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Fourth-Generation Optics Surmount the Limitations of Planar Optics

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Planar 4G optics offer increased control over broadband light with micrometer-thin, clear, and haze-free films switchable between different optical states.

NELSON TABIRYAN, BEAM ENGINEERING FOR ADVANCED MEASUREMENTS CO.

A micrometer-thin film coated over a flat glass substrate can deflect a light beam in the same way as a prism. This film can be fabricated to be structurally smooth, at a molecular level, and as clear and haze-free as a polished window of fused silica or sapphire. Courtesy of BEAM Engineering for Advanced Measurements Co. With an even wider transmission spectrum than classic optical windows, these flat prisms and lenses — as well as optical vortices, axicons, patterned phase plates, beam shapers, and numerous custom optics — find use for a variety of demanding...Read full article

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    Published: November 2024
    Glossary
    optical materials
    Optical materials refer to substances or compounds specifically chosen for their optical properties and used in the fabrication of optical components and systems. These materials are characterized by their ability to interact with light in a controlled manner, enabling applications such as transmission, reflection, refraction, absorption, and emission of light. Optical materials play a crucial role in the design and performance of optical systems across various industries, including...
    circularly polarized light
    A light beam whose electric vectors can be broken into two perpendicular elements that have equal amplitudes and that differ in phase by l/4 wavelength.
    polarization
    Polarization refers to the orientation of oscillations in a transverse wave, such as light waves, radio waves, or other electromagnetic waves. In simpler terms, it describes the direction in which the electric field vector of a wave vibrates. Understanding polarization is important in various fields, including optics, telecommunications, and physics. Key points about polarization: Transverse waves: Polarization is a concept associated with transverse waves, where the oscillations occur...
    diffraction
    Diffraction is a fundamental wave phenomenon that occurs when a wave encounters an obstacle or aperture, causing the wave to bend around the edges and spread out. This effect is most commonly observed with light waves, but it can also occur with other types of waves, such as sound waves, water waves, and even matter waves in quantum mechanics. Wave interaction: Diffraction occurs when a wave encounters an obstacle (e.g., an edge or slit) or a series of obstacles, such as a diffraction...
    chiral
    Description of a particle that cannot be superimposed on its mirror image.
    FeaturesNelson TabiryanOpticsFlat Opticsplanar opticsliquid crystalsLCDsoptical componentswaveplates4G OpticsPrismsBEAM Engineering Co.Materialsoptical materialscircularly polarized lightpolarizationdiffractiondiffractive waveplateschiralAnna TabiryanBragg gratingsgratingsaerospace/defensewave plates

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