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The article reports on the production of the most compact photonic-crystal (PC) demultiplexer by using the three dispersive properties of photonic crystals; namely, the super-prism effect, negative diffraction and negative refraction. Using the super-prism effect in photonic crystal (PC), the basic demultiplexing function can be obtained. Super-prism effect is based on the difference between the dispersive properties of the PC and the incident region for wavelength demultiplexing.

The article describes the industrial applications of micro-optics technology. Designer of micro-optic components and systems use a combination of commercial and proprietary design and modeling programs. Examples of major progress can be found in the design of beam shaping micro-optics technology like ultraviolet embossing, injection molding and hot embossing for mass production of surface-relief diffractive optical elements.

Focuses on diffractive-optics techniques. Changing capabilities; Alignment applications. INSET: Common diffractive-optics applications.

Focuses on diffractive optics. Fabrication methods; Diffractive optical elements in quantity; Design methods; Applications. INSETS: Workshops teach design and manufacture of diffractive optics.;Photolithography for DOEs leverages microelectronics...

Reports that researchers at the Electronic Instrumentation Laboratory at the Delft University of Technology in Netherlands have developed a novel technique for light scanning by use of viscoelastic-based deformable phase-diffraction gratings. Angular alteration of diffraction orders; Fabrication of master molds using rectangular or triangular grating element profile.

Presents a case study for a hole-drilling application, highlighting the evolution of diffractive beamsplitters, from devices that produced a one-dimensional line of beams to a complex power distribution of a two-dimensionally array of beams. Overview of diffractive beamsplitetrs; Details of the surface topography of the grating; Ways to accomplish the fabrication of microstructure in the surface of the material; Applications of phase gratings.

The article focuses on a study of combining a patterned defractive optical elements (DOE). It notes from a discovery of researchers, Stefan Bernet and Monika Ritsch-Marte on combining the patterned DOE to produce a moiré effect of variable focal length and have seen with a practical application. Furthermore, it explores on the approaches that the researchers used in developing optics that has variable optical power.

Discusses the use of a silicon diffractive optical element by engineers at the R&D Center of Oki Electric Industry Co. of Tokyo, Japan. Control of optical wavefronts through a clever design of diffractive optics; Solution to the cost and optical-power losses that come from collimating light through aspherical lenses; Failure of the technology to meet performance demands or market acceptance; Selection of a silicon diffractive element for high diffraction efficiency.