scholarly journals Dependence of the nonlinear optical response of CdSe nanoscrolls on coating with oleic or acetic acid

2021 ◽  
Vol 2015 (1) ◽  
pp. 012048
Author(s):  
A D Golinskaya ◽  
A M Smirnov ◽  
V N Mantsevich ◽  
M V Kozlova ◽  
D A Kurtina ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Nonlinear Optical ◽  
Coupling Effect ◽  
Laser Pulses ◽  
Optical Response ◽  
Red Shift ◽  
Nonlinear Optical Response ◽  
Third Harmonic ◽  
The Third ◽  
The One

Abstract The photoluminescence and nonlinear transmission of atomically thin population of colloidal CdSe rolled-up nanosheets were investigated at the one-photon stationary excitations of excitons by the third harmonic of Nd3+:YAP laser pulses. It was revealed that the nonlinear optical response of the nanoscrolls is strongly influenced by multiwalled rolled-up structure. The broadening of exciton band and the red shift of the photoluminescence were observed and explained by coupling effect within the folded scroll-layers.

scholarly journals Ultrafast Third-Order Nonlinear Optical Response Excited by fs Laser Pulses at 1550 nm in GaN Crystals

Materials ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3194
Author(s):  
Adrian Petris ◽  
Petronela Gheorghe ◽  
Tudor Braniste ◽  
Ion Tiginyanu
Keyword(s):  
Harmonic Generation ◽  
Nonlinear Optical ◽  
Laser Pulses ◽  
Third Harmonic Generation ◽  
High Repetition Rate ◽  
Third Order ◽  
Third Harmonic ◽  
The Third ◽  
High Repetition ◽  
Gan Crystal

The ultrafast third-order optical nonlinearity of c-plane GaN crystal, excited by ultrashort (fs) high-repetition-rate laser pulses at 1550 nm, wavelength important for optical communications, is investigated for the first time by optical third-harmonic generation in non-phase-matching conditions. As the thermo-optic effect that can arise in the sample by cumulative thermal effects induced by high-repetition-rate laser pulses cannot be responsible for the third-harmonic generation, the ultrafast nonlinear optical effect of solely electronic origin is the only one involved in this process. The third-order nonlinear optical susceptibility of GaN crystal responsible for the third-harmonic generation process, an important indicative parameter for the potential use of this material in ultrafast photonic functionalities, is determined.

WEAK FIELD NONLINEAR OPTICAL RESPONSE OF FERMIONS IN FRENKEL EXCITON CHAINS

1992 ◽  
Vol 06 (21) ◽  
pp. 3441-3467 ◽  
Author(s):  
FRANK C. SPANO
Keyword(s):  
Nonlinear Optical ◽  
Optical Response ◽  
Weak Field ◽  
Nonlinear Optical Response ◽  
Electronic Excitations ◽  
Third Order ◽  
Nonlinear Optical Susceptibility ◽  
The Third ◽  
Optical Susceptibility ◽  
Site Disorder

In this paper the third order nonlinear optical response of a Frenkel chain composed of N dipole-dipole coupled two-level molecules is reviewed. The fundamental electronic excitations of such a system are, in fact, fermions, a property which greatly simplifies the eigenspectrum for multiexciton states. The introduction of site disorder does not disrupt the fermion nature and is therefore easily incorporated into a general expression of the third order nonlinear optical susceptibility.

Excited state dynamics of the third-order nonlinear optical response in diphenylhexatriene

1993 ◽  
Author(s):  
D. C. Rodenberger ◽  
Weidong Chen ◽  
Rui-Fang Shi ◽  
Qihou L. Zhou ◽  
Anthony F. Garito
Keyword(s):  
Excited State ◽  
Nonlinear Optical ◽  
Optical Response ◽  
Nonlinear Optical Response ◽  
Third Order ◽  
Excited State Dynamics ◽  
The Third

scholarly journals Large Nonlinear Optical Response in Carbon Nitride Nanotube

1999 ◽  
Vol 54 (5) ◽  
pp. 348-350
Author(s):  
Rui Hua Xie
Keyword(s):  
Nonlinear Optical ◽  
Carbon Nitride ◽  
Optical Response ◽  
Optical Nonlinearity ◽  
Nonlinear Optical Response ◽  
Third Order ◽  
Nitrogen Doped ◽  
The Third

The third-order optical nonlinearity of a nitrogen doped car-bon nanotube is studied. It is found that carbon nitride nano-tubes are potentially important in photonics owing to their large nonlinear optical response.

scholarly journals Physical origin of the third order nonlinear optical response of orthogonal pyrrolo-tetrathiafulvalene derivatives

2010 ◽  
Vol 97 (10) ◽  
pp. 101104 ◽  
Author(s):  
K. Iliopoulos ◽  
R. Czaplicki ◽  
H. El Ouazzani ◽  
J. Y. Balandier ◽  
M. Chas ◽  
...  
Keyword(s):  
Nonlinear Optical ◽  
Optical Response ◽  
Nonlinear Optical Response ◽  
Physical Origin ◽  
Third Order ◽  
The Third
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