Abstract: An optical system that includes a cholesteric glassy liquid crystal film doped with a dye and configured to preferentially absorb light of a first handedness, such as left-hand circularly polarized (LCP) light, but pass light of the opposite handedness, such a right-hand circularly polarized (RCP) light. Adding an anti-reflection coating can further increase the transmission-to-reflection ratio.

Abstract: Systems and methods for timing read operations with a memory device are provided. A timing signal from the memory device is received at a gating circuit. The timing signal is passed through as a filtered timing signal during a gating window. The gating circuit is configured to open the gating window based on a control signal. The gating circuit is further configured to close the gating window based on a first edge of the timing signal. The first edge is determined based on a counter that is triggered to begin counting by the control signal. At a timing control circuit, the control signal is generated based on i) a count signal from the counter, and ii) a second edge of the timing signal that precedes the first edge in time.

Abstract: The subject matter disclosed herein generally relates to organic light-emitting materials and methods for their preparation and use. Also, devices involve organic light emitting materials are disclosed.

Abstract: A glassy chiral-nematic liquid crystal composition includes a compound having the structural formula wherein each N represents a nematic group connected to the 1,3,5-benzenetricarbonyl central moiety by a carboxylic ester linkage and Ch represents a chiral group connected to the central moiety by a carboxylic ester linkage. An optical device is formed from at least one of the glassy chiral-nematic liquid crystal compositions.

Abstract: Oligomer compositions include conjugated oligomers having fused fluorene residues flanking an aromatic group. Synthetic methods include reacting fused fluorene residues with aromatic compounds.