Excited state enhancement of non-linear optical response in the push–pull imide and diimide chromophores

2006 ◽  
Vol 417 (4-6) ◽  
pp. 293-296 ◽  
Author(s):  
Shahar Keinan ◽  
Mark A. Ratner ◽  
Tobin J. Marks
Keyword(s):  
Excited State ◽  
Optical Response ◽  
Non Linear ◽  
Linear Optical

Substantial Non-linear Optical Response of New Polyads Based on Ru and Os Complexes of Modified Terpyridines

2001 ◽  
Vol 105 (44) ◽  
pp. 10797-10804 ◽  
Author(s):  
Maria Konstantaki ◽  
Emmanuel Koudoumas ◽  
Stelios Couris ◽  
Philippe Lainé ◽  
Edmond Amouyal ◽  
...  
Keyword(s):  
Optical Response ◽  
Non Linear ◽  
Linear Optical

scholarly journals Tunable Non-linear Refraction Properties and Ultrafast Excited State Dynamics of Dicyanomethylene Dihydrofuran Derivative

2020 ◽  
Vol 8 ◽  
Author(s):  
Linpo Yang ◽  
Zhongguo Li ◽  
Taihui Wei ◽  
Liming Zhou ◽  
Feng Li ◽  
...  
Keyword(s):  
Excited State ◽  
Transient Absorption ◽  
Refraction Index ◽  
Fast Response ◽  
Transient Absorption Spectroscopy ◽  
Relaxation Dynamics ◽  
Substantial Impact ◽  
Femtosecond Transient Absorption ◽  
Non Linear ◽  
Linear Optical

The third order non-linear optical response of a dicyanomethylene dihydrofuran compound (DCDHF-2V) was investigated using a Z-scan technique in picosecond and nanosecond time regimes. The results show that DCDHF-2V has excellent excited state non-linear refraction properties on both time regimes, and the non-linear refraction index is also solvent-dependent in the nanosecond regime. The excited state relaxation dynamics of DCDHF-2V were demystified via femtosecond transient absorption spectroscopy. The TA spectra reveal that the solvent viscosities have a substantial impact on the excited state relaxation of DCDHF-2V. The exotic photophysical phenomena in DCDHF-2V reported herein can shed new light on future development of small organic non-linear optical materials with large non-linear coefficients and fast response.

scholarly journals Time-resolved non-linear optical response and photo-induced carriers trapping in glassy semiconductors

2020 ◽  
Vol 1461 ◽  
pp. 012139
Author(s):  
E Romanova ◽  
A Afanasiev ◽  
A Velmuzhov ◽  
M Sukhanov ◽  
Yu Kuzyutkina ◽  
...  
Keyword(s):  
Optical Response ◽  
Time Resolved ◽  
Non Linear ◽  
Linear Optical

Ultrafast non-linear optical response and acoustic phonon generation in poly (alkoxy-thiophene) film with regioregular structure

1994 ◽  
Vol 220 (1-2) ◽  
pp. 64-69 ◽  
Author(s):  
M. Nisoli ◽  
V. Pruneri ◽  
S. De Silvestri ◽  
V. Magni ◽  
A.M. Gallazzi ◽  
...  
Keyword(s):  
Acoustic Phonon ◽  
Optical Response ◽  
Phonon Generation ◽  
Non Linear ◽  
Linear Optical
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