A
Arun Gaur
Researcher at Hindu College, University of Delhi
Publications - 8
Citations - 71
Arun Gaur is an academic researcher from Hindu College, University of Delhi. The author has contributed to research in topics: Z-scan technique & Direct and indirect band gaps. The author has an hindex of 5, co-authored 8 publications receiving 64 citations.
Papers
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Journal ArticleDOI
Nonlinear optical properties of cobalt and iron doped CdSe nanoparticles using Z-scan technique
Poonam Gaur,B.P. Malik,Arun Gaur +2 more
TL;DR: In this paper, the synthesis of pure, Cobalt (Co) and Iron (Fe) doped CdSe nanoparticles by the wet chemical method has been investigated by using X-ray diffraction (XRD), UV-vis spectroscopy to find the optical direct band gap and estimation of particle size by using Debye-Scherrer formula and HRTEM.
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Concentration and pump intensity dependent gain studies for disodium flourescein (FDS), cresyl violet (CV), and rhodamine- 590 (Cl) and cresyl violet mixture
TL;DR: In this paper, the dye concentration dependence gain spectra for disodium fluorescein (FDS) cresyl violet (CV) and a dye mixture [Rh 590 (Cl)+CV] dissolved in methanol have been studied by amplified spontaneous emission (ASE) technique under pulsed N2-laser excitation.
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Determination of nonlinear absorption and refraction in direct and indirect band gap crystals by Z-scan method.
TL;DR: The materials of large band gap with optical nonlinearity and fast response speed should be dominating factor for further photonic devices such as optical limiters, optical switches and optical modulators.
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Study of transmittance dependence closed-aperture Z-scan curves in the materials with nonlinear refraction and strong absorption
TL;DR: In this paper, the authors measured the nonlinear refraction and absorption in the bulk of CdS, ZnS and PbI2 with frequency double Nd:YAG laser.
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A pulsed N2-laser study of the effects of substituents on the efficiency of Coumarins
TL;DR: In this paper, the effect of substitutions on Coumarin dyes is discussed in terms of emission from an ICT excited state and an important non-radiative decay path involving the rotation of the amine functionality (7th position) leading to a twisted intramolecular CT state.