|Recently compounds synthesized by Tschierske et al.  based on alkyl substituted 4-cyanoresorcinol 1,3 bisbenzoates with terephthlate based rod-like wings show a series of fascinating stable orthogonal smectic phases such as SmAPR, SmAPA and SmAPAX. In the latter, X is for an unknown polar antiferroelectric orthogonal smectic phase. In the seminar, I will discuss the electric field induced fascinating properties such as the optical biaxiality in some of these phases and show how the cells, incorporating bent-core materials in such phases, can be exploited for display and photonic devices. The nature of some of these phases will be clarified.
 C. Keith, M. Prehm, Y. P. Panarin, J. K. Vij, and C. Tschierske, Chem. Commun 46, 2010, 3702.