Analysis of Wave Propagation in a Homogeneous Dielectric Crystal

Ugwu, E. I.; Olayinka, Akinola Samson; Olabode, F I

doi:10.1260/1750-9548.4.4.293

Cited by 5 publications

(2 citation statements)

References 13 publications

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“…Optical conductivity is one of the powerful tools for studying electronic states in materials. The optical conductivity (σ) of the crystal was calculated using the following relation [19,20]:…”

Section: Linear Optical Studies 241 Diffused Reflectance Spectroscopic Studiesmentioning

confidence: 99%

Effect of L-asparagine as dopant on the growth and characteristics of ammonium tetroxalate dihydrate single crystal

Jerusha

Kirupavathy²

2020

Materials Science-Poland

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Single crystals of L-asparagine doped ammonium tetroxalate dihydrate were grown using slow evaporation solution growth technique with deionized water as a solvent. The shift and intensity of the peaks in the single crystal X-ray diffraction and Fourier transform infrared analyses confirmed the inclusion of L-asparagine in the ammonium tetroxalate dihydrate crystal structure. The optical transmission characteristics viz. optical band gap, optical conductivity, etc., were determined. Thermal studies revealed the occurrence of anomalies at 135.3 °C and 221.7 °C leading to the possibility of phase transitions and thereby, ferroelectric behavior. Vickers microhardness studies enabled determination of various microhardness parameters. Dielectric behavior was analyzed by varying the temperature and frequency. Anomalies were observed at 135 °C and 221 °C suggesting the existence of ferroelectric nature of the compound. Self-defocusing effect was observed. The polarization-electric field hysteresis loops showed a pinched effect due to defects induced by inclusion of dopant. The crystals were characterized by single crystal XRD, FT-IR, DRS, UV-Vis-NIR, Vickers microhardness test as well as thermal and dielectric techniques. In brief, L-asparagine as a dopant in ammonium tetroxalate dihydrate altered various physical properties of the crystals. They were highly transparent in the visible region with a wider optical band gap, softer material than the parent, higher phase transition temperature of 135 °C, negative nonlinearity and self-defocusing ability.

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Section: Linear Optical Studies 241 Diffused Reflectance Spectroscopic Studiesmentioning

confidence: 99%

Effect of L-asparagine as dopant on the growth and characteristics of ammonium tetroxalate dihydrate single crystal

Jerusha

Kirupavathy²

2020

Materials Science-Poland

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show abstract

“…According to the one component or anomalous Drude model, both the carrier relaxation time and its effective mass of the charges are assumed to be as the functions of photon frequency (ω). But for alternative, multi component model, the real part of the optical conductivity (σ) of the crystal was calculated using the following relations [10,11]:…”

Section: Linear and Nonlinear Optical Studiesmentioning

confidence: 99%

Optical Conductivity and Dielectric Response of an Organic Aminopyridine NLO Single Crystal

Arumanayagam¹,

Murugakoothan²

2011

JMMCE

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This paper explores the correlation of electro-optical properties with dielectric properties of an organic single crystal. The optical constants of the organic aminopyridine single crystal have been studied. The second harmonic generation efficiency of the grown crystal, based on powder measurement, is 2.9 times higher than that of KDP. The real and imaginary part of the complex refractive index and dielectric constant of the crystal were determined. The optical and electrical conductivity of the grown crystal were studied.

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Optical, electrical, mechanical properties of Pr3+ and Yb3+ doped phosphate glasses

Deepa¹,

Vinothkumar

Moorthy

et al. 2020

Opt Quant Electron

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Analysis of Wave Propagation in a Homogeneous Dielectric Crystal

Cited by 5 publications

References 13 publications

Effect of L-asparagine as dopant on the growth and characteristics of ammonium tetroxalate dihydrate single crystal

Effect of L-asparagine as dopant on the growth and characteristics of ammonium tetroxalate dihydrate single crystal

Optical Conductivity and Dielectric Response of an Organic Aminopyridine NLO Single Crystal

Optical, electrical, mechanical properties of Pr3+ and Yb3+ doped phosphate glasses

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