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MATERIALS, COATINGS WHITE PAPERS
High-Volume, Cost-Effective Uniform Deposition for Flat and Curved Optical SurfacesTo achieve thin film uniformity on flat surfaces, nearly every conventional physical vapor deposition (PVD) method requires masking, complex motion, or both. For curved surfaces, none of these methods are capable of delivering similar uniformities, which severely limits the opportunities for curved optics in real-world applications. A novel technology called inverted cylindrical magnetron (ICM) sputtering offers a viable method for achieving thickness uniformity on both flat and curved...
Fabricating Low Loss GeO2 Thin Films for Planar Waveguides Such as Photonic Integrated CircuitsHigh quality GeO2 thin films that exhibit low loss and low surface roughness were produced by Intlvac’s Nanochrome IV PARMS system, proving that ion assisted AC dual sputtering is an effective fabrication technique. This is highly applicable to...
Manufacturing Considerations for Tolerancing AspheresAs aspheres become more prevalent in optical systems, it is important for lens designers to consider the various tolerances when designing an aspheric lens. The following is provided from the manufacturer's perspective on important tolerances to...
IR Filters for Gas AnalysisThin film filters specially designed for infrared applications ranging from environmental monitoring, thermal imaging, medical, and power distribution. We offer high transmission, narrow and wide passbands, high rejection outside the passband, and...
Dispelling the Myths About Laminated FiltersThere is a common belief that there is no longer a need for traditional bandpass optical filters. While this may be true in some cases, not all laminated filters are created equal. In this paper we will illustrate the advantages and disadvantages of...
UV Bandpass Filters for SterilizationUV light at 222 nm is capable of sterilization without harming human skin, making it a safe and effective technology to combat bacteria and viruses, including COVID-19. Optical filters can be designed to transmit the desired UV frequency while...
LIGHTENING THE LOAD: How Photonics is Reducing our Environmental ImpactFour companies from the Luminate startup accelerator in Rochester, N.Y. are making major contributions to sustainability initiatives with emerging optics, photonics, and imaging (OPI) technologies. Their work is driving energy savings and better...
Mid-IR Dispersive MirrorsDispersive mirrors in Mid-IR (1 – 6 µm) range could finally substantially aid the combination of various bulk materials, such as semiconductors (Si, Ge, GaAs) and dielectrics (fluorides, sapphire, YAG) as the straightforward means to compensate...
Identifying Thermally Activated Delayed Fluorescence using a SpectrofluorometerTADF was first observed in 1924 by Francis Perrin. In 2012 it received a resurgence in attention when Professor Chihaya Adachi and colleagues at Kyushu University used the TADF mechanism to harvest triplet excitons in organic light emitting diodes...
Hybrid Gain Flattening Filters in Optical Fiber AmplifiersIridian Spectral Technologies has developed what is referred to as a Hybrid GFF, which combines the functionality of both a WDM and the GFF on one component. Specifically, a Hybrid GFF can block the pump laser from light in the range of...
Laser Marking and Coding Made EasyIn the packaging industry, new marks, codes and packaging material requirements are driving manufacturers to seek marking and coding solutions with flexible and adaptable performance. This guide features a complete marking and coding solution for...
What Are The Main Applications Of Optical Coating?We provide you with a detailed analysis and introduction to the application of Optical Coating in your daily life.
Building a DIY Atomic Force MicroscopeAtomic force microscopes (AFM) are often seen as out of reach for many scientists with limited budgets. But they are useful and versatile tools for characterizing surfaces, mapping out morphology, and studying the behavior of tiny structures that...
Solutions for Fiber Optic ApplicationsHigh temperature polymer coating and sheathing products protect and support the latest fiber optic technology.
5 Most Common Mistakes in Designing Precision Super Hard ComponentsOver nearly four decades, IRD has been manufacturing precision optical and non-optical components in super hard materials. Roughly 80% of the designs have benefited from IRD’s proprietary Design for Manufacturability (DFM) Review. During these...
How Much Will an Optical Filter Cost?Filters are a critical element in the design of most optical systems. However, optimizing the trade-off between cost and performance isn’t obvious. With nearly a half century of experience in the business, Andover Corporation has a few tips to help...
Identifying Thermally Activated Delayed Fluorescence (TADF)OLEDs have become one of the most popular display types for high-end televisions and smartphones due to their superior contrast ratios and lower power consumptions than conventional LCD displays. A new generation of OLED utilising thermally...
Improving Additive Manufacturing with Accurate Surface MetrologyStandard manufacturing formative techniques (e.g., molding, injecting, casting, stamping, forging) and subtractive processes (e.g., CNC milling and turning, drilling, cutting) are being challenged by new technologies, such as additive manufacturing,...
High-Resolution Chemical Imaging with Tapping AFM-IRWhere the spatial resolution of conventional bulk IR spectroscopy is limited by diffraction to ~3-10 µm, atomic force microscopy (AFM) provides a nanoscale topographic map of a sample surface. However, AFM has been unable traditionally to chemically...
7 Steps to Choosing the Correct Optical Mirror or WindowIn addition to a good understanding of your application, carefully defining your requirements can save manufacturing time, which translates to reduced costs. In this paper, learn the important factors to consider when designing the ideal optic for...
Electroluminescence and Photoluminescence Spectroscopy of a Phosphorescent Organic Light Emitting Diode (PhOLED)Investigation of emission properties of a PhOLED. The spectrum and chromaticity coordinates of the emission and the triplet lifetime are determined using time-resolved spectroscopy.
Photophysical Characterisation of Perovskite Quantum DotsPerovskite Quantum Dots are a promising new class of light emitters. In this paper a complete photophysical characterisation, comprising of absorption spectra, photoluminescence spectra, photoluminescence lifetime, and quantum yield of two...
Design Optimization & Sensitivity Analysis of Photonic Integrated CircuitsThis paper covers the use of design and simulation software in the development of photonic integrated circuits (PICs). Using the workflow put forward in this paper, users can analyze their PIC layout in 3D to calculate scattering parameters and...
Solving 5 Big Thin-Film Deposition Challenges Facing Contract CoatersThe contract thin-film coating industry is poised for growth, with many target markets expected to see substantial gains over the next five to ten years. Contract coaters need to align their production platforms to take advantage of these lucrative...
A Brief Introduction to CustomizationThis five-part series is focused on optoelectronic customization, and how both emitter and detector components and assemblies can be specifically designed for customer applications, including in-depth analysis of materials, packaging, and testing....
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