Excited-state absorption and third-order optical nonlinearities in symmetric ?-electron organic molecules

1996 ◽  
Vol 63 (1) ◽  
pp. 47-50 ◽  
Author(s):  
G. R. J. Williams
Keyword(s):  
Excited State ◽  
Organic Molecules ◽  
Excited State Absorption ◽  
Optical Nonlinearities ◽  
Third Order

scholarly journals Excited-state enhancement of third-order optical nonlinearities: photodynamics and characterization

2010 ◽  
Vol 18 (26) ◽  
pp. 26843 ◽  
Author(s):  
Bing Gu ◽  
Kai Lou ◽  
Jing Chen ◽  
Yongnan Li ◽  
Hui-Tian Wang ◽  
...  
Keyword(s):  
Excited State ◽  
Optical Nonlinearities ◽  
Third Order

Structural parameters versus third-order optical susceptibility of Zinc porphyrin molecules

2021 ◽  
Author(s):  
Amina Yasin ◽  
Vijayakumar S. Nair ◽  
Mohd Hasbi Ab Rahim ◽  
Yoshihisa Yamaoka ◽  
Chandra S Yelleswarapu ◽  
...  
Keyword(s):  
Excited State ◽  
Nonlinear Optical ◽  
Structural Parameters ◽  
Excited State Absorption ◽  
Structure Property ◽  
Third Order ◽  
Promising Candidate ◽  
Zinc Porphyrin ◽  
Optical Susceptibility ◽  
Structure Property Relationship

To deepen the structure-property relationship, and thereby developing improved third-order nonlinear optical (NLO) molecular materials, porphyrin is a promising candidate because of its strong excited state absorption, high triplet yields,...

Ultrafast Excited-State Dynamics and Dispersion Studies of Third-Order Optical Nonlinearities in Novel Corroles

2012 ◽  
Vol 116 (33) ◽  
pp. 17828-17837 ◽  
Author(s):  
P. T. Anusha ◽  
Debasis Swain ◽  
S. Hamad ◽  
L. Giribabu ◽  
T. Shuvan Prashant ◽  
...  
Keyword(s):  
Excited State ◽  
Optical Nonlinearities ◽  
Third Order ◽  
Excited State Dynamics

Excited State Absorption And Optical Nonlinearities Of Metallophthalocyanines And Naphthalocyanines In Solution

2005 ◽  
Author(s):  
J.W. Perry ◽  
L.R. Khundkar ◽  
D.R. Coulter ◽  
T.H. Wei ◽  
E.W. Van Stryland ◽  
...  
Keyword(s):  
Excited State ◽  
Excited State Absorption ◽  
Optical Nonlinearities

scholarly journals Highly efficient THz four-wave mixing in doped silicon

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Nils Dessmann ◽  
Nguyen H. Le ◽  
Viktoria Eless ◽  
Steven Chick ◽  
Kamyar Saeedi ◽  
...  
Keyword(s):  
Four Wave Mixing ◽  
Wave Mixing ◽  
Optical Nonlinearities ◽  
Third Order ◽  
Picosecond Pulses ◽  
Light Pulses ◽  
A Value ◽  
Doped Silicon ◽  
Perturbative Regime ◽  
Silicon Doped

AbstractThird-order non-linearities are important because they allow control over light pulses in ubiquitous high-quality centro-symmetric materials like silicon and silica. Degenerate four-wave mixing provides a direct measure of the third-order non-linear sheet susceptibility χ(3)L (where L represents the material thickness) as well as technological possibilities such as optically gated detection and emission of photons. Using picosecond pulses from a free electron laser, we show that silicon doped with P or Bi has a value of χ(3)L in the THz domain that is higher than that reported for any other material in any wavelength band. The immediate implication of our results is the efficient generation of intense coherent THz light via upconversion (also a χ(3) process), and they open the door to exploitation of non-degenerate mixing and optical nonlinearities beyond the perturbative regime.

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