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Metasurfaces Exert Control Over Darkness; Method Optimizes Mirror Optics Production (8/8/2023)

Metasurfaces Exert Control Over Darkness; Method Optimizes Mirror Optics Production

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OPTICS NEWSLETTER

The latest news, features, and product developments in optics and optical fabrication – brought to you by Photonics Media. Manage your Photonics Media membership at Photonics.com/subscribe.

Metasurfaces Exert Control Over Darkness
Researchers led by Federico Capasso at Harvard John A. Paulson School of Engineering and Applied Sciences have developed methods to exert control over points of darkness, rather than light, using metasurfaces.

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Kerr Combs Drive Optical Connections for Scalable Data Transfer
To surmount the bandwidth constraints and high energy costs that limit the performance and scalability of computing systems, researchers at Columbia Engineering, the Fu Foundation School of Engineering and Applied Science, developed a Kerr comb-driven, silicon photonic chip-based data communication link for data transfer.

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Mirror Manufacturing Technique Raises Precision, Reduces Production Time
Traditionally, high-precision components — for example, mirror optics — are mass-produced in a time-intensive and manufactory-like process and then individually characterized using complex measurement technology. As the demand for such components grows, manufacturing via conventional processes leads to enormous machine costs, longer processing times, and limitations in the transition to high-quality serial components. Researchers at the Fraunhofer Institute for Applied Optics and Precision Engineering IOF (Fraunhofer IOF) and nine additional Fraunhofer institutes have devised a production architecture called SWAP-IT.

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.: Featured Products & Services

Custom Microscopes and Optical Systems

Prior Scientific Inc.
Prior Scientific has developed OpenStand to offer a working platform to build OEM solutions and one-off customizations with excellent value for money and reduced development time. Whether developing new automation techniques and software or developing new imaging methods, you can quickly find that you need a microscope system tailored to your application.

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Reliable Image Quality Measurement

TRIOPTICS GmbH
ImageMaster HR 2 is the new MTF test station by TRIOPTICS. It is the worldwide standard for image quality testing of lenses for smartphones, surveillance cameras, and automotive camera modules. The accuracy of the measurement is traceable to international standards.

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Custom Precision Optics

LaCroix Precision Optics
Since 1947, three generations of family leadership have positioned LaCroix Precision Optics as the premier manufacturer of precision optics in America. LaCroix Precision Optics specializes in spherical lenses, aspheres, achromats, windows, wedges, prisms, and custom optical coatings.

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C-Flex Pivot Bearings-Metal Flexures

C-Flex Bearing Co. Inc.
Infinite life, no backlash, superior technology, environmentally friendly, metal flexures. Lubrication free, frictionless movement means the C-Flex pivot is ideal in applications where outgassing could contaminate optics. Many applications use C-Flex pivots where constant predictable spring rate and the need for immunity to problems of starting vs moving torque are solved.

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.:More News

Linear Waveguide Streamlines Directional Single-Photon Production

Researchers from the Institute of Optics of CSIC and the Institute of Photonic Sciences (ICFO, Spain) have developed and demonstrated an approach to generating single photons along well-defined directions. The advancement avoids the need for sophisticated 2D or 3D structures to achieve highly directional single-photon emission.

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Metasurface Spectrometer Points to On-Chip Integration

Researchers at Heriot-Watt University tailored and controlled dispersion using a single metasurface based on a multifoci metalens design. The researchers developed a compact, high-resolution spectrometer that could enable spectral analysis and information processing with an on-chip, integrated photonics platform. The researchers’ metalens design is based on wavelength and phase multiplexing, and it can simultaneously realize wavelength splitting and light focusing. The metasurface spectrometer can split and focus light beams of different wavelengths at predesigned positions on a focal plane, accurately mapping wavelength information into its focal points located on the same plane.

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Spatial Light Modulation Gauges How Lenses Slow Progress of Myopia

Myopia, or nearsightedness, is one of the most common ocular disorders worldwide and a leading cause of visual impairment in children. Although specialized eyeglass lenses have been clinically tested to treat myopia progression, an in-depth optical characterization of the lenses has not yet been performed. Researchers from the ZEISS Vision Science Lab at the University of Tübingen and the University of Murcia undertook a comprehensive characterization to investigate the properties of spectacle lenses designed to slow the progress of myopia. Results of the study could help increase the efficacy of future lens designs.

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Beamsplitter Benefits from Topological Antichiral Edge States

Recent research has investigated novel approaches to beam-splitting in the context of topological photonics. Several beam-splitting mechanisms have been proposed relying on different topological states such as chiral edge states, valley-locked edge states, and spin-polarized edge states. Chiral edge states are unidirectional photonic states ideal for constructing robust channels of a beamsplitter. Valley-locked edge states can be used to split beams similar to that of electronic spin, to split the beam into different directions. These topological beamsplitters offer unique advantages and can be used in different applications.

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.: Upcoming Webinars

Stigmatic Optical Imaging: The Past, Present, and Future
Tue, Aug 22, 2023 1:00 PM - 2:00 PM EDT
The exact equation to design a stigmatic lens has recently been found and extensively studied. This equation allows researchers to explore several stigmatic optical systems showing the systems share several properties. In this presentation, Rafael González-Acuña of Huawei Technologies reviews those properties, starting from the history of the problem in ancient Greece to its solution that was published in 2018. He reviews that solution step by step and explores the mathematical details. He also addresses the benefits, applications, and future possibilities of this equation.

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