and charge compensation mechanisms, in discovery of light-induced effects, and, finally, in detection of giant two-dimensional conductivity. The present review is aiming at a concise presentation of the main physical ideas behind CDWs and a brief overview of the most important theoretical and experimental findings in the field.

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Section: Cdw Observationsmentioning

confidence: 95%

Physics and applications of charged domain walls

Bednyakov

Sturman

Sluka³

et al. 2018

npj Comput Mater

164

158

View full text Add to dashboard Cite

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“…The surface patterning being very promising, our next goal is to investigate their depth and their minimum achievable size. Even if the domains were rather shallow, this domain engineering technique may be applicable for generating surface domains that can be used either as a template for bulk domain engineering [12] or for surface acoustic wave (SAW) applications in the GHz regime since the interaction depth of a SAW is in the order of a wavelength [13,14].…”

Section: Discussionmentioning

confidence: 99%

Sub-micron domain engineering in lithium niobate by laser light irradiation of patterned chromium

Boes

Sivan

Ren

et al. 2015

2015 Joint IEEE International Symposium on the Applications of Ferroelectric (ISAF), International Symposium on Integrated Func

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We report the generation of sub-micron domains in lithium niobate crystals by irradiating a patterned chromium layer with focused laser light. The generated surface domain pattern follows the Cr pattern, which was predefined by photolithography or electron beam lithography and a lift-off process. A 2D surface domain pattern with a period of 600 nm has been realized.Index Terms-lithium niobate, domain inversion, laser light processing.

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“…10,18 Therefore, it seems that in both cases we deal with the same underlying physical mechanism. We found, for instance, that domain inversion takes place only when the focus of the beam moves along the polar Z-axis from the ÀZ toward the þZ-surface.…”

mentioning

confidence: 99%

“…In the first approach, referred to as light-assisted poling, the crystal is irradiated in conjunction with or prior to application of an external, homogeneous electric field. 10,11 It is generally believed that selective illumination of the ferroelectric crystal by weakly absorbed light leads to a spatially modulated coercive field E c . This, in turn, results in spatially selective domain inversion, 12,13 thereby eliminating the need for structured electrodes, which are used in traditional electric poling.…”

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confidence: 99%

Ferroelectric domain engineering by focused infrared femtosecond pulses

Chen

Karpinski

Shvedov

et al. 2015

Applied Physics Letters

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We demonstrate infrared femtosecond laser-induced inversion of ferroelectric domains. This process can be realised solely by using tightly focused laser pulses without application of any electric field prior to, in conjunction with, or subsequent to the laser irradiation. As most ferroelectric crystals like LiNbO3, LiTaO3, and KTiOPO4 are transparent in the infrared, this optical poling method allows one to form ferroelectric domain patterns much deeper inside a ferroelectric crystal than by using ultraviolet light and hence can be used to fabricate practical devices. We also propose in situ diagnostics of the ferroelectric domain inversion process by monitoring the Čerenkov second harmonic signal, which is sensitive to the appearance of ferroelectric domain walls.

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Ultraviolet laser-induced poling inhibition produces bulk domains in MgO-doped lithium niobate crystals

Cited by 10 publications

References 22 publications

Physics and applications of charged domain walls

Physics and applications of charged domain walls

Sub-micron domain engineering in lithium niobate by laser light irradiation of patterned chromium

Ferroelectric domain engineering by focused infrared femtosecond pulses

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