Nonlinear optical characterization of LiNbO_3 I Theoretical analysis of Maker fringe patterns for x-cut wafers

Sanford, Norman A.; Aust, J. A.

doi:10.1364/josab.15.002885

Cited by 11 publications

(4 citation statements)

References 15 publications

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“…The much higher value obtained for the LiNbO3 substrate, eff (2) = 12.9 pm/V, is ascribed to the little lattice misfit between ZnO and LiNbO3 (-8.44%) which is even lower than for ZnO/Sapphire (-15.53%) [42]. However, it must be pointed out that the Maker fringes curve presented [30] for the latter case may possibly include a contribute from the LiNbO3 substrate [43], which is a good nonlinear material and may itself significantly contribute to the SHG.…”

Section: A the Effect Of Crystalline Structurementioning

confidence: 76%

Second harmonic generation from ZnO films and nanostructures

Larciprete¹,

Centini²

2015

Applied Physics Reviews

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Zinc oxide ZnO is a n-type semiconductor having a wide direct band gap (3.37 eV) as well as a\ud non-centrosymmetric crystal structure resulting from hexagonal wurtzite phase. Its wide transparency\ud range along with its second order nonlinear optical properties make it a promising material\ud for efficient second harmonic generation processes and nonlinear optical applications in general. In\ud this review, we present an extensive analysis of second harmonic generation from ZnO films and\ud nanostructures. The literature survey on ZnO films will include some significant features affecting\ud second harmonic generation efficiency, as crystalline structure, film thickness, surface contributes,\ud and doping. In a different section, the most prominent challenges in harmonic generation from ZnO\ud nanostructures are discussed, including ZnO nanowires, nanorods, and nanocrystals, to name a few.\ud Similarly, the most relevant works regarding third harmonic generation from ZnO films and nanostructures\ud are separately addressed. Finally, the conclusion part summarizes the current standing of\ud published values for the nonlinear optical coefficients and for ZnO films and nanostructures,\ud respectively

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Section: A the Effect Of Crystalline Structurementioning

confidence: 76%

Second harmonic generation from ZnO films and nanostructures

Larciprete¹,

Centini²

2015

Applied Physics Reviews

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“…In 1995, Herman and Hayden (HH) [10] presented a Maker fringe formulation that takes into account either the anisotropy or the absorption of the constituent NLO materials as well as back reflection of SH waves causing multiple reflections, which correctly predicted experimental results [11]. Other formulations that account for back reflections of both fundamental and SH assume the slowlyvarying amplitude approximation or partially overlapping beams by using coupled wave equations or Green's function analysis [12][13][14]. Matrix techniques were used to numerically solve the SH signals from an arbitrarily oriented biaxial medium [15,16] or a multilayered structure with multiple nonlinear layers [17].…”

Section: Introductionmentioning

confidence: 98%

“…The setup for electrode contact poling is somewhat simpler than for corona poling, but requires two electrodes on both sides of the NLOP to apply voltage. Various methods for characterization of secondorder electro-optic (EO) effects [4][5][6] and second-harmonic generation (SHG) [7][8][9][10][11][12][13][14][15][16][17] have been investigated. The Maker fringe technique [7] is one of the most popular techniques used in determining the tensorial second-harmonic (SH) NLO coefficients j d µ (µ = 1-3, j = 1-6) associated with SHG.…”

Section: Introductionmentioning

confidence: 99%

Closed-form Maker fringe formulas for poled polymer thin films in multilayer structures

Park¹,

Herman²

2011

Opt. Express

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We report new closed-form expressions for Maker fringes of anisotropic and absorbing poled polymer thin films in multilayer structures that include back reflections of both fundamental and second-harmonic waves. The expressions, based on boundary conditions at each interface, can be applied to multilayer structures containing a buffer and a transparent conducting oxide layer, which might enhance multiple reflections of fundamental and second-harmonic waves inside a nonlinear thin film layer. This formulation facilitates Maker fringe analysis for a sample containing additional multilayer structures on either side of a poled polymer thin film. Experimental data and numerical simulations are given to indicate the importance of inclusion of such a reflective layer in analyses for reliable characterization of second-harmonic tensor elements.

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“…Lithium niobate is characterized by nonstoichiometric composition with a high concentration of internal defects which can be compensated with the addition of foreign impurities such as Mg, Zn, In, Sc that increase the stability of the crystal to laser irradiation [3]. Nonlinear optical properties of pure and doped with MgO till 5% crystals of lithium niobate today are well understood [4][5][6][7][8][9]. However, lithium niobate crystal with 7% MgO amount is poorly known in terms of nonlinear properties despite the fact that Sen et al [10] attempted to study optical second harmonic generation (SHG) in this crystal, their investigations are rather qualitative.…”

Section: Introductionmentioning

confidence: 99%