The spectroscopy investigation of ZnWO4:Tm3+ single crystal

Yang, Fugui; Tu, Chaoyang

doi:10.1016/j.jallcom.2012.04.084

Cited by 15 publications

(6 citation statements)

References 23 publications

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“…The ZnWO 4 crystals are biaxial, with two similar principal dielectric functions for one optical axis and a third, significantly larger function for the second optical axis29. This enables phase matching of the 795-nm pumping beam with the ~400 nm second-harmonic-generated beam, as illustrated in Fig.…”

Section: Resultsmentioning

confidence: 99%

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Self-Phase-Matched Second-Harmonic and White-Light Generation in a Biaxial Zinc Tungstate Single Crystal

Osewski

Belardini

Petronijevic

et al. 2017

Sci Rep

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Second-order nonlinear optical materials are used to generate new frequencies by exploiting second-harmonic generation (SHG), a phenomenon where a nonlinear material generates light at double the optical frequency of the input beam. Maximum SHG is achieved when the pump and the generated waves are in phase, for example through birefringence in uniaxial crystals. However, applying these materials usually requires a complicated cutting procedure to yield a crystal with a particular orientation. Here we demonstrate the first example of phase matching under the normal incidence of SHG in a biaxial monoclinic single crystal of zinc tungstate. The crystal was grown by the micro-pulling-down method with the (102) plane perpendicular to the growth direction. Additionally, at the same time white light was generated as a result of stimulated Raman scattering and multiphoton luminescence induced by higher-order effects such as three-photon luminescence enhanced by cascaded third-harmonic generation. The annealed crystal offers SHG intensities approximately four times larger than the as grown one; optimized growth and annealing conditions may lead to much higher SHG intensities.

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Section: Resultsmentioning

confidence: 99%

“…Dielectric function of ZnWO 4 demonstrating two polarization-dependent and one polarization-independent dielectric functions29.…”

Section: Figurementioning

confidence: 99%

Self-Phase-Matched Second-Harmonic and White-Light Generation in a Biaxial Zinc Tungstate Single Crystal

Osewski

Belardini

Petronijevic

et al. 2017

Sci Rep

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“…ZnO is a uniaxial material with small differences between the ordinary n o and extraordinary n e indices. In contrast, ZnWO 4 is an optically biaxial material, meaning it exhibits three different refractive indices . Two of these refractive indices along directions a [100] and c [001] have similar values, while the third one along direction b [010] has a higher value.…”

Section: Resultsmentioning

confidence: 99%

New Self‐Organization Route to Tunable Narrowband Optical Filters and Polarizers Demonstrated with ZnO–ZnWO₄ Eutectic Composite

Osewski

Belardini

Centini

et al. 2020

Advanced Optical Materials

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Electromagnetic fields interacting with microscopic structural features in a composite material provide emerging optical properties that surpass those offered by the individual components. However, composite materials can be generally lossy due to the scattering effects induced by inhomogeneities at the interfaces between different compounds. To overcome such problems, complicated and costly manufacturing procedures, such as top‐down approaches, are generally required. In contrast, here ZnO–ZnWO4 eutectic self‐organized composites grown by the micropulling method are considered, displaying sharp and strongly polarized transmission at 397 nm. Such an optical response is notable because it is not observed in either ZnO or ZnWO4 single crystals. The optical response is due to the refractive index matching of the two constituents, which self‐organize into ordered structures via a micropulling down method. The optical behavior reported here can directly lead to applications, such as tunable narrowband filters with bandpass of 3 nm and polarizers, paving the way to a new self‐organization route for manufacturing optical components.

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“…Furthermore, we determined that the quantum efficiency of ZnWO 4 : Eu 3+ IOPCs reached 70%, which has been rarely reported before. 8,30,31 According to previous literature reports, the highest inner quantum efficiency at room temperature was 66%, 8 which was determined by the luminescent lifetime in ZnWO 4 : Dy 3+ .…”

Section: Introductionmentioning

confidence: 82%

ZnWO₄/ZnWO₄ : Eu³⁺ inverse opal photonic crystal scintillator: efficient phosphors in radiation detection

Liu

Song

et al. 2015

RSC Adv.

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The spectroscopy investigation of ZnWO4:Tm3+ single crystal

Cited by 15 publications

References 23 publications

Self-Phase-Matched Second-Harmonic and White-Light Generation in a Biaxial Zinc Tungstate Single Crystal

Self-Phase-Matched Second-Harmonic and White-Light Generation in a Biaxial Zinc Tungstate Single Crystal

New Self‐Organization Route to Tunable Narrowband Optical Filters and Polarizers Demonstrated with ZnO–ZnWO₄ Eutectic Composite

ZnWO₄/ZnWO₄ : Eu³⁺ inverse opal photonic crystal scintillator: efficient phosphors in radiation detection

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The spectroscopy investigation of ZnWO4:Tm3+ single crystal

Cited by 15 publications

References 23 publications

Self-Phase-Matched Second-Harmonic and White-Light Generation in a Biaxial Zinc Tungstate Single Crystal

Self-Phase-Matched Second-Harmonic and White-Light Generation in a Biaxial Zinc Tungstate Single Crystal

New Self‐Organization Route to Tunable Narrowband Optical Filters and Polarizers Demonstrated with ZnO–ZnWO4 Eutectic Composite

ZnWO4/ZnWO4 : Eu3+ inverse opal photonic crystal scintillator: efficient phosphors in radiation detection

Contact Info

Product

Resources

About

New Self‐Organization Route to Tunable Narrowband Optical Filters and Polarizers Demonstrated with ZnO–ZnWO₄ Eutectic Composite

ZnWO₄/ZnWO₄ : Eu³⁺ inverse opal photonic crystal scintillator: efficient phosphors in radiation detection