Topics

How to maximize birefringence and nonlinearity of π-conjugated cyanurates.

08:00 EDT 12th September 2019 | BioPortfolio

Summary of "How to maximize birefringence and nonlinearity of π-conjugated cyanurates."

Materials with large birefringence (Δn) are highly needed by fiber optics isolators, whereas crystals showing strong second order harmonic generation (SHG) are the key component for all-solid-state laser devices. Cyanurate constructed by the pla-nar π-conjugated ring (C3N3O3, CY) is a class of fascinating material exhibiting not only very large Δn (larger than that of cal-cite), but also strong SHG (2 times that of BBO). Here we report five new cyanurates (I-V) and their single crystal structures, among them II realizes a Δn = 0.4, the maximum in the cyanurate family, and IV realizes a d33 = 6.69 pm/V, one of the highest values in the cyanurate family. And we discover a dependence between Δn and coplanarity of the CY rings that is explicitly described by a Boltzmann function, in which the coplanarity is defined by the dihedral angle (γ) between the CY plane and the principal optical axes XY plane. And II realizes the maximum Δn due to its zero γ that indicates perfect coplanarity. Such a Δn-γ dependence also allows the Δn-prediction of cyanurates. Furthermore, we uncover the SHG intensity of cyanurates increases monotonically as the angle (θ) between the maximum hyperpolarizability (max) vector and the crystal 21 polar axis decreases. We predict the dij to extend well beyond such a value and maximizes at θ = 0°. Our results have significant implica-tions for the future rational design and discovery of high-performance materials of π-conjugated and other related systems.

Affiliation

Journal Details

This article was published in the following journal.

Name: Journal of the American Chemical Society
ISSN: 1520-5126
Pages:

Links

DeepDyve research library

PubMed Articles [1202 Associated PubMed Articles listed on BioPortfolio]

Uniform alignment of non-π-conjugated species enhances deep ultraviolet optical nonlinearity.

The precision of array of laser applications and manipulation on smaller scales are limited by the so-called 200 nm wall, and breakthroughs rely on the discovery of new materials with transparency and...

All-circular hole microstructured fiber with high birefringence and low confinement loss.

An air-silica microstructure optical fiber of ultrahigh birefringence of the order ∼10 and low confinement loss is proposed. The birefringence is achieved by axial anisotropy introduced in the fiber...

Probing the in situ Elastic Nonlinearity of Rocks with Earth Tides and Seismic Noise.

Heterogeneous materials such as rocks, concrete, and granular materials exhibit a strong elastic nonlinearity. The sensitivity of the elastic nonlinearity to the applied stress and pore pressure in pr...

Probing third-order nonlinearity in serotonin: A Z-scan study.

Serotonin (5-hydroxytryptamine, 5-HT) is a crucial endogenous monoamine neurotransmitter that modulates neurotransmission, gastrointestinal motility, hemostasis, and cardiovascular integrity. There ha...

A new barium fluorooxoborate BaBOF·xHO with large birefringence and a wide UV transparency window.

A new barium fluorooxoborate, BaB5O8F·xH2O (x ≈ 0.17), with two interesting independent three-dimensional B-O/F frameworks has been synthesized by a solid-state reaction in a closed system. Compare...

Clinical Trials [371 Associated Clinical Trials listed on BioPortfolio]

Amblyopia and Strabismus Detection Using Retinal Birefringence Imaging

The purpose of this project is to compare the accuracy of two products at detecting amblyopia and strabismus in children. The devices will be Rebiscan's "blinq" (Pediatric Vision Scanner; ...

Study Evaluating The Effects Of Bazedoxifene/Conjugated Estrogens On Endometrial Safety And Postmenopausal Osteoporosis

The purpose of this research study is to evaluate the safety and effectiveness of this investigational drug for the treatment of menopausal symptoms while protecting the endometrium (uteri...

Study Comparing Formulations of Bazedoxifene/Conjugated Estrogens

The primary purpose is to determine bioavailability of Bazedoxifene/conjugated estrogen formulations for future testing purposes.

Study Evaluating Bazedoxifene/Conjugated Estrogen Combinations in Vasomotor Symptoms Associated With Menopause

The purpose of this study is to determine whether Bazedoxifine/conjugated estrogens are effective in the treatment of vaginal atrophy.

Study Evaluating Bazedoxifene/Conjugated Estrogen Combinations in Symptoms Associated With Menopause

The purpose of this study is to determine whether bazedoxifene/conjugated estrogens combinations are effective in the treatment of moderate to severe vasomotor symptoms associated with men...

Medical and Biotech [MESH] Definitions

The property of nonisotropic media, such as crystals, whereby a single incident beam of light traverses the medium as two beams, each plane-polarized, the planes being at right angles to each other. (Cline et al., Dictionary of Visual Science, 4th ed)

A collective term for a group of around nine geometric and positional isomers of LINOLEIC ACID in which the trans/cis double bonds are conjugated, where double bonds alternate with single bonds.

Measures aimed at providing appropriate supportive and rehabilitative services to minimize morbidity and maximize quality of life after a long-term disease or injury is present.

Application of marketing principles and techniques to maximize the use of health care resources.

A pharmaceutical preparation containing a mixture of water-soluble, conjugated estrogens derived wholly or in part from URINE of pregnant mares or synthetically from ESTRONE and EQUILIN. It contains a sodium-salt mixture of estrone sulfate (52-62%) and equilin sulfate (22-30%) with a total of the two between 80-88%. Other concomitant conjugates include 17-alpha-dihydroequilin, 17-alpha-estradiol, and 17-beta-dihydroequilin. The potency of the preparation is expressed in terms of an equivalent quantity of sodium estrone sulfate.

Quick Search


DeepDyve research library

Searches Linking to this Article