Optical imaging of ferroelectric domains in periodically poled lithium niobate using ferroelectric liquid crystals

• Autorzy: Meier Patrick A. , Keuker-Baumann Susanne , Röder Thorsten , Herrmann Harald , Ricken Raimund , Silberhorn Christine , Kitzerow Heinz-S.

Identyfikatory

DOI

10.24425/opelre.2024.150611

• Języki publikacji: EN

Abstrakty

EN

Ferroelectric liquid crystals exhibiting a chiral smectic C* phase are deposited on z-cut periodically poled lithium niobate substrates and investigated by polarized optical microscopy. While the pure substrates placed between crossed polarizers and observed in transmission appear dark, uniformly aligned liquid crystal films deposited on these substrates show alternating domains with varying brightness. This effect can be attributed to the well-known coupling between the direction of the spontaneous polarization and the optical axis in the birefringent ferroelectric smectic C* phase. Quantitative measurements of the tilt angle between the local optical axis and the smectic layer normal confirm antiparallel orientations of spontaneous polarization of the liquid crystal from domain to domain, as expected by the periodic poling of the lithium niobate substrate. This effect provides a valuable non-destructive method of optical inspection of the quality of periodically poled ferroelectric substrates, which plays an important role in achieving quasi-phase-matching in non-linear optical applications.

Słowa kluczowe

EN

polarization microscopy; imaging using birefringence; ferroelectric liquid crystal; periodically poled lithium niobate; quasi-phase-matching

• Wydawca: Stowarzyszenie Elektryków Polskich ; Polska Akademia Nauk ; Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
• Czasopismo: Opto-Electronics Review
• Rocznik: 2024
• Tom: Vol. 32, No. 3
• Strony: art. no. e150611
• Opis fizyczny: Bibliogr. 23 poz., rys., tab., wykr.

Twórcy

autor

Meier Patrick A.

• Faculty of Science and Center for Optoelectronics and Photonics Paderborn (CeOPP), Paderborn University, Warburger Straße 100, 33098 Paderborn, Germany

autor

Keuker-Baumann Susanne

• Faculty of Science and Center for Optoelectronics and Photonics Paderborn (CeOPP), Paderborn University, Warburger Straße 100, 33098 Paderborn, Germany

autor

Röder Thorsten

• Faculty of Science and Center for Optoelectronics and Photonics Paderborn (CeOPP), Paderborn University, Warburger Straße 100, 33098 Paderborn, Germany
• Institut für Chemische Verfahrenstechnik, Hochschule Mannheim, Paul-Wittsack-Straße 10, 68163 Mannheim, Germany

autor

Herrmann Harald

• Faculty of Science and Center for Optoelectronics and Photonics Paderborn (CeOPP), Paderborn University, Warburger Straße 100, 33098 Paderborn, Germany

autor

Ricken Raimund

• Faculty of Science and Center for Optoelectronics and Photonics Paderborn (CeOPP), Paderborn University, Warburger Straße 100, 33098 Paderborn, Germany

autor

Silberhorn Christine

• Faculty of Science and Center for Optoelectronics and Photonics Paderborn (CeOPP), Paderborn University, Warburger Straße 100, 33098 Paderborn, Germany

autor

Kitzerow Heinz-S.

• Faculty of Science and Center for Optoelectronics and Photonics Paderborn (CeOPP), Paderborn University, Warburger Straße 100, 33098 Paderborn, Germany

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).