Strongly Luminescent Gold(III) Complexes with Long-Lived Excited States: High Emission Quantum Yields, Energy Up-Conversion, and Nonlinear Optical Properties

2013 ◽  
Vol 125 (26) ◽  
pp. 6780-6784 ◽  
Author(s):  
Wai-Pong To ◽  
Kaai Tung Chan ◽  
Glenna So Ming Tong ◽  
Chensheng Ma ◽  
Wai-Ming Kwok ◽  
...  
Keyword(s):  
Optical Properties ◽  
Excited States ◽  
Nonlinear Optical ◽  
Nonlinear Optical Properties ◽  
Quantum Yields ◽  
High Emission

The effect of the cobalt and manganese central metal ions on the nonlinear optical properties of tetra(4-propargyloxyphenoxy)phthalocyanines

2018 ◽  
Vol 42 (12) ◽  
pp. 9857-9864 ◽  
Author(s):  
D. Mwanza ◽  
M. Louzada ◽  
J. Britton ◽  
E. Sekhosana ◽  
S. Khene ◽  
...  
Keyword(s):  
Optical Properties ◽  
Metal Ions ◽  
Excited States ◽  
Nonlinear Optical ◽  
Nonlinear Optical Properties ◽  
Central Metal ◽  
Optical Limiters ◽  
Paramagnetic Complexes

The phthalocyanines were investigated as optical limiters. The paramagnetic complexes were not effective owing to quenching of the excited states.

Theoretical study on nonlinear optical properties of N-(6-hydroxyhexyl)-5-nitroazophenyl carbazole

2018 ◽  
Vol 27 (04) ◽  
pp. 1850036
Author(s):  
Quanjie Zhong ◽  
Jian Zheng ◽  
Lin Zhang ◽  
Xuan Luo
Keyword(s):  
Optical Properties ◽  
Charge Transfer ◽  
Excited States ◽  
Density Functional ◽  
Nonlinear Optical ◽  
Dipole Moments ◽  
Electron Excitation ◽  
Nonlinear Optical Properties ◽  
Transition Dipole ◽  
Leading Role

The first-, second- and third-order nonlinear optical properties of N-(6-hydroxyhexyl)-5-nitroazophenyl carbazole in gas phase employing sum-over-states (SOS) method have been calculated for the first time. The ground state molecular structure of N-(6-hydroxyhexyl)-5-nitroazophenyl carbazole was obtained by the geometrical optimizations based on the B3LYP/6-31[Formula: see text]G(d) level. The energy of excited states and transition dipole moments between different excited states were obtained by using the time-dependent density functional theory (TDDFT) based on the CAM-B3LYP/Sadlej POL level. Charge transfer during electron excitation was analyzed based on hole and electron distributions. Our calculations showed that the N-(6-hydroxyhexyl)-5-nitroazophenyl carbazole has good nonlinear optical properties and its nonlinear optical properties arise from charge-transfer excitation and local excitation but charge transfer plays the leading role.

Theoretical Studies of the Nonlinear Optical Properties of L-Arginine Phosphate

1989 ◽  
Vol 173 ◽  
Author(s):  
C. A. Langhoff
Keyword(s):  
Optical Properties ◽  
Excited States ◽  
Nonlinear Optical ◽  
Nonlinear Crystal ◽  
Tensor Component ◽  
Nonlinear Optical Properties ◽  
Theoretical Studies ◽  
Quantum Calculations ◽  
Nlo Properties ◽  
Charge Movements

This paper will present quantum calculations on the L-arginine part of the nonlinear crystal L-arginine phosphate. The emphasis here will be on understanding the NLO properties in terms of the excited states of the system and accompanying charge movements in these excited states. Both the carboxylate and the guanidyl ends of the molecule contribute to the values of β. The guanidyl seems to be the bigger contributor, but the contribution varies with the particular tensor component. The properties of the crystal will not be discussed here.

MAGNETIC FIELD, PRESSURE AND TEMPERATURE DEPENDENT OPTICAL PROPERTIES IN A GaAs 9.0 P 1.0 QUANTUM DOT

2014 ◽  
Vol 6 (2) ◽  
pp. 1178-1190
Author(s):  
A. JOHN PETER ◽  
Ada Vinolin
Keyword(s):  
Magnetic Field ◽  
Optical Properties ◽  
Quantum Dot ◽  
Field Strength ◽  
Magnetic Field Strength ◽  
Photon Energy ◽  
Nonlinear Optical ◽  
Binding Energies ◽  
Nonlinear Optical Properties ◽  
Optical Rectification

Simultaneous effects of magnetic field, pressure and temperature on the exciton binding energies are found in a 9.0 1.0 6.0 4.0 GaAs P / GaAs P quantum dot. Numerical calculations are carried out taking into consideration of spatial confinement effect. The cylindrical system is taken in the present problem with the strain effects. The electronic properties and the optical properties are found with the combined effects of magnetic field strength, hydrostatic pressure and temperature values. The exciton binding energies and the nonlinear optical properties are carried out taking into consideration of geometrical confinement and the external perturbations.Compact density approach is employed to obtain the nonlinear optical properties. The optical rectification coefficient is obtained with the photon energy in the presence of pressure, temperature and external magnetic field strength. Pressure and temperature dependence on nonlinear optical susceptibilities of generation of second and third order harmonics as a function of incident photon energy are brought out in the influence of magnetic field strength. The result shows that the electronic and nonlinear optical properties are significantly modified by the applications of external perturbations in a 9.0 1.0 6.0 4.0 GaAs P / GaAs P quantum dot.

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