Degenerate nonlinear absorption and optical power limiting properties of asymmetrically substituted stilbenoid chromophoresElectronic supplementary information (ESI) available: Experimental details. See http://www.rsc.org/suppdata/jm/b3/b313185h/

2004 ◽  
Vol 14 (6) ◽  
pp. 982 ◽  
Author(s):  
Tzu-Chau Lin ◽  
Guang S. He ◽  
Paras N. Prasad ◽  
Loon-Seng Tan
Keyword(s):  
Nonlinear Absorption ◽  
Optical Power ◽  
Supplementary Information ◽  
Optical Power Limiting

scholarly journals NONLINEAR OPTICAL PROPERTIES AND OPTICAL POWER LIMITING OF THE PREPARED POLYMER BLEND POLY (3HT- Co - Th) - PM FILMS

2021 ◽  
Vol 5 (1) ◽  
pp. 1-10
Author(s):  
Imad Al-Deen Hussein Ali Al-Saidi ◽  
Hussein Falih Hussein ◽  
Numan Sleem Hashim
Keyword(s):  
Refractive Index ◽  
Optical Properties ◽  
Absorption Coefficient ◽  
Polymer Blend ◽  
Nonlinear Absorption ◽  
Nonlinear Refractive Index ◽  
Nonlinear Optical ◽  
Optical Power ◽  
Copolymer Poly ◽  
Optical Power Limiting

Poly (3 - Hexylthiophene - Co - Thiophene) copolymer was prepared by using the addition polymerization method. The Nonlinear optical properties and the behavior of the optical power limiting of the prepared polymer blend poly (3HT- Co - Th) - PMMA films were studied by using the z - scan technique for different weight ratios of the copolymer poly (3HT- Co - Th). In the present work, a continuous wave (CW) diode - pumped solid - state laser (DPSSL) of wavelengths 532 nm was used for the irradiation of the prepared film samples. The nonlinear optical parameters such as, the nonlinear refractive index (n2), the nonlinear absorption coefficient (β), and the      third - order - nonlinear optical susceptibility (χ (3)) of the polymer blend poly (3HT- Co - Th) - PMMA films were determined for different weight ratios of the copolymer poly (3HT- Co - Th). It is observed that the polymer blend poly (3HT - Co - Th) - PMMA films exhibit saturable absorption (SA) and self - defocusing effects, and this gives an indication that both, the nonlinear refractive index (n2) and the nonlinear absorption coefficient (β), have negative values. The obtained results indicate that the prepared polymer blend poly (3HT - Co - Th) - PMMA films are promising materials and can be considered as suitable materials for different optical and electronic applications.

ALL-OPTICAL POWER LIMITING

2000 ◽  
Vol 09 (03) ◽  
pp. 343-364 ◽  
Author(s):  
M. POTASEK ◽  
S. KIM ◽  
D. MCLAUGHLIN
Keyword(s):  
Saturable Absorber ◽  
Cross Sections ◽  
Nonlinear Absorption ◽  
Numerical Technique ◽  
Beam Propagation Method ◽  
Optical Power ◽  
Kerr Nonlinearity ◽  
Decay Rates ◽  
Optical Power Limiting ◽  
Reverse Saturable Absorber

We derived a numerical technique for the propagation of the electromagnetic field in a five-level reverse saturable absorber including the nonlinear Kerr effect and dispersion. The numerical method combines the split step beam propagation method and the Crank–Nicholson method. Using our numerical technique we observed new behavior, not previously observed nor predicted to our knowledge, including the temporal splitting caused by the dynamics of the carrier densities in a reverse saturable absorber and the enhancement of absorption due to the Kerr nonlinearity. Our numerical calculation enables the prediction of nonlinear absorption using material parameters such as the absorption cross-sections and decay rates. We can also investigate the interplay between the optical pulse properties such as the temporal pulse width, spatial radius, incident energy and the carrier dynamics and nonlinear absorption of the reverse saturable absorber.

Quasi-resonant nonlinear absorption for optical power limiting: solgel-processed Er^3+-doped multicomponent silica glass

2000 ◽  
Vol 39 (15) ◽  
pp. 2433 ◽  
Author(s):  
Glauco S. Maciel ◽  
Abani Biswas ◽  
Christopher S. Friend ◽  
Paras N. Prasad
Keyword(s):  
Nonlinear Absorption ◽  
Silica Glass ◽  
Optical Power ◽  
Optical Power Limiting

Silole-containing linear and hyperbranched polymers: synthesis, thermal stability, light emission, nano-dimensional aggregation, and optical power limiting

2003 ◽  
Vol 196 (1) ◽  
pp. 289-300 ◽  
Author(s):  
Jacky Wing Yip Lam ◽  
Junwu Chen ◽  
Charles Chi Wang Law ◽  
Han Peng ◽  
Zhiliang Xie ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Light Emission ◽  
Optical Power ◽  
Hyperbranched Polymers ◽  
Optical Power Limiting

Optical power limiting of fullerenes

1994 ◽  
Vol 64 (21) ◽  
pp. 2785-2787 ◽  
Author(s):  
J. E. Wray ◽  
K. C. Liu ◽  
C. H. Chen ◽  
W. R. Garrett ◽  
M. G. Payne ◽  
...  
Keyword(s):  
Optical Power ◽  
Optical Power Limiting

Efficient hybrid materials for optical power limiting at telecommunication wavelengths

2014 ◽  
Vol 2 (26) ◽  
pp. 5105 ◽  
Author(s):  
Denis Château ◽  
Quentin Bellier ◽  
Frederic Chaput ◽  
Patrick Feneyrou ◽  
Gérard Berginc ◽  
...  
Keyword(s):  
Hybrid Materials ◽  
Optical Power ◽  
Optical Power Limiting

Optical power limiting and stabilization based on a novel polymer compound

1998 ◽  
Vol 34 (12) ◽  
pp. 2279-2285 ◽  
Author(s):  
G.S. He ◽  
C. Weder ◽  
P. Smith ◽  
P.N. Prasad
Keyword(s):  
Optical Power ◽  
Polymer Compound ◽  
Optical Power Limiting
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