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MORE SENSORS & DETECTORSSENSORS & DETECTORS WHITE PAPERS
Displacement Feedback for Closed Loop Nanopositioning SystemsPiezo-based nanopositioners for moving objects in nanometer range require ultra-precise displacement sensors to increase motion stability and accuracy. A nine axis positioner setup was implemented in a high vacuum environment and our laser interferometer was used for displacement feedback. This closed loop positioning system provided a stability of a few nanometers, while the IDS3010 was capable of identify even steps of 10 pm. In this specific setup, in total three IDS3010 were used for eight...
How Laser Quantum Measures and Reports Root Mean Square (RMS) % Noise ValueOne of Laser Quantum’s goals has always been to create lasers with the lowest possible noise. Intracavity frequency-doubled lasers have an inherent noise of about 3% RMS. Several techniques have been developed over the years to reduce this noise,...
Understanding Total Measurement Uncertainty in Power Meters and DetectorsIt is important that users of calibrated power meters and detectors understand the total uncertainty or error that exists in their measurements. Often, users assume that the rated calibration uncertainty of the Newport detector or power meter is the...
Optimizing Imaging: Resolution & Dynamic RangeResolution and dynamic range are two important specifications when evaluating the capabilities of an imaging colorimeter, yet they are easily misconstrued. The assumption is that the higher the camera resolution, the higher the dynamic range, the...
The Role of Lidar in our CitiesOur first city belonged to the Mayans, one of six areas in the world where ancient civilization arose independently. Once a thriving hub of culture, commerce and magnificent architecture in modern-day Guatemala, the city was recently discovered...
8 Things Engineers Should Know About Thermal ImagingAdding thermal imaging sensors to your next project can give your customers the ability to see the unseen, and expand their senses into the unknown. If you’re considering adding thermal sensors to your next design, there are a few things you should...
The Most Important Camera Parameters for Aerial ImagingSelecting components for an aerial imaging payload does not have to be complicated. Although the right camera choice is crucial for an aerial imaging system, the key to a success is to focus on the specifications that matter the most when imaging...
Optical Materials in CST STUDIO SUITEThis paper demonstrates the electromagnetic simulation of optical materials and explains how anisotropic and nonlinear material properties can be modeled virtually. Topics covered include birefringence, dichroism, magneto-optical activity and Kerr...
Accelerating Photonic Simulations with the Effective Index Method in RSoft ToolsThe Effective Index Method (EIM) can be used in Synopsys RSoft™ photonic design software to greatly reduce the computation time and memory requirements of a simulation by converting a 3D structure into an approximate 2D structure. This is also...
SWIR Camera Test – The New Swux UnitSWIR imaging technology based on InGaAs sensor products has been a staple of scientific sensing for decades. Large earth observing satellites have used InGaAs imaging sensors for applications that have proven benefits in several markets. These very...
How to Design a Detector Noise Limited Instrument with PbSe DetectorsPyrometers, NDIR gas analyzers, and flame monitoring systems, often make use of MWIR photoconductive PbSe detectors. Particularly, when high sensitivity and quick response time at an affordable cost are required. In order to achieve the optimal...
Key Considerations when Designing and Implementing an Outdoor-Ready Smart Imaging SystemThe key to a successful all-in-one imaging system is the use of embedded systems – especially when it comes to designing a custom proprietary system. This white paper walks you through key elements to consider when designing an embedded vision...
Working in the Basement: Measuring Signals Below the Noise Floor with a Lock-In AmplifierMeasuring optical signals in the femtowatt (10-15) to nanowatt (10-9) range can be a daunting task. Signal levels this low are lost in typical detector noise levels and swamped by background light. The noise floor for photodiode detectors operated...
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....
High-Performance FDTD Simulations with Sub-Cell/Conformal Meshing in RSoft FullWAVEDue to the computationally intensive nature of the FDTD simulation method, improved accuracy and convergence are critical for its practical use as a design algorithm in applications where numerous design variants need to be explored. This white...
Modern CMOS Sensors and Their Use in Fluorescence-Based ApplicationsDr. Felix Asche, Product Manager at Basler, outlines possibilities and application areas of modern CMOS sensor technology in medicine and science. System manufacturers whose devices are equipped with CCD sensors and who are therefore increasingly...
Selecting The Right Hyperspectral Imager Is Key To Bringing Critical Data Into ViewHyperspectral imaging is a valuable technique for revealing data the eye alone cannot capture. Revealing different characteristics from an image, hyperspectral imaging is highly prized for many applications, from gathering forensic evidence and...
Design Optimization of Grating Fiber Couplers with RSoft ProductsEngineers can readily achieve optimal design of silicon photonics devices using rigorous simulation tools to numerically optimize a large number of design parameters. This paper demonstrates how a complex grating coupler design can be efficiently...
Six Criteria to Consider when Choosing the Optimal Image SensorThis whitepaper guides imaging engineers and vision system developer on how to choose the optimal sensor for a specific application. The paper covers the basic and most important properties of an image sensor like resolution, sensitivity, dynamic...
Twelve Reasons Why Your Next Confocal Should Be DragonflyAndor’s Dragonfly High Speed Confocal Platform offers outstanding performance and flexibility, so when your research calls for confocal, consider these twelve compelling reasons why Dragonfly should be next in your lab or core facility. Dragonfly...
Using Newport 1936-R/2936-R Power Meters for Low-Power, Pulsed or Modulated Light SourcesRecent advancements in photonics technologies have broadened their applications into many different areas. An increasingly larger number of complex and diverse forms of light sources are designed into various systems and experimental setups. These...
SNR improvement in a Raman based distributed temperature sensing system using a stimulated Raman scattering filterIn Raman-based distributed temperature sensing (DTS) systems, the signal to noise ratio (SNR) is often low due to weak backscattered Raman signals. This can limit both sensing distance and temperature resolution. To overcome this power limitation,...
Autonomous automobiles don’t operate underwater, however…Autonomous vehicles use an assortment of sensors and imagers including LiDAR (Light Detection and Ranging). Whether it’s scanning system, solid state, or flash these systems need to be calibrated for sensitivity over a dynamic range of light...
Thin-Film Interference Filters for LIDARHigh-performance, ultra-narrowband interference filters with > 95% transmission, less than 0.1 nm bandwidths, steep edges, a square spectral shape, wide range blocking measured at > OD 8 (-80 dB), uniform coatings, and minimal thermal dependence...
OptSim Circuit: A SPICE-Like Photonic Simulator for Scalable PhotonicThe time for large-scale photonic integrated circuits (PICs) has arrived. Governments, academia and industry are all onboard to transfer knowledge gained from decades of manufacturing experience in electronic integrated circuits to photonic...
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