In-plane alignment of noncentrosymmetric molecules by oblique-incidence molecular beam deposition

Abstract

Position sensitive, continuous wavelength tunable laser based on photopolymerizable cholesteric liquid crystals with an in-plane helix alignment Appl. Phys. Lett. 94, 093306 (2009); 10.1063/1.3089846Collisional orientation of the benzene molecular plane in supersonic seeded expansions, probed by infrared polarized laser absorption spectroscopy and by molecular beam scattering

Natural Formation of Nanostructures: From Fundamentals in Metal Heteroepitaxy to Applications in Optics and Biomaterials Science

“…11,165 For dipolar molecules, this phenomenon might not only result in a structural anisotropy but even in an alignment of the noncentrosymmetric species. [166][167][168][169][170][171] As a result, such organic thin films promise to open new frontiers for realizing linear and nonlinear optical devices.…”

“…The problem of thermal and mechanical stability can be mastered by hydrogen bonds between organic molecules. [166][167][168][169]171 These hydrogen bonds can be broken for the evaporation of appropriate molecules, i.e. the molecules have to be ultrahigh-vacuum-compatible and have to be capable of molecular beam formation.…”

“…By a careful analysis of the film thickness, as is performed by different in situ and ex situ techniques, 167 the error bars are reduced, resulting in a more precise determination of d 333 . 168 Figure 55 shows that the substitution of the glass substrate by fused silica has almost no influence on the nonlinear optical coefficient d 333 . This indicates that a possible grovelike microstructure of the glass substrate cannot be responsible for the molecule alignment.…”