Title :
Nonlinear optical and electrooptical effects in 2-methyl-4-nitro-N-methylaniline (MNMA) crystals
Author :
Sutter, K. ; Bosshard, C. ; Ehrensperger, M. ; Günter, P. ; Twieg, R.J.
Author_Institution :
Inst. of Quantum Electron., Swiss Federal Inst. of Technol., Zurich, Switzerland
Abstract :
Single crystals of 2-methyl-4-nitro-N-methylaniline (MNMA) have been grown from the melt. The crystal structure was determined (orthorhombic, Pna2/sub I/ (2 mm), Z=4, a=17.788(6) AA, b=11.893(4) AA, c=3.907(2) AA). The refractive indexes n/sub a/ and n/sub c/ were measured between 500 and 700 nm (n/sub a/(633 nm)=2.148(10), n/sub c/(633 nm)=1.520(3)). The nonlinear optical susceptibilities coefficients r/sub 31/=8 pm/V and r/sub 33/=7.5 pm/V were determined. Most optical properties can be explained in terms of molecular orientation and polarizability.<>
Keywords :
crystal growth from melt; crystal structure; electro-optical effects; nonlinear optical susceptibility; nonlinear optics; organic compounds; refractive index; 2-methyl-4-nitro-N-methylaniline; 500 to 700 nm; MNMA; electrooptical effects; molecular orientation; nonlinear optical susceptibilities; polarizability; refractive indexes; Chirp modulation; Crystalline materials; Crystals; High speed optical techniques; Nonlinear optics; Optical materials; Optical pumping; Optical refraction; Optical variables control; Refractive index;
Journal_Title :
Quantum Electronics, IEEE Journal of
