Periodic domain patterning by electron beam of proton exchanged waveguides in lithium niobate | Zendy

D. S. Chezganov | Zendy; E. O. Vlasov | Zendy; Maxim Neradovskiy | Zendy; L. V. Gimadeeva | Zendy; Elizaveta Neradovskaya | Zendy; M. A. Chuvakova | Zendy; Hervé Tronche | Zendy; Florent Doutre | Zendy; Pascal Baldi | Zendy; Marc de Micheli | Zendy; V. Ya. Shur | Zendy

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

Author(s) -

D. S. Chezganov,

E. O. Vlasov,

Maxim Neradovskiy,

L. V. Gimadeeva,

Elizaveta Neradovskaya,

M. A. Chuvakova,

Hervé Tronche,

Florent Doutre,

Pascal Baldi,

Marc de Micheli,

V. Ya. Shur

Publication year - 2016

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.4949360

Subject(s) - lithium niobate , materials science , irradiation , second harmonic generation , optics , waveguide , proton , fabrication , planar , electron , dielectric , optoelectronics , layer (electronics) , cathode ray , beam (structure) , laser , nanotechnology , physics , quantum mechanics , medicine , alternative medicine , computer graphics (images) , pathology , computer science , nuclear physics

International audienceFormation 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 presenting a surface layer modified by the SPE process. The dependences of the domain sizes as a function of the dose and the distance between irradiated areas have been measured. Finally, we have demonstrated that electron beam patterning using surface resist layer can produce high quality periodical poling after channel waveguide fabrication. Second harmonic generation with normalized nonlinear conversion efficiency up to 48%/(W cm 2) has been achieved in such waveguides

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