Generation of efficient terahertz waves using as-grown DASC single crystals

Brahadeeswaran, A. S.; Takahashi, B. Y.; Yoshimura, Chiaki; Tani, D. M.; Okada, Étienne; Nashima, F. S.; Mori, Go; Hangyo, H. M.; Itō, Isao; Sasaki, J.

doi:10.1109/cleopr.2013.6600536

Cited by 3 publications

(3 citation statements)

References 7 publications

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“…2 Columbic interactions between the charged dipole entities has opened a modern era of NLO materials, being generated by the slight modifications of the DAST components, 4-(4-(dimethylamino)styryl)-1-methylpyridinium-4 cation and methylbenzenesulfonate anion [13][14][15][16][17][18].…”

Section: Accepted Manuscriptmentioning

confidence: 99%

New organic binary solids with phenolic coformers for NLO applications

Draguta

Fonarı

Leonova

et al. 2015

Journal of Molecular Structure

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Five binary adducts between N,N-dimethyl-4-[(E)-2-(pyridin-4-yl)ethenyl]aniline) 1, N,N-diethyl-4-[(E)-2-(pyridin-4-yl)ethenyl]aniline) 2, N,N-dimethyl-4-[(E)-pyridin-3-yldiazenyl]aniline 3, and coformers that include 4-nitrophenol I, 4-nitrobenzoic acid II, benzene-1,3-diol III, and 2,4-dinitrophenol IV were synthesized to follow the factors influencing the formation of polar crystals. New solids were characterized by melting points and absorption spectra, while their structures were proven by single crystal X-ray diffraction. Adducts differ by the components' ratio and position of the acidic hydrogen atom, thus giving examples of four new cocrystals and one salt. The single crystal X-ray analysis revealed the acentric packing for two compounds, 1 . (I) and 3(3) . (III) that crystallize in the Pca2 1and P1 space groups. The melting point data and the cut-off wavelength from absorption spectra show that these materials are stable till relatively high temperatures and transparent in a wide range of spectrum.

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Section: Accepted Manuscriptmentioning

confidence: 99%

New organic binary solids with phenolic coformers for NLO applications

Draguta

Fonarı

Leonova

et al. 2015

Journal of Molecular Structure

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“…The heterocyclic molecule 2-aminopyridine has frequently been used as a ligand in metal complexes with a second harmonic generation. [11][12][13][14][15] Nicotinic acid and its biologically active derivatives have been extensively researched over the last decade [16] and 6-chloronicotinic acid (CN) is a key component of agrochemicals, animal feed enrichment, plasma cholesterol, and pharmaceuticals. [17] In the present work, synthesis, growth, physicochemical characterization, and computational studies on aminopyridinium chloronicotinate single crystal are discussed by employing different characterization techniques such as single-crystal X-ray diffraction, powder X-ray diffraction, Fourier transforms infrared, UV-vis-NIR, thermogravimetric and differential thermal analysis (TG/DTA), and Vickers microhardness test.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Growth, Physicochemical Characterization, and Computational Studies on Aminopyridinium Chloronicotinate Single Crystal

Amudha¹,

Santhakumari²,

Chandrika³

et al. 2022

Crystal Research and Technology

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Aminopyridinium chloronicotinate (APCN) single crystals are grown using a slow evaporation solution growth method. The APCN crystal belongs to the monoclinic crystal system with a centrosymmetric space group P2 1 /c, resulted from the X-ray diffraction analysis. Powder X-ray diffraction analysis is used to determine the crystallinity nature of grown crystals. Various functional groups in the grown crystal were identified using Fourier transform infrared spectroscopy. The optical transmittance, energy bandgap of the crystal is analyzed through UV-vis-NIR spectroscopy. The thermal stability of APCN crystal is studied by using thermogravimetric and differential thermal analysis. The mechanical property of the grown crystal is determined by the Vickers microhardness test. The density functional theory method at B3LYP with 6-31+G(d,p) basis set is used to perform the theoretical investigations in order to get the information regarding the HOMO-LUMO, global chemical reactivity descriptors, natural bond orbital, Mulliken atomic charge, molecular electrostatic potential, and thermodynamical properties of the molecule in the gaseous state.

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“…1,2 In the past few decades, many organic NLO crystals have been developed, including a number of pyridinium derivatives and configurationally locked polyene derivatives with a D-π-A molecule construction, such as DAST, DSTMS, DASC, DASB, DSCHS, TPNS, OH1, DAV1, MH2, etc. ‡ [3][4][5][6][7][8][9][10][11][12] In particular, DAST, DSTMS and OH1 exhibit excellent NLO performance because of their very high NLO susceptibilities and large electro-optic (EO) coefficients and they have become some of the few commercial organic NLO crystals which are suitable for terahertz (THz) wave generation and detection. However, practical applications of these materials are still restricted due to optical absorption in the working spectral region, difficulty in large size and high optical quality crystal growth, or low chemical stability.…”

Section: Introductionmentioning

confidence: 99%