Nonlinear optical processing with amorphous silicon, ferrolectric liquid-crystal spatial light modulators

1990 ◽  
Author(s):  
Nicholas P. Caviris ◽  
John E. Gray ◽  
Sonlinh Phuvan ◽  
Theodore R. Rice
Keyword(s):  
Liquid Crystal ◽  
Amorphous Silicon ◽  
Nonlinear Optical ◽  
Spatial Light Modulators ◽  
Optical Processing ◽  
Light Modulators

scholarly journals Study The Influence of Doping Electric and Magnetic Nanoparticles on The Nonlinear Optical Properties of Nematic Liquid Crystals

2020 ◽  
Vol 18 (47) ◽  
pp. 91-99
Author(s):  
Aseel Ibrahim ◽  
Rawa Ibrahim ◽  
Ali Abdullah ◽  
Ali Baki ◽  
Ghaidaa Khudair ◽  
...  
Keyword(s):  
Optical Properties ◽  
Liquid Crystal ◽  
Magnetic Nanoparticles ◽  
Nonlinear Optical ◽  
Incident Light ◽  
Nonlinear Optical Properties ◽  
Spatial Light Modulators ◽  
Light Modulators ◽  
The Impact ◽  
Composite Samples

The nonlinear optical properties response of nematic liquid crystal (6CHBT) and the impact of doping with two kinds of nanoparticles; Fe3O4 magnetic nanoparticles and SbSI ferroelectric nanoparticles have been studied using the non-linear dynamic method through z-scan measurement technique. This was achieved utilizing CW He-Ne laser. The pure LC and magnetic LC nanoparticle composite samples had a maximum absorption while the ferroelectric LC nanoparticle composite had a minimum absorption of the incident light. The nonlinear refractive index was positive for the pure LC and the rod-like ferronematic LC composite samples, while it was negative for the ferroelectric LC composite. The studying of the nonlinear optical properties of these types of liquid will be very helpful in the field of liquid crystal applications like display screen and spatial light modulators.          

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