A Powder Technique for the Evaluation of Nonlinear Optical Materials

Kurtz, S. K.; Perry, T. T.

doi:10.1063/1.1656857

Cited by 5,662 publications

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“…When the Li 2 Ga 2 GeS 6 was probed by 1.064 µm radiations of the Nd: YAG laser, a strong SHG signal at 0.532 µm was observed, indicating that the incoming 1.064 µm photons are efficiently up-converted to 0.532 µm radiation through the Li 2 Ga 2 GeS 6 . The SHG signal dependence of the particle-size of NLO materials has been shown to be a signature of the phasematching condition in NLO crystals 27,28 the SHG efficiency increases with the particle size and is saturated at a maximum value in the phase-matching condition. From our measurement, Figure 5, we see that the SHG signal from the We have not observed any degradation in the SHG signal for the Li 2 Ga 2 GeS 6 under prolonged laser irradiations as evidenced by the continued strong production of 0.532 µm light.…”

Section: Resultsmentioning

confidence: 99%

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Characterization of New Infrared Nonlinear Optical Material with High Laser Damage Threshold, Li₂Ga₂GeS₆

et al. 2008

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A new thio-germanium sulfide Li2Ga2GeS6 has been synthesized for the first time and its structure was found to be isomorphous with AgGaGeS4, which is well-known as a promising infrared NLO material. The host structure is built of GaS4 tetrahedra linked by corners to GeS4 tetrahedra to create a 3D framework forming tunnels along the c-axis, in which the Li+ions are located. The second harmonic generation (SHG) efficiency determined on powders of Li2Ga2GaS6 is 200 times larger than that of α-SiO2. Unlike AgGaS2 and AgGaGeS4, Li2Ga2GeS6 was observed to be very stable under prolonged Nd:YAG 1.064 μm laser pumping, indicative of a large improvement in laser damage threshold. This new material could supplant Ag phases in the next generation of high-power infrared NLO applications. Disciplines Atomic, Molecular and Optical Physics | Inorganic Chemistry | Materials Chemistry | Materials Science and Engineering CommentsReprinted with permission from Chemistry of Materials 20 (2008) ReceiVed March 12, 2008. ReVised Manuscript ReceiVed July 8, 2008 A new thio-germanium sulfide Li 2 Ga 2 GeS 6 has been synthesized for the first time and its structure was found to be isomorphous with AgGaGeS 4 , which is well-known as a promising infrared NLO material. The host structure is built of GaS 4 tetrahedra linked by corners to GeS 4 tetrahedra to create a 3D framework forming tunnels along the c-axis, in which the Li + ions are located. The second harmonic generation (SHG) efficiency determined on powders of Li 2 Ga 2 GaS 6 is ∼200 times larger than that of R-SiO 2 . Unlike AgGaS 2 and AgGaGeS 4 , Li 2 Ga 2 GeS 6 was observed to be very stable under prolonged Nd:YAG 1.064 µm laser pumping, indicative of a large improvement in laser damage threshold. This new material could supplant Ag phases in the next generation of high-power infrared NLO applications.

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Section: Resultsmentioning

confidence: 99%

“…The secondorder nonlinearity of the powder sample of Li 2 Ga 2 GeS 6 was examined using a modified Kurtz-NLO system with a 1.064 µm Nd:YAG laser. 27 Polycrystalline Li 2 Ga 2 GeS 6 was ground and sieved into distinct particle size ranges, <20, 20-45, 45-63, 63-75, 75-90, and 90-125 µm. They were placed in separate capillary tubes.…”

Section: Methodsmentioning

confidence: 99%

Characterization of New Infrared Nonlinear Optical Material with High Laser Damage Threshold, Li₂Ga₂GeS₆

et al. 2008

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“…Kurtz [12] second harmonic generation (SHG) test was performed to find the NLO property of APB crystal. The powdered crystal was illuminated using Spectra Physics Quanta Ray S2.…”

Section: Shg Studiesmentioning

confidence: 99%

Growth, structural, optical, thermal and mechanical properties of ammonium pentaborate single crystal

Balakrishnan

Bhagavannarayana

Ramamurthi

2008

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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Nonlinear optical single crystals of ammonium pentaborate (APB) were grown by the slow cooling method from aqueous solution. Grown crystal was characterized by powder X-ray diffraction (PXRD) and FT-IR spectral analysis. Perfection of the grown crystal was evaluated by high-resolution X-ray diffractometry (HRXRD). The effect of nylon threading on the perfection of the grown bigger crystal was also studied by HRXRD. The range and percentage of optical transmission was ascertained by recording UV-vis-NIR spectrum. Thermal properties were investigated by TG-DTA and DSC analyses. Its mechanical hardness was estimated by Vickers microhardness tester.

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“…The Kurtz-Perry powder SHG test is a decisive technique to determine the second order conversion efficiency of given material [15]. For present analysis, the single KDP and LA-ZTC crystals were powdered to micro-granules of even grain size and tightly packed in a quartz cavity.…”

Section: Shg Efficiency Testmentioning

confidence: 99%

Investigation on nonlinear optical and dielectric properties of L-arginine doped ZTC crystal to explore photonic device applications

Shkir

Hussaini²,

Shirsat

et al. 2016

Materials Science-Poland

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The present study is focused to explore the photonic device applications of L -arginine doped ZTC (LA-ZTC) crystals using nonlinear optical (NLO) and dielectric studies. The LA-ZTC crystals have been grown by slow evaporation solution technique. The chemical composition and surface of LA-ZTC crystal have been analyzed by means of energy dispersive spectroscopy (EDS) and surface scanning electron microscopy (SEM) techniques. The Vicker's microhardness study has been carried out to determine the hardness, work hardening index, yield strength and elastic stiffness of LA-ZTC crystal. The enhanced SHG efficiency of LA-ZTC crystal has been ascertained using the Kurtz-Perry powder SHG test. The closed-and-open aperture Z-scan technique has been employed to confirm the third order nonlinear optical nature of LA-ZTC crystal. The Z-scan transmittance data has been utilized to calculate the superior cubic susceptibility, nonlinear refractive index, nonlinear absorption coefficient and figure of merit of LA-ZTC crystal. The behavior of dielectric constant and dielectric loss of LA-ZTC crystal at different temperatures has been investigated using the dielectric analysis.

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A Powder Technique for the Evaluation of Nonlinear Optical Materials

Cited by 5,662 publications

References 40 publications

Characterization of New Infrared Nonlinear Optical Material with High Laser Damage Threshold, Li₂Ga₂GeS₆

Characterization of New Infrared Nonlinear Optical Material with High Laser Damage Threshold, Li₂Ga₂GeS₆

Growth, structural, optical, thermal and mechanical properties of ammonium pentaborate single crystal

Investigation on nonlinear optical and dielectric properties of L-arginine doped ZTC crystal to explore photonic device applications

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A Powder Technique for the Evaluation of Nonlinear Optical Materials

Cited by 5,662 publications

References 40 publications

Characterization of New Infrared Nonlinear Optical Material with High Laser Damage Threshold, Li2Ga2GeS6

Characterization of New Infrared Nonlinear Optical Material with High Laser Damage Threshold, Li2Ga2GeS6

Growth, structural, optical, thermal and mechanical properties of ammonium pentaborate single crystal

Investigation on nonlinear optical and dielectric properties of L-arginine doped ZTC crystal to explore photonic device applications

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Characterization of New Infrared Nonlinear Optical Material with High Laser Damage Threshold, Li₂Ga₂GeS₆

Characterization of New Infrared Nonlinear Optical Material with High Laser Damage Threshold, Li₂Ga₂GeS₆