Title :
Optical Kerr shutter performance of a solution of organic nonlinear optical material
Author :
Kanbara, H. ; Kobayashi, Hideki ; Kubodera, Ken´ichi
Author_Institution :
Opto-Electron. Lab., NTT, Kanagawa, Japan
fDate :
6/1/1989 12:00:00 AM
Abstract :
An optical Kerr shutter with much higher efficiency than the conventional CS/sub 2/ liquid is demonstrated, utilizing a solution of pi -conjugated monomer material. Third-order nonlinear optical susceptibility chi /sup (3)/ of the solution is evaluated by the efficiency of the Kerr shutter operation. The chi /sup (3)/ value of the solution depends on the molecular density, the molecular orientation behavior, and the dielectric constant of the solvent. To utilize these effects most efficiently, 4´-dimethylamino-N-methyl-4-stilbazolium methylsulfate is dissolved in formamide to the saturation concentration. This results in chi /sup (3)/=3.0*10/sup -12/ esu and a Kerr shutter transmission of four times that of CS/sub 2/.<>
Keywords :
molecular orientation; nonlinear optical susceptibility; optical Kerr effect; optical elements; organic compounds; 4´-dimethylamino-N-methyl-4-stilbazolium methylsulfate; CS/sub 2/; Kerr shutter transmission; dielectric constant; formamide; molecular density; molecular orientation behavior; optical Kerr shutter; optical Kerr shutter performance efficiency; organic nonlinear optical material; pi -conjugated monomer material; saturation concentration; solvent; third-order nonlinear optical susceptibility; Laser beams; Nonlinear optics; Optical harmonic generation; Optical materials; Optical mixing; Optical refraction; Optical saturation; Optical variables control; Organic materials; Probes;
Journal_Title :
Photonics Technology Letters, IEEE
