scholarly journals Helicenes Grafted with 1,1,4,4-Tetracyanobutadiene Moieties: π-Helical Push-Pull Systems with Strong Electronic Circular Dichroism and Two-Photon Absorption

2018 ◽  
Vol 24 (54) ◽  
pp. 14484-14494 ◽  
Author(s):  
Romain Bouvier ◽  
Raphaël Durand ◽  
Ludovic Favereau ◽  
Monika Srebro-Hooper ◽  
Vincent Dorcet ◽  
...  
Keyword(s):  
Circular Dichroism ◽  
Photon Absorption ◽  
Electronic Circular Dichroism ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Pull Systems ◽  
Circular Dichroïsm

scholarly journals Межзонный двухфотонный линейно-циркулярный дихроизм в полупроводниках в приближении Кейна

2022 ◽  
Vol 56 (1) ◽  
pp. 61
Author(s):  
В.Р. Расулов ◽  
Р.Я. Расулов ◽  
Б.Б. Ахмедов ◽  
И.А. Муминов
Keyword(s):  
Circular Dichroism ◽  
Photon Absorption ◽  
Degree Of Polarization ◽  
Optical Transitions ◽  
Narrow Gap ◽  
Two Photon Absorption ◽  
Narrow Gap Semiconductors ◽  
Two Photon ◽  
Absorption Of Light ◽  
Circular Dichroïsm

Interband two-photon optical transitions are classified and expressions are obtained for the matrix elements in a narrow-gap semiconductor depending on the band parameters, degree of polarization, and light frequency. It is shown that the main contribution to two-photon linear-circular dichroism in narrow-gap semiconductors is made by optical transitions proceeding from the subband of light holes to the conduction band. The dependences of the partial coefficients of interband two-photon absorption of light, which differ from each other by the types of optical transitions, are analyzed depending on the degree of polarization of the light, and a quantitative analysis of the coefficient of linear-circular dichroism of two-photon absorption of light is carried out. Expressions are obtained for the spectral dependence of the coefficient of interband two-photon absorption of light in narrow-gap semiconductors in the Kane model.

Computational Study of the One- and Two-Photon Absorption and Circular Dichroism of (l)-Tryptophan

2010 ◽  
Vol 114 (19) ◽  
pp. 6500-6512 ◽  
Author(s):  
Maxime Guillaume ◽  
Kenneth Ruud ◽  
Antonio Rizzo ◽  
Susanna Monti ◽  
Zijing Lin ◽  
...  
Keyword(s):  
Circular Dichroism ◽  
Computational Study ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon ◽  
The One ◽  
Circular Dichroïsm

COEFFICIENT OF INTERBAND TWO-PHOTON ABSORPTION OF LIGHT AND ITS LINEAR-CIRCULAR DICHROISM

2021 ◽  
pp. 39-43
Author(s):  
V. R. Rasulov ◽  
R. Y. Rasulov ◽  
B. B. Axmedov ◽  
I. A. Muminov ◽  
M. X. Qo’chqorov
Keyword(s):  
Circular Dichroism ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Absorption Of Light ◽  
Circular Dichroïsm

Some new aspects of lanthanide optical spectroscopy: circular dichroism and two-photon absorption

1990 ◽  
Vol 102 (3) ◽  
pp. 255-268
Author(s):  
Mihir Chowdhury ◽  
A. K. Banerjee ◽  
T. Kundu ◽  
L. Kundu ◽  
T. Chakraborty
Keyword(s):  
Circular Dichroism ◽  
Optical Spectroscopy ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Circular Dichroïsm

scholarly journals Two-photon absorption and two-photon circular dichroism of hexahelicene derivatives: a study of the effect of the nature of intramolecular charge transfer

RSC Advances ◽  
2015 ◽  
Vol 5 (23) ◽  
pp. 17429-17437 ◽  
Author(s):  
Carlos Díaz ◽  
Yuly Vesga ◽  
Lorenzo Echevarria ◽  
Irena G. Stará ◽  
Ivo Starỳ ◽  
...  
Keyword(s):  
Circular Dichroism ◽  
Charge Transfer ◽  
Intramolecular Charge Transfer ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Electronic Delocalization ◽  
Circular Dichroïsm

Effect of the strength and nature of the extension of the π-electronic delocalization on TPA and TPCD of helicenes derivatives.

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