Smectic A and C* liquid crystal light valves

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Adaptive Holography in Liquid Crystal Light-Valves

By performing two-wave mixing experiments in a liquid crystal light-valve, optical beam amplification is obtained as a strongly resonant process to which a narrow frequency bandwidth is associated. This property is exploited to realize adaptive holographic interferometric systems able to efficiently detect displacements as small as fraction of picometers. Pressure radiation induced deformations...

متن کامل

Liquid crystal light valves for slow light and applications

The large dispersive properties of wave mixing in liquid crystal light-valves allow obtaining fast and slow light with tunable group velocities. A slow light interferometer is shown by using this interaction.

متن کامل

Nanostructure of Edge Dislocations in a Smectic-C* Liquid Crystal.

We report on the first direct nanoscale imaging of elementary edge dislocations in a thermotropic smectic-C* liquid crystal with the Burgers vector equal to one smectic layer spacing d. We find two different types of dislocation profiles. In the dislocation of type A, the layers deformations lack mirror symmetry with respect to the plane perpendicular to the Burgers vector; the dislocation core...

متن کامل

Smectic-A and smectic-C phases and phase transitions in 8S5 liquid-crystal-aerosil gels.

High-resolution x-ray scattering studies of the nonpolar thermotropic liquid crystal 4-n-pentylphenylthiol-4'-n-octyloxybenzoate (8S5) in aerosil gel nanonetworks reveal that the aerosil-induced disorder significantly alters both the nematic to smectic-A and smectic-A to smectic-C phase transitions. The limiting 8S5 smectic-A correlation length follows a power-law dependence on the aerosil dens...

متن کامل

Critical heat capacity at the smectic A ± smectic C transition in a partially ̄ uorinated liquid crystal

A high resolution a.c. calorimetric study of a phenyl pyrimidine derivative with one alkyl and one per ̄ uorinated end group shows that the excess heat capacity associated with the smectic A± smectic C transition exhibits critical ̄ uctuation behaviour that is consistent with the three-dimensional XY universality class. This is in contrast to the usual mean-® eld SmA± SmC behaviour and the near t...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal de Physique III

سال: 1993

ISSN: 1155-4320,1286-4897

DOI: 10.1051/jp3:1993207