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Optics Webinars
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Metrology for Polarization Optics
Measuring the performance of optical retarders and polarizers after purchase is important to verify that installation will not degrade system performance. Baur describes which parameters are...
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Rethinking Scratch-and-Dig Specifications
The scratch-and-dig specification, described in the MIL-PRF-13830B standard, has been the de facto method of controlling surface imperfections on optics for most components and systems since it was...
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Innovative Solutions for Overcoming the Challenges of Manufacturing Freeform Optics
Freeform optical lenses and conformal windows enable new concepts for optical system designs and allow fewer elements to be used, making the systems smaller, lighter, and more efficient. Based on...
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Defining and Tolerancing Freeform Surfaces for Manufacturing
The adoption of freeform optics by designers and manufacturers has increased in recent years. With the increase in flexibility, a freeform surface can incorporate a system and bring more...
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Expanding Options for the Design and Manufacture of Aspheres and Freeform Optics
The idea of employing higher-order surfaces in optical systems to improve performance has been around for decades. Designing and fabricating aspheric lenses in larger quantities and at a quality...
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Enabling the Revolution in Freeform Micro-Optics Through Collaboration
Freeform micro-optics have the capability to revolutionize industries. Utilizing the advantages of freeform optics in the small form factors of microlenses or microlens arrays is enabling...
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Ultrahigh-Precision Optical Surfaces: Fabrication Examples, Challenges, and Recent Approaches
High-precision lenses and mirrors for short wavelength light, including deep-UV (DUV) and x-ray, are manufactured by fully utilizing both traditional polishing techniques, which require empirical...
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The Effects of Coolant on Fixed Diamond Lapping Pads When Processing Hard Optics
What’s most important to your process when lapping hard optics? It may depend on different desired outcomes, such as achieving better surface quality, a higher removal rate, or clocking less...
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UV Fatigue and Laser-Induced Contamination of Optics
Laser-induced contamination is a key concern for ultraviolet (UV) laser systems. Contamination resulting from the environment or outgassing can significantly reduce performance or lead to system...
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Nanostructured, Ultrabroadband Antireflective Coatings for Glass and Polymers
The idea of employing higher-order surfaces in optical systems to improve performance has been around for decades. Designing and fabricating aspheric lenses in larger quantities and at a quality...
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Advanced Optical Design of Multichannel and Coherent Optics
Optical design concepts used to be “simple.” Designers either ran ray tracing for macroscopic optics or simulated very small domains rigorously. With the arrival of micro- and...
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Using Ion Beam Machining to Increase Productivity When Manufacturing High-End Optics
Ion beam figuring has a long history in the manufacture of classical, high-end optical components. Demanding telescopic or lithographic optics have traditionally been enabled through deterministic...
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Overcoming the Environmental Durability Challenges of Optical Coatings
The optical performance of optical coatings is only half of the picture. A coating that is perfectly manufactured to meet its optical specifications is useless unless it also meets the application's...
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Assessment of Image Quality for Visual Systems
The determination of image quality is a multifaceted problem, dependent upon illumination, optical system construction, and the image sensor. When the optical system is used in conjunction with the...
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Delivering Flat Optics Solutions From Design to Mass Production
Metaoptics is a flat optics technology that uses an array of subwavelength nanostructures to bend and steer light. A typical metalens can use an array of sub-100-nm-diameter pillars to implement the...
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Challenges in Designing and Building Optical Systems for Space
Hardware is hard, optics hardware is harder, and optics hardware in space is the hardest of them all. When designing systems for space, one must account for all the standard specifications of a...
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The Continuing Evolution of Multispectral Filter Arrays for Earth Observation
The capabilities of multispectral filter arrays for Earth observation activities from space have changed significantly in the past 40 years. These capabilities have expanded from an initial offering...
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Light-Weighting Optical Systems for Optimal Size, Weight, and Performance
Multiple industries are now requiring high performance from their optical systems while also minimizing the size, weight, and power of system designs. To meet these engineering challenges, a process...
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The Miniaturization of Spectral Selection and Control Components
Beginning with telecommunications needs, and more recently with modern home-diagnostics and biosensor applications, optical devices have been shrinking while their application space is expanding....
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Simulating Metamaterials with COMSOL Multiphysics
®
Metamaterials and metasurfaces have received an increasing amount of interest in academia and industry over the past twenty years. This is because specifically designed metamaterials can control...
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Photonics Spectra
Conference 2023: January 9-12
Photonics Media will host its third annual Photonics Spectra Conference Jan. 9-12. The virtual event will comprise four technology tracks — Lasers, Optics, Test and Measurement, and Photonic...
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High-Power Diode Laser Modules for Manufacturing and OEM Integration
High-power diode lasers have progressed significantly since their first appearance in the market. Today, these lasers are able to utilize high power levels and high-percentage electro-optical...
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Fused Silica in Radiation Environments
An increasingly wide range of applications need to be able to function in harsh environments, not only on space missions but also here on Earth, in particle detectors, for example. It is important to...
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Low-Cost Compact Optical Spectroscopy and Novel Spectroscopic Algorithms
Real-time monitoring of nanoparticle delivery within biological models is essential for the optimization of nanoparticle-mediated therapies, but few techniques exist to conveniently monitor...
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The Laser-Driven Light Source: Theory, Practice, and Applications
Numerous applications require broadband light sources that have stable output, high brightness, stable spectral composition, and a high degree of spatial coherence. The traditional broadband light...
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May 2024
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