Second harmonic generation in periodically poled MgO:LN crystal with 2 µm period created by e-beam irradiation

Savelyev, Evgeniy; Ахматханов, А. Р.; Chezganov, D. S.; Vlasov, E. O.; Pashnina, E. A.; Shur, V. Ya.; Tronche, Hervé; Doutre, Florent; Lunghi, Tommaso; Baldi, Pascal

doi:10.1080/00150193.2021.1888259

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“…[ 4 ] At the same time, hydroxyl groups play an important role in the creation of holographic and photonic devices, planar waveguides based on LN. [ 5,6 ]…”

Section: Introductionmentioning

confidence: 99%

Structure and Luminescent Properties of Double‐Doped LiNbO₃:Zn:Mg Crystals

Tokko,

Kadetova,

Prusskii

et al. 2024

Physica Status Solidi (a)

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The correlation between photoluminescence in the near‐IR region and point defect centers in the LiNbO3 crystals co‐doped with Zn and Mg both by homogeneous and direct methods has been studied. X‐ray diffraction (XRD) analysis shows that the LiNbO3:Zn:Mg (4.68:0.9 mol%) crystal obtained by homogeneous doping has the least number of intrinsic defects compared to the others. It has been established that ZnLi defects stimulate photoluminescence (PL) in the near‐IR region of the luminescence spectrum in the LiNbO3:Zn:Mg crystals obtained by homogeneous doping. The LiNbO3:Zn:Mg (4.68:0.90 mol%) crystal has the maximum PL intensity and the LiNbO3:Zn:Mg (3.83:0.97 mol%) crystal has the minimum. Both crystals are doped homogeneously. Such defects as niobium vacancies (VNb) and niobium in the empty octahedron (Nboct) are suggested as luminescence quenchers in the co‐doped crystals.

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“…[ 4 ] At the same time, hydroxyl groups play an important role in the creation of holographic and photonic devices, planar waveguides based on LN. [ 5,6 ]…”

Section: Introductionmentioning

confidence: 99%