Optical isotropy and iridescence in a smectic 'blue phase'

Article Abstract:

A liquid crystal smectic blue phase formed from a two-component mixture containing a chiral monomer and a 'twin' containing two repeat unit of the first molecule connected by a linear hydrocarbon spacer is reported. The new phase spontaneously exhibits an optically isotropic but uniformly iridescent color and automatically acquires spherical symmetry, so that the associated photonic bad gap maintains the same symmetry despite the local liquid crystalline order.

Observations, Iridescence, Structure

---

Routing of antisotropic spatial solitons and modulational instability in liquid crystals

Article Abstract:

The study reports the results of an experimental and theoretical investigation of voltage-controlled 'wake-off' and steering of self-localized light in nematic liquid crystals. It concluded that the propagation directions of individual spatial solutions can be tuned by several degrees, and an array of direction-tunable solitions can be generated by modulation instability.

Solitons

---

Liquid crystal ' blue phases' with a wide temperature range

Article Abstract:

The 'Blue phases' are highly fluid, self-assembled, three-dimensional cubic defect structures that exist over narrow temperature ranges in liquid crystal. Blue phases are considered to be examples of photonic crystals with a potential for many applications.

Photonics

Similar abstracts:

• Abstracts: Episodic fresh surface waters in the Eocene Arctic Ocean. The early Miocene onset of a ventilated circulation regime in the Arctic Ocean
• Abstracts: Four years on, no transgenes found in Mexican maize. Recruitment of entomopathogenic nematodes by insect-damaged maize roots
• Abstracts: From science in art to the art of science. The politics of mapping. Stamping his authority
• Abstracts: The Role of Immigration in the Decline of an Isolated Migratory Bird Population. Conspecific Attraction and the Conservation of Territorial Songbirds
• Abstracts: A young source of optical emission from distant radio galaxies. A large population of galaxies 9 to 12 billion years back in the history of the Universe

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.