Non-Linear Optical Characteristics of Novel Porphyrin Dye Media

1997 ◽  
Vol 479 ◽  
Author(s):  
K. J. McEwan ◽  
J. M. Robertson ◽  
A. P. Wylie ◽  
H. L. Anderson
Keyword(s):  
Excited State ◽  
Material Parameter ◽  
Central Atom ◽  
Heavy Atom ◽  
Excited State Absorption ◽  
Absorption Profile ◽  
Non Linear ◽  
Linear Optical Properties ◽  
Linear Optical ◽  
Atom Position

AbstractMeasurements of sensitive RSA phenonema in new porphyrin dyes are presented. Both the linear and non-linear optical properties are shown to depend strongly on the molecular structure. A detailed analysis of two of the porphyrins reveals that inter-systems crossing rate and the excited state absorption profile are strongly influenced by substitution of a heavy atom into the central atom position. It is shown that by appropriate choice of wavelength values in excess of 30 can be achieved for the material parameter σex / σgr. This value compares well with previously reported results and is achieved in conjunction with excited state lifetimes on the order of 300 ns.

Excited State and Non-linear Optical Properties of NIR Absorbing β-Thiophene-Fused BF2-Azadipyrromethene Dyes—Computational Investigation

2017 ◽  
Vol 28 (1) ◽  
pp. 243-250 ◽  
Author(s):  
Yogesh Gawale ◽  
Lydia Rhyman ◽  
Mohamed I. Elzagheid ◽  
Ponnadurai Ramasami ◽  
Nagaiyan Sekar
Keyword(s):  
Optical Properties ◽  
Excited State ◽  
Computational Investigation ◽  
Non Linear ◽  
Linear Optical Properties ◽  
Linear Optical

Experimental and Theoretical (ab initio and DFT) Analysis of UV-Vis Spectra, Thermodynamic Functions and Non-linear Optical Properties of 2-Chloro-3,4-Dimethoxybenzaldehyde

2015 ◽  
Vol 8 (2) ◽  
pp. 2122-2134
Author(s):  
Sarvendra Kumar ◽  
Rajesh Kumar ◽  
Jayant Teotia ◽  
M. K. Yadav
Keyword(s):  
Thermodynamic Functions ◽  
Title Compound ◽  
Density Functional ◽  
Structural Characteristics ◽  
Basis Sets ◽  
Ultraviolet Absorption Spectrum ◽  
Non Linear ◽  
Different Temperatures ◽  
Linear Optical Properties ◽  
Linear Optical

In the present work, UV- Visible spectra of 2-Chloro-3,4-Dimethoxybenzaldehyde (2,3,4-CDMB) compound  have been carried out experimentally and theoretically. The ultraviolet absorption spectrum of title compound in three solvents (Acetone, Diethyl Ether, CCl4) of different polarity were examined in the range of 200–500 nm. The structure of the molecule was optimized and the structural characteristics were determined by HF and DFT (B3LYP) methods with 6-31+G(d,p) and 6-311++G(d,p) as basis sets. The excitation energy, wavelength corresponds to absorption maxima () and oscillator strength (f) are calculated by Time-Dependent Density Functional Theory (TD-DFT) using B3LYP/6-31+G(d,p) and B3LYP/6-311++G(d,p) as basis sets. The electric dipole moment (μ), polarizability (α) and the first hyperpolarizability (β ) have been computed to evaluate the non-linear optical (NLO) response of the investigated compound by HF and DFT (B3LYP) with already mentioned basis sets. Thermodynamic functions of the title compound at different temperatures were also calculated.

scholarly journals Controlling the non-linear optical properties of MgO by tailoring the electronic structure

2020 ◽  
Vol 126 (3) ◽  
Author(s):  
Mukhtar Hussain ◽  
Hugo Pires ◽  
Willem Boutu ◽  
Dominik Franz ◽  
Rana Nicolas ◽  
...  
Keyword(s):  
Optical Properties ◽  
Electronic Structure ◽  
Non Linear ◽  
Linear Optical Properties ◽  
Linear Optical

Synthesis of pyrazole anchored three-coordinated organoboranes and their application in the detection of picric acid

2021 ◽  
Author(s):  
Shreenibasa Sa ◽  
Vanga Mukundam ◽  
Anupa Kumari ◽  
Ritwick Das ◽  
Krishnan Venkatasubbaiah
Keyword(s):  
Optical Properties ◽  
Picric Acid ◽  
Non Linear ◽  
Linear Optical Properties ◽  
Linear Optical

Three-coordinated organoboron fluorophores bearing 3,5-diphenyl pyrazoles have been synthesized and studied their optical and non-linear optical properties to detect picric acid.

Sign in / Sign up

Export Citation Format

Share Document