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Title: Periodic domain patterning by electron beam of proton exchanged waveguides in lithium niobate

Abstract

Formation of domain structure by electron beam irradiation in congruent lithium niobate covered by surface dielectric layer with planar and channel waveguides produced by Soft Proton Exchange (SPE) process has been studied. Formation of domains with arbitrary shapes as a result of discrete switching has been revealed. The fact was attributed to ineffective screening of depolarization field in the crystals with a surface layer modified by SPE process. The dependences of the domain sizes on the dose and the distance between irradiated areas have been revealed. Finally, we have demonstrated that electron beam irradiation of lithium niobate crystals with surface resist layer can produce high quality periodical domain patterns after channel waveguide fabrication. Second harmonic generation with normalized nonlinear conversion efficiency up to 48%/(W cm{sup 2}) has been achieved in such waveguides.

Authors:
 [1]; ; ; ; ;  [1]; ; ; ;  [2]
  1. Institute of Natural Sciences, Ural Federal University, 620000 Ekaterinburg (Russian Federation)
  2. Laboratoire de Physique de la Matière Condensée, University of Nice-Sophia Antipolis, 06100 Nice (France)
Publication Date:
OSTI Identifier:
22591715
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 108; Journal Issue: 19; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CONVERSION; CRYSTALS; DEPOLARIZATION; DIELECTRIC MATERIALS; DOMAIN STRUCTURE; ELECTRON BEAMS; FABRICATION; HARMONIC GENERATION; IRRADIATION; LAYERS; LITHIUM; NIOBATES; NONLINEAR PROBLEMS; PERIODICITY; SOLAR PROTONS; SURFACES; WAVEGUIDES

Citation Formats

Chezganov, D. S., E-mail: chezganov.dmitry@urfu.ru, Shur, V. Ya., Labfer Ltd., 620014 Ekaterinburg, Vlasov, E. O., Neradovskiy, M. M., Gimadeeva, L. V., Neradovskaya, E. A., Chuvakova, M. A., Tronche, H., Doutre, F., Baldi, P., and De Micheli, M. P. Periodic domain patterning by electron beam of proton exchanged waveguides in lithium niobate. United States: N. p., 2016. Web. doi:10.1063/1.4949360.
Chezganov, D. S., E-mail: chezganov.dmitry@urfu.ru, Shur, V. Ya., Labfer Ltd., 620014 Ekaterinburg, Vlasov, E. O., Neradovskiy, M. M., Gimadeeva, L. V., Neradovskaya, E. A., Chuvakova, M. A., Tronche, H., Doutre, F., Baldi, P., & De Micheli, M. P. Periodic domain patterning by electron beam of proton exchanged waveguides in lithium niobate. United States. https://doi.org/10.1063/1.4949360
Chezganov, D. S., E-mail: chezganov.dmitry@urfu.ru, Shur, V. Ya., Labfer Ltd., 620014 Ekaterinburg, Vlasov, E. O., Neradovskiy, M. M., Gimadeeva, L. V., Neradovskaya, E. A., Chuvakova, M. A., Tronche, H., Doutre, F., Baldi, P., and De Micheli, M. P. 2016. "Periodic domain patterning by electron beam of proton exchanged waveguides in lithium niobate". United States. https://doi.org/10.1063/1.4949360.
@article{osti_22591715,
title = {Periodic domain patterning by electron beam of proton exchanged waveguides in lithium niobate},
author = {Chezganov, D. S., E-mail: chezganov.dmitry@urfu.ru and Shur, V. Ya. and Labfer Ltd., 620014 Ekaterinburg and Vlasov, E. O. and Neradovskiy, M. M. and Gimadeeva, L. V. and Neradovskaya, E. A. and Chuvakova, M. A. and Tronche, H. and Doutre, F. and Baldi, P. and De Micheli, M. P.},
abstractNote = {Formation of domain structure by electron beam irradiation in congruent lithium niobate covered by surface dielectric layer with planar and channel waveguides produced by Soft Proton Exchange (SPE) process has been studied. Formation of domains with arbitrary shapes as a result of discrete switching has been revealed. The fact was attributed to ineffective screening of depolarization field in the crystals with a surface layer modified by SPE process. The dependences of the domain sizes on the dose and the distance between irradiated areas have been revealed. Finally, we have demonstrated that electron beam irradiation of lithium niobate crystals with surface resist layer can produce high quality periodical domain patterns after channel waveguide fabrication. Second harmonic generation with normalized nonlinear conversion efficiency up to 48%/(W cm{sup 2}) has been achieved in such waveguides.},
doi = {10.1063/1.4949360},
url = {https://www.osti.gov/biblio/22591715}, journal = {Applied Physics Letters},
issn = {0003-6951},
number = 19,
volume = 108,
place = {United States},
year = {Mon May 09 00:00:00 EDT 2016},
month = {Mon May 09 00:00:00 EDT 2016}
}