High-reliability infrared broadband thin-film polarizing beam splitter with ZnSe compensation layers.

Thin-film polarizing beam splitters (PBSs) fulfill a pivotal role in laser beam splitting, modulation, shaping and isolation. In this study, a high-reliability infrared broadband thin-film PBS was developed. To correct for tensile stress in Ge/YbF multilayer coatings, ZnSe compensation layers were incorporated in the multilayer design.

Optimization of optical and structural properties of AlO/TiO nano-laminates deposited by atomic layer deposition for optical coating.

Optimizing the atomic layer deposition (ALD) process of films is particularly important in preparing multilayer interference films. In this work, a series of AlO/TiO nano-laminates with a fixed growth cycle ratio of 1:10 were deposited on Si and fused quartz substrates at 300 °C by ALD. The optical properties, crystallization behavior, surface appearance and microstructures of those laminated layers were systematically investigated by spectroscopic ellipsometry, spectrophotometry, X-ray diffraction, atomic force microscope and transmission electron microscopy.

Investigation of the localized surface plasmon resonance of Ag@SiO core-shell nanocubes and its application in high-performance blue organic light-emitting diodes.

A blue organic light-emitting diode (OLED) with silica-coated silver nanocubes (Ag@SiO NCs) inserted at the hole transporting layer/emission layer interface is reported. The localized surface plasmon resonance (LSPR) properties of the Ag@SiO NCs were characterized by the measured absorption spectra, stable-stated and transient photoluminescence, and calculated dipole radiation power. The results suggest that the Ag NCs significantly improved the radiation intensity of the nearby excitons due to their sharp corners and edges, but had less impact on the radiation rate of the excitons.

High-performance solution-processed white organic light-emitting diodes based on silica-coated silver nanocubes.

Solution-processed white organic light-emitting diodes (WOLEDs) with silica-coated silver nanocubes (Ag@SiO NCs) incorporated at the interface of a hole transporting layer and emission layer are studied. The concentration of Ag@SiO NCs is varied to investigate the effect of Ag@SiO NCs on the performances of WOLEDs. Owing to the sharp edges and corners, Ag NCs greatly improve the radiative rate and emission intensity of nearby blue excitons.

Broadband infrared beam splitter for spaceborne interferometric infrared sounder.

A broadband infrared beam splitter (BS) on ZnSe substrate used for the spaceborne interferometric infrared sounder (SIIRS) is studied in the spectral range of 4.44-15 μm. Both broadband antireflection coating and broadband beam-splitter coating in this BS are designed and tested.